{"tests":[{"id":"tsh","questCode":"899","name":"TSH (Thyroid Stimulating Hormone)","shortName":"TSH","description":"Measures thyroid-stimulating hormone to evaluate thyroid function. TSH is the most sensitive marker for detecting thyroid disorders.","category":"thyroid","price":9,"costPrice":5.97,"fastingRequired":false,"labVendor":"Quest","biomarkers":["TSH"],"turnaroundDays":"1-2","popular":true,"sampleTypes":["serum"],"metaTitle":"TSH Blood Test - $4 | Order Online, No Doctor Visit | Justlabs","metaDescription":"Order a TSH thyroid test for just $4. Screen for hypothyroidism, hyperthyroidism, and thyroid disorders. Results in 1-2 days. No insurance or doctor visit needed.","h1Title":"TSH Blood Test (Thyroid Stimulating Hormone)","shortSummary":"The TSH test is the gold standard for evaluating thyroid function. It's the first test doctors order when thyroid problems are suspected.","longDescription":"Thyroid Stimulating Hormone (TSH) is produced by your pituitary gland and tells your thyroid how much hormone to make. When your thyroid is underactive (hypothyroidism), TSH levels rise as your body tries to stimulate more thyroid hormone production. When overactive (hyperthyroidism), TSH drops because less stimulation is needed.\n\nThis simple blood test is the most sensitive way to detect thyroid problems, often catching issues before symptoms appear or become severe.","whatItMeasures":"This test measures the level of Thyroid Stimulating Hormone (TSH) in your blood. TSH is produced by the pituitary gland in your brain and acts as the \"master controller\" of your thyroid. Normal TSH levels typically range from 0.4 to 4.0 mIU/L, though optimal ranges may be narrower (0.5-2.5 mIU/L for many people).","whoIsItFor":"Anyone experiencing symptoms of thyroid dysfunction such as unexplained weight changes, fatigue, sensitivity to cold or heat, hair loss, or mood changes. Also recommended for those with a family history of thyroid disease, women planning pregnancy, and adults over 35 as part of routine screening.","symptomsAddressed":["Fatigue","Unexplained weight gain","Weight loss","Cold intolerance","Heat intolerance","Hair loss","Dry skin","Brain fog","Depression","Anxiety","Irregular periods"],"conditionsScreened":["Hypothyroidism","Hyperthyroidism","Hashimoto's disease","Graves' disease","Thyroid nodules","Pituitary disorders"],"whenToTest":"TSH can be tested any time of day without fasting. For monitoring thyroid medication, test at the same time each day for consistency. Many doctors recommend annual screening for adults, especially women over 35.","preparationInstructions":"No special preparation needed. If taking thyroid medication (like levothyroxine), take your blood sample before your daily dose, or at least 4 hours after, for accurate results.","resultsOverview":"High TSH typically indicates an underactive thyroid (hypothyroidism) - your pituitary is working harder to stimulate the thyroid. Low TSH suggests an overactive thyroid (hyperthyroidism) - the pituitary is reducing stimulation because enough hormone is being produced. Your results will include reference ranges and clear indicators if values are abnormal.","faqs":[{"question":"What is a normal TSH level?","answer":"Normal TSH typically ranges from 0.4-4.0 mIU/L. However, optimal TSH for most people feeling their best is often 0.5-2.5 mIU/L. Ranges can vary slightly by lab."},{"question":"Should I stop taking my thyroid medication before the test?","answer":"No, don't stop your medication. However, for the most accurate results, get your blood drawn before taking your daily dose or at least 4 hours after."},{"question":"Can stress affect TSH levels?","answer":"Yes, severe stress can temporarily affect TSH. Chronic stress may suppress TSH slightly. For the most accurate baseline, test when you're not under acute stress."},{"question":"How often should I test my TSH?","answer":"For healthy adults, annual screening is often recommended. If you have thyroid disease or are on medication, your doctor may recommend testing every 6-12 weeks initially, then every 6-12 months once stable."}],"relatedTests":["free-t4","free-t3","tpo-antibodies","thyroglobulin-antibodies"],"relatedPanels":["panel-thyroid-complete","panel-wellness-comprehensive"],"name_es":"TSH (Hormona Estimulante de la Tiroides)","biomarkers_es":["TSH"],"whenToTest_es":"No se requiere ayuno. Analiza en cualquier momento, aunque a menudo se prefiere por la mañana para mayor consistencia. Si tomas medicación tiroidea, analiza antes de tu dosis diaria.","metaDescription_es":"Ordena una prueba de TSH por solo $4. El marcador más importante para la función tiroidea. Detecta hipotiroidismo e hipertiroidismo. Resultados en 1-2 días.","preparationInstructions_es":"No se necesita preparación especial. Si tomas medicación tiroidea, analiza a la misma hora cada día para resultados consistentes.","h1Title_es":"Análisis de Sangre de TSH (Hormona Estimulante de la Tiroides)","metaTitle_es":"Prueba de TSH - $4 | Tamizaje Tiroideo | Justlabs","shortName_es":"TSH","symptomsAddressed_es":["Fatiga","Aumento de peso","Pérdida de peso","Caída del cabello","Intolerancia al frío","Intolerancia al calor","Niebla mental","Depresión","Ansiedad","Períodos irregulares"],"whoIsItFor_es":"Cualquier persona con síntomas de problemas tiroideos (fatiga, cambios de peso, caída del cabello), mujeres mayores de 35 años, quienes tienen antecedentes familiares de enfermedad tiroidea, personas con otras condiciones autoinmunes, y cualquiera que desee un tamizaje tiroideo básico.","resultsOverview_es":"Rangos óptimos: TSH 0.5-2.5 mIU/L. TSH alta (>4.0) sugiere hipotiroidismo. TSH baja (<0.4) sugiere hipertiroidismo. Si la TSH es anormal, pueden ser necesarias pruebas adicionales de T4 Libre y T3 Libre.","longDescription_es":"La Hormona Estimulante de la Tiroides (TSH) es producida por la glándula pituitaria y le indica a tu tiroides cuánta hormona producir. Es el marcador más sensible de la función tiroidea.\n\nCuando tu tiroides está poco activa, la TSH sube (tu pituitaria está \"gritando\" a tu tiroides que produzca más). Cuando tu tiroides está hiperactiva, la TSH baja (tu pituitaria está diciendo \"suficiente\").\n\nEsta prueba detecta problemas de tiroides antes de que aparezcan los síntomas, lo que la hace valiosa para el tamizaje de rutina.","conditionsScreened_es":["Hipotiroidismo","Hipertiroidismo","Enfermedad de Hashimoto","Enfermedad de Graves","Nódulos tiroideos","Trastornos pituitarios"],"description_es":"Mide la TSH, el marcador principal para evaluar la función tiroidea.","shortSummary_es":"La prueba de TSH es el tamizaje más importante para la función tiroidea. Detecta tanto tiroides hipoactiva (hipotiroidismo) como hiperactiva (hipertiroidismo).","whatItMeasures_es":"Esta prueba mide la concentración de Hormona Estimulante de la Tiroides en tu sangre. El rango normal es típicamente 0.4-4.0 mIU/L, aunque muchos expertos consideran que 0.5-2.5 es óptimo. La TSH alta sugiere hipotiroidismo; la TSH baja sugiere hipertiroidismo.","faqs_es":[{"question":"¿Por qué está alta mi TSH?","answer":"La TSH alta generalmente significa que tu tiroides está poco activa (hipotiroidismo). Tu pituitaria está produciendo más TSH para intentar estimular a tu tiroides a producir más hormona. Las causas comunes incluyen la enfermedad de Hashimoto, deficiencia de yodo o medicamentos."},{"question":"¿Es suficiente solo la prueba de TSH?","answer":"Para el tamizaje, generalmente sí. Sin embargo, si la TSH es anormal o tienes síntomas con TSH normal, las pruebas de T4 Libre y T3 Libre proporcionan más detalle sobre la función tiroidea."},{"question":"¿Con qué frecuencia debo analizar mi TSH?","answer":"Para tamizaje: cada 1-2 años para adultos, anualmente si tienes factores de riesgo. Si tomas medicación tiroidea: cada 6-12 semanas al ajustar dosis, luego cada 6-12 meses una vez estable."}],"cptCode":"84443"},{"id":"free-t4","questCode":"866","name":"Free T4 (Thyroxine)","shortName":"Free T4","description":"Measures the unbound, active form of the thyroid hormone T4. Helps assess thyroid function and diagnose thyroid conditions.","category":"thyroid","price":9,"costPrice":5.2,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Free T4"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Free T4 Test - $8 | Thyroid Hormone Level | Justlabs","metaDescription":"Order a Free T4 blood test for $8. Measures the active, unbound form of thyroxine for accurate thyroid function assessment. No fasting. Results in 1-2 days.","h1Title":"Free T4 (Thyroxine) Blood Test","shortSummary":"Free T4 measures the unbound, active form of thyroxine - the main hormone produced by your thyroid gland. Unlike total T4, free T4 is not affected by protein levels and gives a more accurate picture of thyroid function.","longDescription":"Free T4 (free thyroxine) is the portion of thyroid hormone T4 that circulates unbound to proteins in your blood. Only about 0.03% of T4 is \"free\" - the rest is bound to carrier proteins. This free fraction is what's actually available for your cells to use.\n\nBecause free T4 isn't affected by protein binding changes (which can occur with pregnancy, estrogen therapy, liver disease, or certain medications), it provides a more accurate measure of your true thyroid hormone status than total T4.\n\nFree T4 is typically tested alongside TSH to get a complete picture of thyroid function. While TSH tells you how hard your pituitary is working to stimulate the thyroid, free T4 shows you how much active hormone your thyroid is actually producing.","whatItMeasures":"This test measures the concentration of unbound, biologically active T4 in your blood, reported in ng/dL. Normal free T4 levels typically range from 0.8-1.8 ng/dL, though this can vary slightly by laboratory. Low levels suggest hypothyroidism while high levels suggest hyperthyroidism.\n\nLearn more about Free T4 with this in-depth guide:\n{{article:ft4-blood-test|heading=false}}                                                                                                                                                          \n","whoIsItFor":"Anyone with abnormal TSH who needs further evaluation, people on thyroid medication (to monitor therapy), those with symptoms of thyroid dysfunction, pregnant women (thyroid needs increase during pregnancy), and anyone taking medications that affect thyroid binding proteins.","symptomsAddressed":["Fatigue","Weight changes","Cold or heat intolerance","Hair loss","Dry skin","Brain fog","Mood changes","Heart palpitations","Muscle weakness","Irregular periods"],"conditionsScreened":["Hypothyroidism","Hyperthyroidism","Hashimoto's thyroiditis","Graves' disease","Pituitary disorders","Thyroid medication monitoring","Sick euthyroid syndrome"],"whenToTest":"No fasting required. Can be tested any time of day. If taking thyroid medication, test before your daily dose or at a consistent time for monitoring. Often ordered with TSH for complete assessment.","resultsOverview":"Normal free T4 is typically 0.8-1.8 ng/dL. Low free T4 with high TSH indicates primary hypothyroidism. High free T4 with low TSH indicates hyperthyroidism. Low free T4 with low/normal TSH may suggest pituitary problems. Results should be interpreted with TSH for complete picture.","faqs":[{"question":"What's the difference between free T4 and total T4?","answer":"Total T4 measures all T4 in blood (bound + unbound), while free T4 measures only the active, unbound portion. Free T4 is more accurate because it's not affected by protein levels that can change with pregnancy, medications, or liver disease."},{"question":"Why test free T4 instead of just TSH?","answer":"TSH alone can miss some thyroid problems. Free T4 confirms whether abnormal TSH is due to actual thyroid hormone problems. Together, they distinguish between primary thyroid disease and pituitary issues."},{"question":"Should I test free T4 or free T3?","answer":"Free T4 is usually tested first because T4 is the main hormone produced by the thyroid. Free T3 is added when hyperthyroidism is suspected (sometimes T3 rises before T4) or when symptoms persist despite normal T4."},{"question":"Can medications affect free T4 results?","answer":"Yes, certain medications can affect free T4 measurement including biotin supplements, heparin, phenytoin, and high-dose aspirin. Inform your provider about all medications and supplements before testing."}],"relatedTests":["tsh","free-t3","tpo-antibodies","thyroglobulin-antibodies"],"relatedPanels":["panel-thyroid-complete"],"name_es":"T4 Libre (Tiroxina)","biomarkers_es":["T4 Libre"],"whenToTest_es":"No se requiere ayuno. A menudo se ordena junto con TSH. Si tomas medicación tiroidea, analiza antes de tu dosis diaria para resultados precisos.","metaDescription_es":"Ordena una prueba de T4 Libre por $10. Mide la producción de hormona tiroidea. Esencial para diagnosticar hipo e hipertiroidismo. Resultados en 1-2 días.","preparationInstructions_es":"No se necesita preparación especial. Continúa la medicación tiroidea como de costumbre, pero analiza a la misma hora cada día para un monitoreo consistente.","h1Title_es":"Análisis de Sangre de T4 Libre (Tiroxina)","metaTitle_es":"Prueba de T4 Libre - $10 | Nivel de Hormona Tiroidea | Justlabs","shortName_es":"T4 Libre","symptomsAddressed_es":["Fatiga","Cambios de peso","Caída del cabello","Niebla mental","Intolerancia a la temperatura","Cambios de humor"],"whoIsItFor_es":"Cualquier persona con TSH anormal, personas con síntomas tiroideos pero TSH normal, quienes monitorean medicación tiroidea, y aquellos que desean una evaluación tiroidea más completa que solo TSH.","resultsOverview_es":"Rango óptimo: T4 Libre 1.0-1.5 ng/dL. T4 Libre baja con TSH alta = hipotiroidismo. T4 Libre alta con TSH baja = hipertiroidismo. T4 Libre normal con TSH anormal puede indicar enfermedad tiroidea subclínica.","longDescription_es":"La tiroxina (T4) es la hormona primaria producida por tu glándula tiroides. Circula en dos formas: unida a proteínas (inactiva) y libre (activa). Esta prueba mide específicamente la T4 libre, la porción que tu cuerpo puede usar.\n\nLa T4 libre es crucial para:\n• Metabolismo y gasto energético\n• Función cerebral y claridad mental\n• Crecimiento y desarrollo\n• Regulación de temperatura corporal\n\nJunto con la TSH, la T4 libre ayuda a determinar si tu tiroides está produciendo suficiente hormona.","conditionsScreened_es":["Hipotiroidismo","Hipertiroidismo","Enfermedad tiroidea subclínica","Efectividad de la medicación tiroidea"],"description_es":"Mide la T4 libre, la principal hormona producida por tu glándula tiroides.","shortSummary_es":"La T4 Libre mide la forma activa y no unida de tiroxina - la hormona primaria que produce tu tiroides. Es esencial para el metabolismo, la energía y la función cerebral.","whatItMeasures_es":"Esta prueba mide la tiroxina libre (no unida) en tu sangre. El rango normal es típicamente 0.8-1.8 ng/dL, con 1.0-1.5 ng/dL considerado óptimo por muchos profesionales. Los resultados ayudan a distinguir entre diferentes condiciones tiroideas.","cptCode":"84439"},{"id":"free-t3","questCode":"34429","name":"Free T3 (Triiodothyronine)","shortName":"Free T3","description":"Measures the active thyroid hormone T3. Important for evaluating thyroid function, especially in hyperthyroidism.","category":"thyroid","price":14,"costPrice":8.33,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Free T3"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Free T3 Test - $14 | Active Thyroid Hormone | Justlabs","metaDescription":"Order a Free T3 blood test for $14. Measures the most active thyroid hormone. Essential for hyperthyroidism and T4-to-T3 conversion issues. Results in 1-2 days.","h1Title":"Free T3 (Triiodothyronine) Blood Test","shortSummary":"Free T3 measures the unbound, most active form of thyroid hormone. T3 is 3-4 times more potent than T4 and directly affects metabolism, heart rate, body temperature, and energy levels.","longDescription":"Triiodothyronine (T3) is the most active thyroid hormone, being 3-4 times more potent than T4. While the thyroid produces some T3 directly, most T3 is converted from T4 in peripheral tissues like the liver, kidneys, and muscles.\n\nFree T3 measures the unbound, biologically active portion of T3 in your blood. This free fraction (about 0.3% of total T3) is what actually enters cells and regulates metabolism, body temperature, heart rate, and energy production.\n\nTesting free T3 is particularly important when:\n- Hyperthyroidism is suspected (T3 often rises before T4)\n- Symptoms persist despite normal TSH and T4\n- T4-to-T3 conversion problems are suspected\n- Evaluating thyroid medication that contains T3","whatItMeasures":"This test measures the concentration of unbound, active T3 in your blood, reported in pg/dL. Normal free T3 levels typically range from 2.3-4.2 pg/dL. Low levels can indicate hypothyroidism or poor T4-to-T3 conversion, while high levels suggest hyperthyroidism.","whoIsItFor":"People with hyperthyroid symptoms (especially rapid heart rate, weight loss, anxiety), those with persistent fatigue despite normal T4, patients on T3-containing thyroid medications, and anyone with suspected T4-to-T3 conversion issues.","symptomsAddressed":["Rapid heart rate","Anxiety and nervousness","Weight loss despite good appetite","Tremors","Heat intolerance","Excessive sweating","Fatigue despite normal T4","Hair loss","Insomnia","Diarrhea"],"conditionsScreened":["Hyperthyroidism","T3 toxicosis","Graves' disease","Conversion disorder","Thyroid medication optimization","Non-thyroidal illness syndrome","Hashimoto's thyroiditis"],"whenToTest":"No fasting required. Can be tested any time of day. If taking T3-containing medication (Cytomel, Armour, compounded), timing relative to dose matters - discuss with your provider.","resultsOverview":"Normal free T3 is typically 2.3-4.2 pg/dL. High free T3 with low TSH indicates hyperthyroidism. Low free T3 with high TSH suggests hypothyroidism. Low free T3 with normal T4 may indicate conversion problems from chronic illness, stress, or certain medications.","faqs":[{"question":"Why might I have normal T4 but low T3?","answer":"T4 must be converted to T3 in peripheral tissues. Chronic illness, stress, inflammation, certain medications, low selenium/zinc, and aging can impair this conversion. This is sometimes called \"low T3 syndrome\" or \"euthyroid sick syndrome.\""},{"question":"What is T3 toxicosis?","answer":"T3 toxicosis is a form of hyperthyroidism where T3 is elevated but T4 is normal. This can occur early in Graves' disease or with toxic thyroid nodules. Testing T3 catches this condition that would be missed by T4 alone."},{"question":"Should everyone test free T3?","answer":"Not necessarily. TSH and free T4 are sufficient for most thyroid screening. Free T3 adds value when hyperthyroidism is suspected, when symptoms persist despite normal T4, or when monitoring T3-containing thyroid medication."},{"question":"Can supplements improve T3 levels?","answer":"Selenium and zinc support T4-to-T3 conversion. However, if T3 is truly low due to thyroid disease, supplements won't fix the underlying problem. Talk to your doctor about appropriate treatment."}],"relatedTests":["tsh","free-t4","reverse-t3","tpo-antibodies"],"relatedPanels":["panel-thyroid-complete"],"name_es":"T3 Libre (Triyodotironina)","biomarkers_es":["T3 Libre"],"whenToTest_es":"No se requiere ayuno. A menudo se ordena junto con TSH y T4 Libre para una evaluación tiroidea completa. Si tomas medicación tiroidea, analiza antes de tu dosis diaria.","metaDescription_es":"Ordena una prueba de T3 Libre por $14. Mide la hormona tiroidea activa que tus células realmente usan. Detecta problemas de conversión. Resultados en 1-2 días.","preparationInstructions_es":"No se necesita preparación especial. Evita la biotina (B7) 48 horas antes de la prueba ya que puede interferir con los resultados.","h1Title_es":"Análisis de Sangre de T3 Libre (Triyodotironina)","metaTitle_es":"Prueba de T3 Libre - $14 | Hormona Tiroidea Activa | Justlabs","shortName_es":"T3 Libre","symptomsAddressed_es":["Fatiga persistente","Niebla mental","Metabolismo lento","Dificultad para perder peso","Baja temperatura corporal","Síntomas a pesar de medicación tiroidea"],"whoIsItFor_es":"Personas con síntomas tiroideos pero TSH/T4 normales, quienes toman medicación tiroidea (especialmente solo T4), aquellos con estrés crónico o enfermedad, y cualquiera que desee una evaluación completa de la función tiroidea.","resultsOverview_es":"Rango óptimo: T3 Libre 3.0-4.0 pg/mL. T3 baja con T4 normal sugiere problemas de conversión (a menudo por estrés, enfermedad o dieta). T3 alta indica hipertiroidismo. La proporción T3/T4 Reversa también es importante para algunos pacientes.","longDescription_es":"La triyodotironina (T3) es la hormona tiroidea activa que impulsa tu metabolismo a nivel celular. Aunque tu tiroides produce principalmente T4, tu cuerpo convierte T4 en T3 según sea necesario.\n\nLa T3 Libre es importante porque:\n• Es 4-5 veces más potente que la T4\n• Es la hormona que tus células realmente usan\n• Algunas personas no convierten bien T4 a T3\n• Puede estar baja incluso con TSH y T4 normales\n\nProblemas de conversión de T3 a menudo se pasan por alto cuando solo se analiza TSH.","conditionsScreened_es":["Síndrome de T3 baja","Hipotiroidismo","Problemas de conversión de T4 a T3","Síndrome del enfermo eutiroideo"],"description_es":"Mide la T3 libre, la hormona tiroidea activa que tus células realmente usan.","shortSummary_es":"La T3 Libre es la hormona tiroidea activa - la que tus células realmente usan para energía y metabolismo. Baja T3 puede causar síntomas incluso cuando la TSH y T4 son normales.","whatItMeasures_es":"Esta prueba mide la triyodotironina libre (no unida) en tu sangre. El rango normal es típicamente 2.3-4.2 pg/mL, con 3.0-4.0 pg/mL considerado óptimo. Los resultados revelan si tu cuerpo está convirtiendo T4 a T3 efectivamente.","cptCode":"84481"},{"id":"reverse-t3","questCode":"90963","name":"Reverse T3","shortName":"Reverse T3","description":"Measures reverse T3, an inactive form of thyroid hormone. Elevated levels may indicate stress, illness, or conversion issues.","category":"thyroid","price":28,"costPrice":22,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Reverse T3"],"turnaroundDays":"3-5","sampleTypes":["serum"],"metaTitle":"Reverse T3 Test - $24 | Inactive Thyroid Hormone | Justlabs","metaDescription":"Order a Reverse T3 blood test for $24. Evaluate thyroid hormone conversion issues. Elevated in stress, illness, and low T3 syndrome. Results in 3-5 days.","h1Title":"Reverse T3 Blood Test","shortSummary":"Reverse T3 (rT3) is an inactive form of thyroid hormone produced when the body diverts T4 conversion away from active T3. Elevated levels may indicate stress, illness, or thyroid conversion problems.","longDescription":"Reverse T3 (rT3) is a metabolically inactive form of thyroid hormone. Your body normally converts T4 (the storage hormone) into T3 (the active hormone), but under certain conditions, it instead converts T4 into rT3, which blocks T3 receptors without activating them.\n\nThis \"thyroid shunting\" is a protective mechanism during illness, stress, or calorie restriction—slowing metabolism to conserve energy. However, chronically elevated rT3 can cause hypothyroid symptoms despite normal TSH and T4 levels.\n\nReverse T3 testing is controversial in mainstream medicine but valued in functional medicine for explaining persistent hypothyroid symptoms with normal conventional labs. The ratio of Free T3 to Reverse T3 may be more informative than rT3 alone.","whatItMeasures":"This test measures the concentration of Reverse T3 in your blood, reported in ng/dL. It's often interpreted alongside Free T3 to calculate the Free T3:Reverse T3 ratio.","whoIsItFor":"People with hypothyroid symptoms despite normal TSH, those with chronic illness or stress, anyone investigating \"low T3 syndrome,\" people on T4-only thyroid medication with persistent symptoms, and those evaluating thyroid conversion issues.","symptomsAddressed":["Fatigue despite normal TSH","Cold intolerance","Weight gain","Brain fog","Depression","Hair loss","Constipation","Muscle weakness"],"conditionsScreened":["Low T3 syndrome","Euthyroid sick syndrome","Thyroid conversion problems","Chronic stress effects","Recovery from illness","Calorie restriction effects"],"whenToTest":"No fasting required. Best tested alongside Free T3 and Free T4 for complete interpretation. Avoid testing during acute illness unless evaluating sick euthyroid syndrome.","resultsOverview":"Normal Reverse T3: 9-27 ng/dL. More important is the Free T3:Reverse T3 ratio. Ratios above 20 (when Free T3 is in pg/mL and rT3 in ng/dL) are generally considered optimal. Lower ratios suggest T4-to-rT3 shunting.","faqs":[{"question":"What causes high Reverse T3?","answer":"Elevated rT3 can result from chronic stress, severe calorie restriction, illness, inflammation, liver or kidney disease, certain medications (beta-blockers, amiodarone), and high cortisol. The body produces more rT3 to slow metabolism during these states."},{"question":"Is Reverse T3 testing standard?","answer":"Reverse T3 testing is not routinely recommended by mainstream endocrinology organizations and may not be covered by insurance. It is more commonly used in functional medicine. Some practitioners find it valuable; others consider it unnecessary."},{"question":"Can I lower my Reverse T3?","answer":"Addressing underlying causes helps: reducing stress, adequate calorie intake, treating illness, improving sleep, and managing inflammation. Some practitioners add T3 medication for persistent elevation, though this is controversial."},{"question":"What is the Free T3:Reverse T3 ratio?","answer":"This ratio compares active T3 to inactive rT3. A higher ratio suggests good T4-to-T3 conversion; a lower ratio suggests shunting to rT3. Calculation depends on units used. Discuss interpretation with your provider."}],"relatedTests":["free-t3","free-t4","tsh","thyroid-panel-complete"],"name_es":"T3 Reversa","biomarkers_es":["T3 Reversa"],"whenToTest_es":"No se requiere ayuno. A menudo se ordena junto con T3 Libre para calcular la proporción. Si estás agudamente enfermo, espera hasta recuperarte para obtener resultados basales.","metaDescription_es":"Ordena una prueba de T3 Reversa por $24. Detecta T3 Reversa alta que causa fatiga y síntomas tiroideos con TSH normal. Resultados en 2-3 días.","h1Title_es":"Análisis de Sangre de T3 Reversa","metaTitle_es":"Prueba de T3 Reversa - $24 | Síndrome de T3 Baja | Justlabs","shortName_es":"T3r","symptomsAddressed_es":["Fatiga persistente","Niebla mental","Metabolismo lento","Dificultad para perder peso","Baja temperatura corporal","Síntomas a pesar de medicación tiroidea"],"whoIsItFor_es":"Personas con síntomas tiroideos pero TSH/T4/T3 normales, quienes están bajo estrés crónico, personas con enfermedades crónicas o recuperándose de cirugía, quienes hacen dietas muy restrictivas, y cualquiera que desee una evaluación tiroidea exhaustiva.","resultsOverview_es":"T3 Reversa alta (>24 ng/dL) o proporción T3L/rT3 baja (<20) sugiere \"dominancia de T3 Reversa\". Esto puede causar síntomas de hipotiroidismo que no responden a la medicación tiroidea estándar sin abordar la causa subyacente.","longDescription_es":"La T3 Reversa (rT3) es el \"hermano\" inactivo de la T3. Tu cuerpo produce rT3 a partir de T4, pero a diferencia de la T3 activa, la rT3 bloquea los receptores tiroideos sin activarlos - esencialmente frenando tu metabolismo.\n\nLos niveles de rT3 aumentan durante:\n• Estrés crónico\n• Enfermedad o cirugía\n• Dietas muy bajas en calorías\n• Deficiencias de nutrientes\n• Inflamación\n\nEsto es un mecanismo de supervivencia - tu cuerpo ralentiza el metabolismo durante el estrés. Pero la rT3 crónicamente elevada causa síntomas de hipotiroidismo a pesar de pruebas tiroideas \"normales\".","conditionsScreened_es":["Síndrome de T3 Baja","Dominancia de T3 Reversa","Síndrome del enfermo eutiroideo"],"description_es":"Mide la T3 reversa, la forma inactiva de la hormona tiroidea que puede bloquear la acción de la T3.","shortSummary_es":"La T3 Reversa es la forma inactiva de la hormona tiroidea. Niveles altos pueden causar síntomas de hipotiroidismo incluso cuando la TSH y T4 son normales.","whatItMeasures_es":"Esta prueba mide la concentración de T3 reversa en tu sangre. El rango normal es típicamente 10-24 ng/dL. Más importante que el nivel absoluto es la proporción T3 Libre/T3 Reversa, idealmente mayor de 20.","cptCode":"84482"},{"id":"tpo-antibodies","questCode":"5081","name":"TPO Antibodies (Thyroid Peroxidase)","shortName":"TPO Ab","description":"Detects antibodies against thyroid peroxidase enzyme. Elevated levels suggest autoimmune thyroid disease like Hashimoto's.","category":"thyroid","price":14,"costPrice":10,"fastingRequired":false,"labVendor":"Quest","biomarkers":["TPO Antibodies"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"TPO Antibodies Test - $12 | Hashimoto's Screening | Justlabs","metaDescription":"Order a TPO Antibodies blood test for $12. Screen for Hashimoto's thyroiditis and autoimmune thyroid disease. No fasting required. Results in 2-3 days.","h1Title":"TPO Antibodies (Thyroid Peroxidase Antibodies) Blood Test","shortSummary":"TPO antibodies are markers of autoimmune thyroid disease. Elevated levels indicate Hashimoto's thyroiditis, the most common cause of hypothyroidism in the United States.","longDescription":"Thyroid Peroxidase (TPO) is an enzyme essential for thyroid hormone production. In autoimmune thyroid disease, the immune system mistakenly produces antibodies against TPO, leading to thyroid inflammation and damage.\n\nTPO antibodies are found in approximately 95% of Hashimoto's thyroiditis patients and 70-80% of Graves' disease patients. They can be detected years before thyroid dysfunction appears, making them useful for identifying at-risk individuals.\n\nHashimoto's thyroiditis causes gradual thyroid destruction, eventually leading to hypothyroidism. Early detection through TPO antibody testing allows monitoring and early intervention. Even with normal TSH, positive TPO antibodies increase the risk of future hypothyroidism.","whatItMeasures":"This test measures the concentration of antibodies against thyroid peroxidase enzyme in your blood, typically reported in IU/mL. Results are classified as positive (elevated) or negative (normal).","whoIsItFor":"Anyone with symptoms of thyroid dysfunction, those with family history of autoimmune thyroid disease, people with other autoimmune conditions (increased risk), women planning pregnancy, those with unexplained fatigue or weight changes, and anyone with goiter.","symptomsAddressed":["Fatigue","Weight gain","Cold intolerance","Hair loss","Depression","Constipation","Dry skin","Muscle aches","Brain fog"],"conditionsScreened":["Hashimoto's thyroiditis","Graves' disease","Autoimmune thyroid disease","Postpartum thyroiditis risk","Thyroiditis evaluation"],"whenToTest":"No fasting required. Can be tested any time. If you have symptoms of thyroid dysfunction, test alongside TSH and Free T4 for complete evaluation.","resultsOverview":"Negative: <9 IU/mL (varies by lab). Positive: Above reference range. Positive TPO antibodies with normal TSH indicates Hashimoto's risk but not current dysfunction. The higher the antibody level, the greater the likelihood of developing hypothyroidism over time.","faqs":[{"question":"Does positive TPO mean I have thyroid disease?","answer":"Positive TPO antibodies indicate autoimmune activity against your thyroid, but you may not yet have thyroid dysfunction. About 20% of people with positive TPO develop hypothyroidism within 20 years. Regular TSH monitoring is recommended."},{"question":"Can TPO antibodies decrease?","answer":"Yes, TPO antibody levels can fluctuate and sometimes decrease. Some research suggests that gluten-free diet, selenium supplementation, and addressing underlying inflammation may help reduce antibody levels in some people."},{"question":"Should I test TPO or TG antibodies?","answer":"TPO antibodies are more commonly elevated in Hashimoto's (95% vs 60-70% for TG antibodies). Testing both provides the most complete picture, as some people have elevated TG antibodies with normal TPO. The combined panel is often recommended."},{"question":"I have positive TPO but normal TSH. Do I need treatment?","answer":"Generally, treatment isn't started until TSH becomes abnormal. However, positive antibodies warrant monitoring (typically annual TSH). Some practitioners consider low-dose thyroid hormone for symptomatic patients with very high antibodies, but this is controversial."}],"relatedTests":["tsh","free-t4","thyroglobulin-antibodies","tpo-tg-antibodies"],"name_es":"Anticuerpos TPO","biomarkers_es":["Anticuerpos TPO"],"whenToTest_es":"No se requiere ayuno. Puede analizarse en cualquier momento. A menudo se ordena junto con TSH y T4 Libre para evaluación tiroidea completa.","metaDescription_es":"Ordena una prueba de anticuerpos TPO por $14. Detecta tiroiditis de Hashimoto y enfermedad tiroidea autoinmune. Resultados en 1-2 días.","h1Title_es":"Análisis de Sangre de Anticuerpos TPO","metaTitle_es":"Prueba de Anticuerpos TPO - $14 | Tiroiditis de Hashimoto | Justlabs","shortName_es":"Anti-TPO","symptomsAddressed_es":["Fatiga","Aumento de peso","Caída del cabello","Niebla mental","Depresión","Intolerancia al frío"],"whoIsItFor_es":"Cualquier persona con TSH anormal (para determinar la causa), quienes tienen síntomas tiroideos con TSH normal, personas con antecedentes familiares de enfermedad tiroidea o autoinmune, mujeres que planean embarazo, y quienes tienen otras condiciones autoinmunes.","resultsOverview_es":"Anticuerpos TPO >35 UI/mL sugieren enfermedad tiroidea autoinmune. Niveles más altos a menudo se correlacionan con más inflamación. Incluso con anticuerpos positivos, los niveles de hormonas tiroideas pueden ser normales durante años antes de desarrollar hipotiroidismo manifiesto.","longDescription_es":"La Peroxidasa Tiroidea (TPO) es la enzima clave que tu tiroides usa para producir hormonas. Los anticuerpos TPO son autoanticuerpos que atacan esta enzima, causando inflamación tiroidea y eventual hipotiroidismo.\n\nLos anticuerpos TPO elevados indican enfermedad tiroidea autoinmune, más comúnmente tiroiditis de Hashimoto. Importante: pueden estar elevados años antes de que los niveles de hormonas tiroideas se vuelvan anormales, permitiendo detección temprana.","conditionsScreened_es":["Tiroiditis de Hashimoto","Enfermedad tiroidea autoinmune","Enfermedad de Graves"],"description_es":"Mide anticuerpos contra la peroxidasa tiroidea, el marcador principal de tiroiditis autoinmune.","shortSummary_es":"Los anticuerpos TPO atacan la enzima que produce hormonas tiroideas. Elevados en más del 90% de las personas con tiroiditis de Hashimoto, la causa más común de hipotiroidismo.","whatItMeasures_es":"Esta prueba mide la concentración de anticuerpos anti-TPO en tu sangre. Normal: <35 UI/mL. Niveles más altos indican mayor actividad autoinmune contra la tiroides.","cptCode":"86376"},{"id":"thyroglobulin-antibodies","questCode":"267","name":"Thyroglobulin Antibodies","shortName":"TG Ab","description":"Detects antibodies against thyroglobulin protein. Used to evaluate autoimmune thyroid conditions.","category":"thyroid","price":15,"costPrice":6.89,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Thyroglobulin Antibodies"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Thyroglobulin Antibodies Test - $11 | Autoimmune Thyroid | Justlabs","metaDescription":"Order a Thyroglobulin Antibodies test for $11. Evaluate autoimmune thyroid disease and monitor thyroid cancer. No fasting required. Results in 2-3 days.","h1Title":"Thyroglobulin Antibodies (TG Ab) Blood Test","shortSummary":"Thyroglobulin antibodies target thyroglobulin protein in the thyroid gland. Elevated levels indicate autoimmune thyroid disease and are also important for thyroid cancer monitoring.","longDescription":"Thyroglobulin (TG) is a protein produced exclusively by the thyroid gland and used to make thyroid hormones. In autoimmune thyroid disease, the immune system produces antibodies against thyroglobulin, contributing to thyroid inflammation and damage.\n\nTG antibodies are found in 60-70% of Hashimoto's thyroiditis patients and some Graves' disease patients. They often occur together with TPO antibodies but can be elevated independently. About 10% of people with Hashimoto's have elevated TG antibodies but normal TPO antibodies.\n\nAdditionally, TG antibodies are crucial for thyroid cancer surveillance. After thyroid cancer treatment, doctors monitor thyroglobulin levels as a tumor marker. However, TG antibodies interfere with this measurement, making their presence important to know for accurate cancer monitoring.","whatItMeasures":"This test measures antibodies against thyroglobulin protein in your blood, reported in IU/mL. Results help assess autoimmune thyroid disease and are essential for interpreting thyroglobulin tumor marker results.","whoIsItFor":"Those being evaluated for autoimmune thyroid disease, people with Hashimoto's or Graves' disease, thyroid cancer patients (for monitoring interpretation), anyone with positive TPO antibodies (complete picture), and those with family history of thyroid autoimmunity.","symptomsAddressed":["Fatigue","Weight changes","Temperature sensitivity","Hair loss","Goiter","Mood changes","Neck swelling or discomfort"],"conditionsScreened":["Hashimoto's thyroiditis","Graves' disease","Autoimmune thyroid disease","Thyroid cancer monitoring (interference assessment)","Postpartum thyroiditis"],"whenToTest":"No fasting required. Often ordered with TPO antibodies for complete autoimmune thyroid assessment. In thyroid cancer patients, tested whenever thyroglobulin is measured.","resultsOverview":"Negative: Typically <4 IU/mL (varies by lab). Positive results indicate autoimmune thyroid activity. In thyroid cancer monitoring, positive TG antibodies mean thyroglobulin tumor marker results may be unreliable and require different surveillance strategies.","faqs":[{"question":"Why test both TPO and TG antibodies?","answer":"While TPO antibodies are elevated in more Hashimoto's cases, some patients only have TG antibodies. Testing both catches more cases of autoimmune thyroid disease. About 10% of Hashimoto's patients are TG-antibody positive but TPO-negative."},{"question":"How do TG antibodies affect thyroid cancer monitoring?","answer":"Thyroglobulin is used as a tumor marker after thyroid cancer treatment. TG antibodies can falsely lower thyroglobulin measurements, potentially masking cancer recurrence. When TG antibodies are present, doctors use antibody trends rather than absolute thyroglobulin values."},{"question":"Can TG antibodies decrease over time?","answer":"Yes, TG antibodies can fluctuate and may decrease with treatment of underlying conditions, dietary changes, or spontaneously. In thyroid cancer patients, declining TG antibodies are generally a favorable sign."},{"question":"Are TG antibodies hereditary?","answer":"Autoimmune thyroid disease runs in families. If you have relatives with thyroid autoimmunity, you have a higher chance of having positive antibodies. Screening family members of those with autoimmune thyroid disease can identify at-risk individuals."}],"relatedTests":["tpo-antibodies","tsh","free-t4","tpo-tg-antibodies"],"name_es":"Anticuerpos Tiroglobulina","biomarkers_es":["Anticuerpos Tiroglobulina"],"whenToTest_es":"No se requiere ayuno. A menudo se ordena junto con anticuerpos TPO para evaluación autoinmune completa.","metaDescription_es":"Ordena una prueba de anticuerpos tiroglobulina por $18. Detecta enfermedad tiroidea autoinmune. A menudo se ordena junto con anticuerpos TPO. Resultados en 1-2 días.","h1Title_es":"Análisis de Sangre de Anticuerpos Tiroglobulina","metaTitle_es":"Prueba de Anticuerpos Tiroglobulina - $18 | Tiroides Autoinmune | Justlabs","shortName_es":"Anti-Tg","symptomsAddressed_es":["Fatiga","Aumento de peso","Síntomas tiroideos inexplicables"],"whoIsItFor_es":"Cualquier persona evaluada para enfermedad tiroidea autoinmune, quienes tienen anticuerpos TPO negativos pero se sospecha Hashimoto, personas con antecedentes familiares de enfermedad tiroidea, y seguimiento post-tratamiento de cáncer de tiroides (donde la tiroglobulina es un marcador tumoral).","resultsOverview_es":"Anticuerpos TG >20 UI/mL sugieren enfermedad tiroidea autoinmune. En el contexto del seguimiento de cáncer de tiroides, la presencia de anticuerpos TG puede interferir con las mediciones de tiroglobulina.","longDescription_es":"La tiroglobulina es la proteína donde tu tiroides almacena hormonas tiroideas. Los anticuerpos contra la tiroglobulina pueden interferir con la producción de hormonas tiroideas y contribuir a la tiroiditis autoinmune.\n\nAunque los anticuerpos TPO son más comunes en Hashimoto, algunas personas solo tienen anticuerpos tiroglobulina elevados. Por eso, analizar ambos proporciona la imagen más completa de la actividad autoinmune tiroidea.","conditionsScreened_es":["Tiroiditis de Hashimoto","Enfermedad tiroidea autoinmune"],"description_es":"Mide anticuerpos contra la tiroglobulina, una proteína usada en la producción de hormonas tiroideas.","shortSummary_es":"Los anticuerpos tiroglobulina atacan la proteína que almacena hormonas tiroideas. Junto con los anticuerpos TPO, ayudan a confirmar enfermedad tiroidea autoinmune.","whatItMeasures_es":"Esta prueba mide la concentración de anticuerpos anti-tiroglobulina en tu sangre. Normal: <20 UI/mL. Niveles elevados indican actividad autoinmune contra la tiroides.","cptCode":"86800"},{"id":"tpo-tg-antibodies","questCode":"7260","name":"TPO & TG Antibodies","shortName":"Thyroid Antibodies","description":"Comprehensive thyroid antibody panel testing both TPO and thyroglobulin antibodies for autoimmune thyroid assessment.","category":"thyroid","price":27,"costPrice":17.08,"fastingRequired":false,"labVendor":"Quest","biomarkers":["TPO Antibodies","Thyroglobulin Antibodies"],"turnaroundDays":"2-3","popular":true,"sampleTypes":["serum"],"metaTitle":"Thyroid Antibodies Test (TPO & TG) - $20 | Hashimoto's Screening | Justlabs","metaDescription":"Screen for Hashimoto's and autoimmune thyroid disease with TPO & TG antibodies test for $20. Detect thyroid autoimmunity early. Results in 2-3 days.","h1Title":"Thyroid Antibodies Test (TPO & Thyroglobulin)","shortSummary":"This panel tests for both major thyroid antibodies that indicate autoimmune thyroid disease, the most common cause of thyroid problems.","longDescription":"Autoimmune thyroid disease is the leading cause of hypothyroidism and hyperthyroidism. Your immune system can mistakenly attack your thyroid gland, producing antibodies against thyroid proteins. This test measures two key antibodies:\n\n• TPO (Thyroid Peroxidase) Antibodies - Found in 90% of Hashimoto's cases\n• Thyroglobulin Antibodies - Often elevated alongside TPO antibodies\n\nDetecting these antibodies early can help predict thyroid dysfunction before it occurs and guide treatment decisions.","whatItMeasures":"This panel measures two antibodies: TPO antibodies attack the enzyme thyroid peroxidase (needed to make thyroid hormones), while thyroglobulin antibodies target the protein used to produce thyroid hormones. Elevated levels of either suggest your immune system is attacking your thyroid.","whoIsItFor":"Anyone with a family history of autoimmune thyroid disease, unexplained thyroid symptoms, or abnormal TSH levels. Essential for women planning pregnancy, those with other autoimmune conditions, and anyone wanting to understand the cause of their thyroid problems.","symptomsAddressed":["Fatigue","Weight changes","Hair loss","Goiter (neck swelling)","Mood changes","Temperature sensitivity","Brain fog","Joint pain","Dry skin"],"conditionsScreened":["Hashimoto's thyroiditis","Graves' disease","Postpartum thyroiditis","Autoimmune thyroid disease","Thyroid inflammation"],"whenToTest":"Test anytime without fasting. Recommended when TSH is abnormal, if you have symptoms of thyroid disease, or if you have other autoimmune conditions. Antibodies can be detected years before thyroid dysfunction develops.","resultsOverview":"Elevated antibodies indicate autoimmune thyroid activity. TPO antibodies >35 IU/mL and/or TG antibodies >20 IU/mL suggest autoimmune thyroid disease. Higher levels often correlate with greater thyroid inflammation. Even if levels are elevated, thyroid function may still be normal - but monitoring becomes important.","faqs":[{"question":"What does it mean if my thyroid antibodies are elevated?","answer":"Elevated antibodies mean your immune system is producing proteins that attack your thyroid. This doesn't always cause immediate thyroid dysfunction, but indicates Hashimoto's or another autoimmune thyroid condition that should be monitored."},{"question":"Can thyroid antibodies go down?","answer":"Yes, antibody levels can fluctuate and sometimes decrease with lifestyle changes, reduced inflammation, or treatment. However, they rarely disappear completely once present."},{"question":"Should I test antibodies if my TSH is normal?","answer":"Yes! Antibodies can be elevated for years before TSH becomes abnormal. Early detection allows for proactive monitoring and lifestyle interventions that may slow progression."},{"question":"What's the difference between TPO and TG antibodies?","answer":"TPO antibodies attack the enzyme that makes thyroid hormones and are found in 90% of Hashimoto's cases. TG antibodies attack the protein that stores thyroid hormones. Testing both gives the most complete picture."}],"relatedTests":["tsh","free-t4","free-t3","reverse-t3"],"relatedPanels":["panel-thyroid-complete"],"name_es":"Anticuerpos TPO y TG","biomarkers_es":["Anticuerpos TPO","Anticuerpos Tiroglobulina"],"metaDescription_es":"Detecta Hashimoto y enfermedad tiroidea autoinmune con la prueba de anticuerpos TPO y TG por $20. Detecta autoinmunidad tiroidea temprano. Resultados en 2-3 días.","h1Title_es":"Prueba de Anticuerpos Tiroideos (TPO y Tiroglobulina)","metaTitle_es":"Prueba de Anticuerpos Tiroideos (TPO y TG) - $20 | Detección de Hashimoto | Justlabs","shortName_es":"Anticuerpos Tiroideos","symptomsAddressed_es":["Fatiga","Cambios de peso","Pérdida de cabello","Bocio (hinchazón del cuello)","Cambios de humor","Sensibilidad a la temperatura","Niebla mental","Dolor articular","Piel seca"],"whoIsItFor_es":"Cualquier persona con historial familiar de enfermedad tiroidea autoinmune, síntomas tiroideos inexplicables, o niveles anormales de TSH. Esencial para mujeres planeando embarazo, aquellas con otras condiciones autoinmunes, y cualquiera que quiera entender la causa de sus problemas tiroideos.","resultsOverview_es":"Los anticuerpos elevados indican actividad tiroidea autoinmune. Anticuerpos TPO >35 UI/mL y/o anticuerpos TG >20 UI/mL sugieren enfermedad tiroidea autoinmune. Niveles más altos a menudo se correlacionan con mayor inflamación tiroidea. Incluso si los niveles están elevados, la función tiroidea puede seguir siendo normal - pero el monitoreo se vuelve importante.","longDescription_es":"La enfermedad tiroidea autoinmune es la causa principal de hipotiroidismo e hipertiroidismo. Tu sistema inmune puede atacar erróneamente tu glándula tiroides, produciendo anticuerpos contra proteínas tiroideas. Esta prueba mide dos anticuerpos clave:\n\n• Anticuerpos TPO (Peroxidasa Tiroidea) - Se encuentran en el 90% de los casos de Hashimoto\n• Anticuerpos Tiroglobulina - A menudo elevados junto con los anticuerpos TPO\n\nDetectar estos anticuerpos temprano puede ayudar a predecir disfunción tiroidea antes de que ocurra y guiar decisiones de tratamiento.","conditionsScreened_es":["Tiroiditis de Hashimoto","Enfermedad de Graves","Tiroiditis posparto","Enfermedad tiroidea autoinmune","Inflamación tiroidea"],"description_es":"Panel completo de anticuerpos tiroideos que analiza tanto anticuerpos TPO como tiroglobulina para evaluación de tiroides autoinmune.","shortSummary_es":"Este panel analiza ambos anticuerpos tiroideos principales que indican enfermedad tiroidea autoinmune, la causa más común de problemas de tiroides.","whatItMeasures_es":"Este panel mide dos anticuerpos: Los anticuerpos TPO atacan la enzima peroxidasa tiroidea (necesaria para producir hormonas tiroideas), mientras que los anticuerpos tiroglobulina atacan la proteína usada para producir hormonas tiroideas. Niveles elevados de cualquiera sugieren que tu sistema inmune está atacando tu tiroides.","faqs_es":[{"question":"¿Qué significa si mis anticuerpos tiroideos están elevados?","answer":"Los anticuerpos elevados significan que tu sistema inmune está produciendo proteínas que atacan tu tiroides. Esto no siempre causa disfunción tiroidea inmediata, pero indica Hashimoto u otra condición tiroidea autoinmune que debe monitorearse."},{"question":"¿Pueden bajar los anticuerpos tiroideos?","answer":"Sí, los niveles de anticuerpos pueden fluctuar y a veces disminuir con cambios de estilo de vida, reducción de inflamación o tratamiento. Sin embargo, rara vez desaparecen completamente una vez presentes."},{"question":"¿Debo analizar anticuerpos si mi TSH es normal?","answer":"¡Sí! Los anticuerpos pueden estar elevados por años antes de que la TSH se vuelva anormal. La detección temprana permite monitoreo proactivo e intervenciones de estilo de vida que pueden ralentizar la progresión."},{"question":"¿Cuál es la diferencia entre anticuerpos TPO y TG?","answer":"Los anticuerpos TPO atacan la enzima que produce hormonas tiroideas y se encuentran en el 90% de los casos de Hashimoto. Los anticuerpos TG atacan la proteína que almacena hormonas tiroideas. Analizar ambos da la imagen más completa."}],"cptCode":"86376, 86800"},{"id":"hemoglobin-a1c","questCode":"496","name":"Hemoglobin A1c (HbA1c)","shortName":"HbA1c","description":"Measures average blood sugar over the past 2-3 months. Key marker for diabetes management and prediabetes screening.","category":"diabetes","price":7,"costPrice":5,"fastingRequired":false,"labVendor":"Quest","biomarkers":["HbA1c","Estimated Average Glucose"],"turnaroundDays":"1-2","popular":true,"sampleTypes":["whole-blood"],"metaTitle":"HbA1c Test - $5 | Diabetes & Prediabetes Screening | Justlabs","metaDescription":"Order a Hemoglobin A1c test for just $5. Screen for diabetes and prediabetes with your 2-3 month average blood sugar. No fasting required. Results in 1-2 days.","h1Title":"Hemoglobin A1c (HbA1c) Blood Test","shortSummary":"The HbA1c test shows your average blood sugar over the past 2-3 months - like a \"blood sugar GPA\" that reveals your overall glucose control.","longDescription":"The Hemoglobin A1c (HbA1c) test measures your average blood sugar levels over the past 2-3 months. Unlike a fasting glucose test that shows a single point in time, A1c reflects your overall glucose control.\n\nThis test is the gold standard for diagnosing and monitoring diabetes. It measures the percentage of hemoglobin (the oxygen-carrying protein in red blood cells) that has glucose attached to it. The higher your blood sugar, the more glucose attaches to hemoglobin.\n\nA1c is particularly valuable because it is not affected by recent meals, stress, or illness - giving you a true picture of your metabolic health over time.","whatItMeasures":"This test measures the percentage of hemoglobin proteins in your blood that have glucose attached (glycated hemoglobin). Results are given as a percentage. Normal is below 5.7%, prediabetes is 5.7-6.4%, and diabetes is 6.5% or higher. The test also provides an Estimated Average Glucose (eAG) in mg/dL.","whoIsItFor":"Adults over 45 (or younger if overweight), anyone with risk factors for diabetes (family history, high blood pressure, PCOS, sedentary lifestyle), people with prediabetes monitoring their progress, and diabetics tracking long-term blood sugar control.","symptomsAddressed":["Increased thirst","Frequent urination","Unexplained weight loss","Fatigue","Blurred vision","Slow-healing wounds","Tingling in hands/feet","Frequent infections"],"conditionsScreened":["Type 2 diabetes","Prediabetes","Type 1 diabetes","Gestational diabetes history","Metabolic syndrome"],"whenToTest":"No fasting required - test anytime! For screening, test annually if you have risk factors. If monitoring diabetes, test every 3-6 months. Some prefer morning testing, but timing doesn't affect results.","preparationInstructions":"No fasting or special preparation needed. However, note that certain conditions can affect results: anemia, recent blood transfusion, kidney disease, or hemoglobin variants may cause inaccurate readings.","resultsOverview":"Normal: Below 5.7% | Prediabetes: 5.7% - 6.4% | Diabetes: 6.5% or higher. Each 1% change in HbA1c corresponds to roughly 30 mg/dL change in average blood sugar. For diabetics, keeping HbA1c below 7% significantly reduces risk of complications.\n\n{{article:glucose-metabolic-panel}}","faqs":[{"question":"What's the difference between HbA1c and fasting glucose?","answer":"Fasting glucose shows your blood sugar at one moment in time. HbA1c shows your average blood sugar over 2-3 months, giving a much better picture of overall blood sugar control and diabetes risk."},{"question":"Do I need to fast for this test?","answer":"No! Unlike fasting glucose, HbA1c can be done at any time of day without fasting. Eating before the test won't affect your results."},{"question":"Can HbA1c diagnose diabetes?","answer":"Yes. An HbA1c of 6.5% or higher on two separate tests is used to diagnose diabetes. Levels of 5.7-6.4% indicate prediabetes."},{"question":"How often should I test HbA1c?","answer":"For screening: annually if you have risk factors. For prediabetes: every 6-12 months to monitor progress. For diabetes: every 3-6 months depending on how well controlled your blood sugar is."}],"relatedTests":["glucose-fasting","insulin-fasting","cmp-14"],"relatedPanels":["panel-wellness-comprehensive"],"name_es":"Hemoglobina A1c (HbA1c)","biomarkers_es":["Hemoglobina A1c"],"whenToTest_es":"No se requiere ayuno - una ventaja importante sobre la glucosa en ayunas. Analiza en cualquier momento. Para monitoreo de diabetes, típicamente cada 3 meses. Para tamizaje, anualmente si tienes riesgo.","metaDescription_es":"Ordena una prueba de HbA1c por $8. Detecta prediabetes y diabetes midiendo el control de azúcar en sangre a largo plazo. Sin ayuno necesario. Resultados en 1-2 días.","preparationInstructions_es":"No se necesita preparación. Puedes comer y beber normalmente antes de la prueba. Esta es una de las razones por las que la HbA1c es preferida para el tamizaje de diabetes.","h1Title_es":"Análisis de Sangre de Hemoglobina A1c (HbA1c)","metaTitle_es":"Prueba de Hemoglobina A1c - $8 | Tamizaje de Diabetes | Justlabs","shortName_es":"HbA1c","symptomsAddressed_es":["Sed excesiva","Micción frecuente","Fatiga","Visión borrosa","Heridas que sanan lentamente","Aumento de peso","Antojos de azúcar"],"whoIsItFor_es":"Cualquier persona mayor de 45 años, adultos con factores de riesgo de diabetes (sobrepeso, antecedentes familiares, sedentarismo), mujeres con historial de diabetes gestacional, diabéticos monitoreando su control, y cualquiera preocupado por la salud metabólica.","resultsOverview_es":"Normal: <5.7%. Prediabetes: 5.7-6.4%. Diabetes: 6.5%+. Para contexto: HbA1c del 6% corresponde aproximadamente a glucosa promedio de 126 mg/dL. Cada aumento del 1% equivale a unos 29 mg/dL más de glucosa promedio.","longDescription_es":"La Hemoglobina A1c (también llamada HbA1c o A1c) mide qué porcentaje de tu hemoglobina (proteína en los glóbulos rojos) tiene glucosa adherida. Debido a que los glóbulos rojos viven aproximadamente 3 meses, esta prueba refleja tu control promedio de azúcar en sangre durante ese período.\n\nA diferencia de la glucosa en ayunas que muestra un momento, la HbA1c revela tendencias a largo plazo. Es el estándar de oro para:\n• Tamizaje de diabetes y prediabetes\n• Monitoreo del control de diabetes\n• Evaluación del riesgo metabólico","conditionsScreened_es":["Diabetes tipo 2","Prediabetes","Control de diabetes tipo 1","Síndrome metabólico"],"description_es":"Mide tu control promedio de azúcar en sangre durante los últimos 2-3 meses.","shortSummary_es":"La HbA1c muestra tu nivel promedio de azúcar en sangre durante 2-3 meses - una imagen mucho mejor que una sola lectura de glucosa. Es la prueba estándar de oro para el tamizaje y monitoreo de diabetes.","whatItMeasures_es":"Esta prueba mide el porcentaje de hemoglobina con glucosa adherida. Normal: <5.7%. Prediabetes: 5.7-6.4%. Diabetes: 6.5%+. Para diabéticos, el objetivo suele ser <7% (o individualizado).","faqs_es":[{"question":"¿Es la HbA1c mejor que la glucosa en ayunas?","answer":"Para la mayoría de los propósitos, sí. La HbA1c muestra el control promedio durante meses, no afectada por lo que comiste ayer. No requiere ayuno. Sin embargo, ambas pruebas juntas dan la imagen más completa."},{"question":"¿Puedo tener prediabetes con HbA1c normal?","answer":"Es posible. Algunas personas tienen picos de azúcar en sangre después de las comidas que no se reflejan en la HbA1c. Si tienes factores de riesgo, considera agregar glucosa en ayunas o una prueba de tolerancia a la glucosa."},{"question":"¿Con qué frecuencia debo analizar la HbA1c?","answer":"Para tamizaje: cada 1-3 años si eres de bajo riesgo, anualmente si tienes factores de riesgo. Para diabéticos: cada 3-6 meses dependiendo del control y el plan de tratamiento."}],"cptCode":"83036"},{"id":"glucose-fasting","questCode":"483","name":"Glucose, Fasting","shortName":"Fasting Glucose","description":"Measures blood sugar levels after fasting. Used to screen for diabetes and monitor blood sugar control.","category":"diabetes","price":6,"costPrice":4,"fastingRequired":true,"fastingHours":8,"labVendor":"Quest","biomarkers":["Glucose"],"turnaroundDays":"1","sampleTypes":["serum","plasma"],"metaTitle":"Fasting Glucose Test - $6 | Blood Sugar Screening | Justlabs","metaDescription":"Order a Fasting Glucose test for $6. Screen for diabetes and prediabetes with this simple blood sugar test. 8-hour fasting required. Results in 1 day.","h1Title":"Fasting Glucose Blood Test","shortSummary":"The fasting glucose test measures your blood sugar level after not eating for at least 8 hours. It's the standard screening test for diabetes and prediabetes.","longDescription":"Fasting glucose is one of the most commonly ordered blood tests and a cornerstone of diabetes screening. By measuring blood sugar after an overnight fast, this test reveals how well your body regulates glucose when no food is present.\n\nWhen you fast, your liver releases stored glucose to maintain normal blood sugar levels. In healthy individuals, insulin keeps this process in check, maintaining fasting glucose typically between 70-99 mg/dL. When insulin resistance develops or the pancreas can't produce enough insulin, fasting glucose rises.\n\nThis simple, inexpensive test can detect diabetes, identify prediabetes (when intervention is most effective), and help monitor glucose control in people with diabetes. It's often part of routine annual bloodwork.","whatItMeasures":"This test measures the concentration of glucose (sugar) in your blood after fasting, reported in mg/dL. Normal fasting glucose is 70-99 mg/dL. Prediabetes is 100-125 mg/dL. Diabetes is diagnosed at 126 mg/dL or higher (when confirmed on repeat testing).","whoIsItFor":"Anyone over age 35 for routine diabetes screening, people with diabetes risk factors (overweight, family history, sedentary lifestyle), those with symptoms of high blood sugar, and anyone wanting to understand their metabolic health.","symptomsAddressed":["Increased thirst","Frequent urination","Unexplained weight loss","Fatigue","Blurred vision","Slow-healing wounds","Tingling in hands or feet","Frequent infections"],"conditionsScreened":["Type 2 diabetes","Prediabetes","Impaired fasting glucose","Gestational diabetes screening","Metabolic syndrome","Hypoglycemia (low blood sugar)"],"whenToTest":"Fasting for 8-12 hours is required. Water is allowed and encouraged. Best done first thing in the morning after an overnight fast. Avoid alcohol the night before.","resultsOverview":"Normal: 70-99 mg/dL. Prediabetes (impaired fasting glucose): 100-125 mg/dL. Diabetes: 126 mg/dL or higher (requires confirmation on a second test). Values below 70 may indicate hypoglycemia and should be discussed with your healthcare provider.\n\nDig deeper into this test with this recommended article:                                                                                                                                                                         \n{{article:glucose-metabolic-panel}}                                                                                                                                                           \n                                                                                                                                                                                          ","faqs":[{"question":"What's the difference between fasting glucose and HbA1c?","answer":"Fasting glucose shows your blood sugar at one moment in time. HbA1c shows your average blood sugar over 2-3 months. Both are useful - fasting glucose for screening and diagnosis, HbA1c for long-term monitoring. Testing both provides the most complete picture."},{"question":"Can I drink water before the test?","answer":"Yes! Water is allowed and encouraged before fasting glucose tests. Staying hydrated makes the blood draw easier. Avoid all other beverages including coffee, tea, and juice, which can affect results."},{"question":"What if my fasting glucose is in the prediabetes range?","answer":"Prediabetes (100-125 mg/dL) is a critical warning sign but also an opportunity. Studies show that lifestyle changes - losing 5-7% of body weight, exercising 150 minutes per week, and improving diet - can prevent or delay progression to diabetes."},{"question":"How often should I test fasting glucose?","answer":"For healthy adults, every 3 years starting at age 35 is recommended. If you have prediabetes or risk factors, annual testing is advised. People with diabetes may need more frequent monitoring as directed by their healthcare provider."}],"relatedTests":["hemoglobin-a1c","insulin-fasting","lipid-panel","bmp"],"name_es":"Glucosa (Ayunas)","biomarkers_es":["Glucosa"],"whenToTest_es":"Se requiere ayuno de 8-12 horas. Analiza por la mañana antes de comer o beber (excepto agua). No fumar ni hacer ejercicio vigoroso antes de la prueba.","metaDescription_es":"Ordena una prueba de glucosa en ayunas por solo $3. Detecta diabetes y prediabetes. La prueba básica de azúcar en sangre. Resultados en 1 día.","h1Title_es":"Análisis de Glucosa en Sangre (Ayunas)","metaTitle_es":"Prueba de Glucosa en Ayunas - $3 | Tamizaje de Diabetes | Justlabs","shortName_es":"Glucosa","symptomsAddressed_es":["Sed excesiva","Micción frecuente","Fatiga","Visión borrosa","Heridas que sanan lentamente"],"whoIsItFor_es":"Cualquier persona mayor de 45 años, adultos con sobrepeso, quienes tienen antecedentes familiares de diabetes, mujeres con historial de diabetes gestacional, y cualquiera con síntomas como sed excesiva o micción frecuente.","resultsOverview_es":"Normal: <100 mg/dL. Prediabetes: 100-125 mg/dL. Diabetes: 126+ mg/dL. Los resultados anormales deben confirmarse con una segunda prueba en un día diferente.","longDescription_es":"La glucosa en ayunas mide tu nivel de azúcar en sangre después de no comer por al menos 8 horas. Es una de las formas más simples y económicas de detectar diabetes y prediabetes.\n\nTu cuerpo debería mantener la glucosa en sangre estable durante la noche. Niveles elevados en ayunas indican que este sistema de regulación no está funcionando correctamente.","conditionsScreened_es":["Diabetes tipo 2","Prediabetes"],"description_es":"Mide el nivel de azúcar en sangre después de ayunar, la prueba básica para tamizaje de diabetes.","shortSummary_es":"La glucosa en ayunas es el punto de partida para detectar diabetes y prediabetes. Muestra qué tan bien tu cuerpo controla el azúcar en sangre durante la noche.","whatItMeasures_es":"Esta prueba mide la concentración de glucosa en tu sangre en mg/dL. Normal: <100 mg/dL. Prediabetes: 100-125 mg/dL. Diabetes: 126+ mg/dL (requiere confirmación con segunda prueba).","cptCode":"82947"},{"id":"insulin-fasting","questCode":"561","name":"Insulin, Fasting","shortName":"Fasting Insulin","description":"Measures fasting insulin levels to assess insulin resistance and metabolic health. Important for early detection of diabetes risk.","category":"diabetes","price":14,"costPrice":12,"fastingRequired":true,"fastingHours":10,"labVendor":"Quest","biomarkers":["Insulin"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Fasting Insulin Test - $14 | Insulin Resistance Screening | Justlabs","metaDescription":"Order a fasting insulin test for $14. Detect insulin resistance early, before blood sugar rises. Key marker for metabolic health and diabetes prevention.","h1Title":"Fasting Insulin Blood Test","shortSummary":"Fasting insulin measures how much insulin your pancreas produces to control blood sugar - an early warning sign of metabolic problems.","longDescription":"Insulin is the hormone that moves glucose from your blood into your cells. When cells become resistant to insulin, your pancreas has to produce more to keep blood sugar normal. This \"hyperinsulinemia\" can exist for years before blood sugar rises and diabetes develops.\n\nTesting fasting insulin catches metabolic dysfunction early, when lifestyle changes are most effective. It's a key marker in understanding your metabolic health beyond just blood sugar.","whatItMeasures":"This test measures the amount of insulin in your blood after fasting. Normal fasting insulin is typically 2-25 µIU/mL, with optimal levels below 10 µIU/mL. Higher levels suggest insulin resistance, even if blood sugar is still normal.","whoIsItFor":"Anyone with risk factors for diabetes (family history, overweight, PCOS, sedentary lifestyle), those with metabolic syndrome, people with high triglycerides or low HDL, and anyone wanting a deeper understanding of their metabolic health.","symptomsAddressed":["Weight gain (especially belly fat)","Difficulty losing weight","Sugar cravings","Fatigue after meals","Brain fog","Skin tags","Dark patches on skin"],"conditionsScreened":["Insulin resistance","Prediabetes","Type 2 diabetes risk","Metabolic syndrome","PCOS"],"whenToTest":"Test after fasting 10-12 hours. Best done in the morning. Can be combined with fasting glucose to calculate HOMA-IR (insulin resistance index).","preparationInstructions":"Fast for 10-12 hours before the test. Water is allowed. Avoid strenuous exercise the night before as it can temporarily affect insulin levels.","resultsOverview":"Optimal fasting insulin is below 10 µIU/mL. Levels of 10-25 may indicate early insulin resistance. Above 25 suggests significant insulin resistance. When combined with fasting glucose, your results can be used to calculate HOMA-IR for a more complete picture.","faqs":[{"question":"Why test insulin if my blood sugar is normal?","answer":"Insulin rises years before blood sugar does. High insulin with normal glucose is an early warning sign that your pancreas is working overtime. Catching this early allows intervention before diabetes develops."},{"question":"What is insulin resistance?","answer":"Insulin resistance means your cells don't respond well to insulin, so your pancreas makes more to compensate. This leads to weight gain, inflammation, and eventually high blood sugar."},{"question":"How can I lower my insulin levels?","answer":"Reducing refined carbs and sugar, regular exercise (especially strength training), adequate sleep, stress management, and maintaining a healthy weight all help improve insulin sensitivity."},{"question":"Should I test insulin along with glucose?","answer":"Yes! Testing both fasting insulin and fasting glucose together allows calculation of HOMA-IR, which is a better measure of insulin resistance than either test alone."}],"relatedTests":["glucose-fasting","hemoglobin-a1c","lipid-panel"],"createdBy":"script","name_es":"Insulina en Ayunas","biomarkers_es":["Insulina"],"whenToTest_es":"Analizar después de ayunar 10-12 horas. Mejor hacerlo en la mañana. Se puede combinar con glucosa en ayunas para calcular HOMA-IR (índice de resistencia a la insulina).","metaDescription_es":"Ordena una prueba de insulina en ayunas por $14. Detecta resistencia a la insulina temprano, antes de que suba el azúcar. Marcador clave para salud metabólica y prevención de diabetes.","preparationInstructions_es":"Ayunar por 10-12 horas antes de la prueba. Se permite agua. Evitar ejercicio extenuante la noche anterior ya que puede afectar temporalmente los niveles de insulina.","h1Title_es":"Prueba de Insulina en Ayunas","metaTitle_es":"Prueba de Insulina en Ayunas - $14 | Detección de Resistencia a Insulina | Justlabs","shortName_es":"Insulina en Ayunas","symptomsAddressed_es":["Aumento de peso (especialmente grasa abdominal)","Dificultad para perder peso","Antojos de azúcar","Fatiga después de comer","Niebla mental","Papilomas cutáneos","Manchas oscuras en la piel"],"whoIsItFor_es":"Cualquier persona con factores de riesgo para diabetes (historial familiar, sobrepeso, SOP, estilo de vida sedentario), aquellos con síndrome metabólico, personas con triglicéridos altos o HDL bajo, y cualquiera que quiera un entendimiento más profundo de su salud metabólica.","resultsOverview_es":"La insulina en ayunas óptima está por debajo de 10 µUI/mL. Niveles de 10-25 pueden indicar resistencia temprana a la insulina. Por encima de 25 sugiere resistencia significativa a la insulina. Cuando se combina con glucosa en ayunas, tus resultados pueden usarse para calcular HOMA-IR para una imagen más completa.","longDescription_es":"La insulina es la hormona que mueve la glucosa de tu sangre a tus células. Cuando las células se vuelven resistentes a la insulina, tu páncreas tiene que producir más para mantener el azúcar en sangre normal. Esta 'hiperinsulinemia' puede existir por años antes de que el azúcar en sangre suba y se desarrolle diabetes.\n\nAnalizar la insulina en ayunas detecta disfunción metabólica temprano, cuando los cambios de estilo de vida son más efectivos. Es un marcador clave para entender tu salud metabólica más allá del azúcar en sangre.","conditionsScreened_es":["Resistencia a la insulina","Prediabetes","Riesgo de diabetes tipo 2","Síndrome metabólico","SOP"],"description_es":"Mide los niveles de insulina en ayunas para evaluar resistencia a la insulina y salud metabólica. Importante para detección temprana de riesgo de diabetes.","shortSummary_es":"La insulina en ayunas mide cuánta insulina produce tu páncreas para controlar el azúcar en sangre - una señal de advertencia temprana de problemas metabólicos.","whatItMeasures_es":"Esta prueba mide la cantidad de insulina en tu sangre después del ayuno. La insulina en ayunas normal es típicamente 2-25 µUI/mL, con niveles óptimos por debajo de 10 µUI/mL. Niveles más altos sugieren resistencia a la insulina, incluso si el azúcar en sangre sigue siendo normal.","faqs_es":[{"question":"¿Por qué analizar insulina si mi azúcar en sangre es normal?","answer":"La insulina sube años antes que el azúcar en sangre. Insulina alta con glucosa normal es una señal de advertencia temprana de que tu páncreas está trabajando de más. Detectar esto temprano permite intervención antes de que se desarrolle diabetes."},{"question":"¿Qué es la resistencia a la insulina?","answer":"La resistencia a la insulina significa que tus células no responden bien a la insulina, así que tu páncreas produce más para compensar. Esto lleva a aumento de peso, inflamación y eventualmente azúcar alta en sangre."},{"question":"¿Cómo puedo bajar mis niveles de insulina?","answer":"Reducir carbohidratos refinados y azúcar, ejercicio regular (especialmente entrenamiento de fuerza), sueño adecuado, manejo del estrés y mantener un peso saludable ayudan a mejorar la sensibilidad a la insulina."},{"question":"¿Debo analizar insulina junto con glucosa?","answer":"¡Sí! Analizar tanto insulina en ayunas como glucosa en ayunas juntas permite calcular HOMA-IR, que es una mejor medida de resistencia a la insulina que cualquier prueba sola."}],"createdAt":{"_nanoseconds":953000000,"_seconds":1769634719},"cptCode":"83525"},{"id":"lipid-panel","questCode":"7600","name":"Lipid Panel (Standard)","shortName":"Lipid Panel","description":"Standard cholesterol panel including total cholesterol, HDL, LDL, and triglycerides. Essential for cardiovascular risk assessment.","category":"cardiovascular","price":8,"costPrice":5,"fastingRequired":true,"fastingHours":9,"labVendor":"Quest","biomarkers":["Triglycerides","Total Cholesterol","HDL Cholesterol","Non-HDL Cholesterol","Total Cholesterol / HDL Ratio","LDL Cholesterol (by calculation)"],"turnaroundDays":"1-2","popular":true,"sampleTypes":["serum"],"metaTitle":"Lipid Panel (Cholesterol Test) - $8 | Heart Screening | Justlabs","metaDescription":"Order a complete lipid panel for just $8. Measure total cholesterol, HDL, LDL, and triglycerides. Essential for heart disease prevention. Results in 1-2 days.","h1Title":"Lipid Panel - Complete Cholesterol Test","shortSummary":"The standard lipid panel measures your cholesterol and triglyceride levels - essential markers for assessing your risk of heart disease and stroke.","longDescription":"Heart disease remains the leading cause of death, but it's largely preventable. This lipid panel measures the key blood fats that contribute to cardiovascular risk:\n\n• Triglycerides\n• Total Cholesterol\n• HDL Cholesterol\n• Non-HDL Cholesterol\n• Total Cholesterol / HDL Ratio\n• LDL Cholesterol (by calculation)\n\nUnderstanding your numbers is the first step toward protecting your heart.","whatItMeasures":"This panel measures five key lipid markers: Total cholesterol (should be under 200 mg/dL), LDL cholesterol (optimal under 100 mg/dL), HDL cholesterol (higher is better, ideally over 60 mg/dL), Triglycerides (should be under 150 mg/dL).","whoIsItFor":"All adults over 20 should have a lipid panel at least every 5 years. More frequent testing is recommended for those with family history of heart disease, high blood pressure, diabetes, obesity, smokers, or anyone on cholesterol medication.\n {{article:lab-tests-for-hypertension}}    ","symptomsAddressed":["Most high cholesterol has no symptoms","Chest pain","Shortness of breath","Fatigue during exercise","Xanthomas (fatty deposits under skin)"],"conditionsScreened":["High cholesterol","Atherosclerosis","Heart disease risk","Familial hypercholesterolemia","Metabolic syndrome"],"whenToTest":"Fasting for 9-12 hours is required for accurate triglyceride and LDL measurements. Schedule morning tests for convenience. Test annually if you have risk factors, or every 5 years for healthy adults.","preparationInstructions":"Fast for 9-12 hours before your test (water is allowed). Avoid alcohol for 24 hours prior. If you forgot to fast, the test can still be done - just note it may affect triglyceride and LDL calculations.","resultsOverview":"Optimal levels: Total cholesterol <200, LDL <100 (or <70 if high risk), HDL >60, Triglycerides <150 mg/dL. Results include calculated ratios and risk indicators. High LDL and triglycerides or low HDL increase cardiovascular risk.","faqs":[{"question":"What's the difference between HDL and LDL cholesterol?","answer":"LDL (\"bad\") cholesterol deposits in artery walls, causing plaque buildup. HDL (\"good\") cholesterol helps remove LDL from arteries. You want low LDL and high HDL."},{"question":"Do I really need to fast?","answer":"Fasting for 9-12 hours is recommended for the most accurate LDL and triglyceride results. Non-fasting tests are still useful but may show higher triglycerides."},{"question":"How can I improve my cholesterol?","answer":"Diet changes (less saturated fat, more fiber), exercise, weight loss, and quitting smoking can all improve cholesterol. Some people also need medication."},{"question":"What if my cholesterol is high?","answer":"Work with your doctor on lifestyle changes and possibly medication. Repeat testing in 3-6 months to track progress. For very high levels, additional tests like ApoB may be recommended."}],"relatedTests":["apolipoprotein-b","lipoprotein-a","hs-crp","homocysteine"],"relatedPanels":["panel-wellness-comprehensive"],"name_es":"Panel de Lípidos","biomarkers_es":["Colesterol Total","HDL","LDL","Triglicéridos","VLDL"],"whenToTest_es":"Se requiere ayuno de 9-12 horas para resultados de triglicéridos y LDL más precisos. Programa para la mañana. El ayuno no es estrictamente necesario, pero los resultados de triglicéridos serán más altos sin ayuno.","metaDescription_es":"Ordena un panel de lípidos por solo $6. Incluye colesterol total, HDL, LDL y triglicéridos. Tamizaje esencial de salud cardíaca. Resultados en 1-2 días.","preparationInstructions_es":"Ayuna 9-12 horas (se permite y se recomienda agua). Evita el alcohol 24 horas antes. Continúa con los medicamentos como de costumbre a menos que tu médico indique lo contrario.","h1Title_es":"Panel de Lípidos (Prueba de Colesterol)","metaTitle_es":"Panel de Lípidos - $6 | Prueba de Colesterol | Justlabs","shortName_es":"Lípidos","symptomsAddressed_es":["Antecedentes familiares de enfermedad cardíaca","Tamizaje de salud de rutina","Monitoreo de tratamiento","Evaluación de riesgo cardiovascular"],"whoIsItFor_es":"Todos los adultos mayores de 20 años deben hacerse pruebas cada 4-6 años. Más frecuentemente si tienes antecedentes familiares de enfermedad cardíaca, factores de riesgo (diabetes, presión arterial alta, tabaquismo), o estás monitoreando tratamiento.","resultsOverview_es":"Objetivos: Colesterol Total <200, HDL >40 (hombres) o >50 (mujeres), LDL <100 (o <70 si es alto riesgo), Triglicéridos <150. La proporción Colesterol Total/HDL de <4 es ideal. Los triglicéridos altos a menudo acompañan la resistencia a la insulina.","longDescription_es":"El panel de lípidos es la prueba estándar para evaluar el riesgo de enfermedad cardíaca. Mide:\n\n• Colesterol Total - Todo el colesterol combinado\n• Colesterol HDL - El colesterol \"bueno\" que elimina el LDL\n• Colesterol LDL - El colesterol \"malo\" que puede obstruir las arterias\n• Triglicéridos - Grasas de los alimentos que comes\n\nLos niveles anormales de lípidos contribuyen a la aterosclerosis (arterias obstruidas), ataques cardíacos y derrames cerebrales. La detección temprana permite intervención antes de que ocurra daño.","conditionsScreened_es":["Riesgo de enfermedad cardíaca","Colesterol alto","Triglicéridos altos","Síndrome metabólico"],"description_es":"Mide el colesterol (total, HDL, LDL) y triglicéridos para evaluar el riesgo de enfermedad cardíaca.","shortSummary_es":"El panel de lípidos mide tu colesterol y triglicéridos - marcadores clave del riesgo de enfermedad cardíaca. Es una parte esencial del tamizaje de salud de rutina.","whatItMeasures_es":"Este panel mide 4 marcadores principales: Colesterol Total (deseable <200 mg/dL), HDL (más alto es mejor, >40 hombres, >50 mujeres), LDL (más bajo es mejor, <100 óptimo), y Triglicéridos (deseable <150 mg/dL). También incluye proporciones calculadas.","faqs_es":[{"question":"¿Por qué necesito ayunar para esta prueba?","answer":"Los triglicéridos suben después de comer, lo que afecta el cálculo del LDL. El ayuno proporciona resultados más consistentes. Sin embargo, las pruebas sin ayuno aún son valiosas - solo los triglicéridos y el LDL calculado serán afectados."},{"question":"¿Qué pasa si mi LDL está alto?","answer":"Primero, considera tu contexto general de riesgo. Los cambios de estilo de vida (dieta, ejercicio) a menudo ayudan. Si el riesgo es alto, pueden recomendarse estatinas. Considera pruebas adicionales como ApoB para una mejor evaluación del riesgo."},{"question":"¿Con qué frecuencia debo analizar mis lípidos?","answer":"Cada 4-6 años para adultos de bajo riesgo. Anualmente si tienes factores de riesgo o estás en tratamiento. Más frecuentemente al ajustar medicamentos o hacer cambios significativos de estilo de vida."}],"cptCode":"80061"},{"id":"lipid-panel-cardio-iq","questCode":"91716","name":"Lipid Panel, Cardio IQ","shortName":"Cardio IQ Lipid","description":"Advanced lipid panel with more detailed cardiovascular risk markers.","category":"cardiovascular","price":8,"costPrice":5,"fastingRequired":true,"fastingHours":9,"labVendor":"Quest","biomarkers":["Triglycerides","Total Cholesterol","HDL Cholesterol","LDL Cholesterol","Non-HDL Cholesterol","Total Cholesterol / HDL Ratio"],"turnaroundDays":"1-2","sampleTypes":["serum"],"symptomsAddressed":["Cardiovascular risk assessment","High cholesterol concerns","Family history of heart disease","Monitoring cholesterol treatment"],"relatedTests":["apolipoprotein-b","hscrp","homocysteine","lipoprotein-a"],"whoIsItFor":"Anyone wanting a thorough assessment of their cholesterol and cardiovascular risk. Especially valuable for those with a family history of heart disease, people with high blood pressure, diabetics or prediabetics, anyone with elevated triglycerides, those monitoring the effects of diet or statin therapy, and individuals with metabolic syndrome.\n\n{{article:lab-tests-for-hypertension}}","conditionsScreened":["High cholesterol","Cardiovascular disease risk","Metabolic syndrome","Hypertriglyceridemia","Dyslipidemia"],"relatedPanels":["panel-heart-health","panel-inflammation"],"h1Title":"Cardio IQ Lipid Panel - Advanced Cholesterol Test","resultsOverview":"**Quick interpretation guide:**\n\n| Marker | Optimal | Borderline | High Risk |\n|--------|---------|------------|----------|\n| Total Cholesterol | <200 | 200-239 | ≥240 |\n| LDL | <100 | 100-159 | ≥160 |\n| HDL | >60 | 40-59 | <40 |\n| Triglycerides | <150 | 150-199 | ≥200 |\n| Non-HDL | <130 | 130-159 | ≥160 |\n\n**Key ratios to consider:**\n- Total/HDL ratio: Optimal <4, ideal <3.5\n- Triglyceride/HDL ratio: Optimal <2 (marker of insulin resistance)","preparationInstructions":"Fast for 9-12 hours before your blood draw - no food, only water and black coffee. Avoid alcohol for 24 hours before testing as it significantly affects triglycerides. Take medications as usual unless your doctor advises otherwise. Avoid intense exercise the day before.","name_es":"Panel de Lípidos, Cardio IQ","biomarkers_es":["Colesterol Total","HDL","LDL","Triglicéridos","VLDL","Colesterol No-HDL"],"description_es":"Panel de lípidos avanzado con marcadores de riesgo cardiovascular más detallados.","shortName_es":"Lípidos Cardio IQ","whenToTest_es":"Se requiere ayuno de 9-12 horas para mediciones precisas de triglicéridos y VLDL. Agua y café negro (sin crema ni azúcar) están permitidos. Las citas matutinas funcionan mejor. Para monitoreo, analice cada 3-6 meses al iniciar tratamiento, luego anualmente una vez estable.","longDescription_es":"El Panel de Lípidos Cardio IQ proporciona una evaluación más detallada de su perfil de colesterol que un panel lipídico estándar. Además de lo básico (colesterol total, HDL, LDL, triglicéridos), incluye **colesterol VLDL** y **colesterol No-HDL** - marcadores que dan una visión más profunda de su riesgo cardiovascular.\n\n**El colesterol No-HDL** es cada vez más reconocido como un mejor predictor de enfermedad cardíaca que el LDL solo porque captura todas las partículas de colesterol \"malo\" (LDL + VLDL + otras lipoproteínas aterogénicas).\n\n**VLDL (Lipoproteína de Muy Baja Densidad)** transporta triglicéridos a través de su torrente sanguíneo. El VLDL elevado está asociado con mayor riesgo cardiovascular y a menudo se correlaciona con el síndrome metabólico.\n\nCon solo $7, este panel ofrece un valor excepcional para la detección cardiovascular completa.","conditionsScreened_es":["Colesterol alto","Riesgo de enfermedad cardiovascular","Síndrome metabólico","Hipertrigliceridemia","Dislipidemia"],"shortSummary_es":"Un panel de colesterol completo que va más allá de las pruebas lipídicas básicas. Incluye colesterol VLDL y No-HDL para una imagen más completa de su riesgo cardiovascular.","whatItMeasures_es":"Este panel mide seis marcadores lipídicos:\n\n- **Colesterol Total**: Suma de todo el colesterol (óptimo: <200 mg/dL)\n- **HDL (Colesterol \"Bueno\")**: Colesterol protector que elimina el LDL de las arterias (óptimo: >60 mg/dL)\n- **LDL (Colesterol \"Malo\")**: Principal causante de placa arterial (óptimo: <100 mg/dL)\n- **Triglicéridos**: Grasa en su sangre, elevada por azúcar/carbohidratos (óptimo: <150 mg/dL)\n- **Colesterol VLDL**: Transporta triglicéridos, contribuye a la placa (óptimo: <30 mg/dL)\n- **Colesterol No-HDL**: Colesterol total menos HDL - captura todas las partículas aterogénicas (óptimo: <130 mg/dL)","symptomsAddressed_es":["Evaluación de riesgo cardiovascular","Preocupaciones por colesterol alto","Antecedentes familiares de enfermedad cardíaca","Monitoreo de tratamiento de colesterol"],"whoIsItFor_es":"Cualquier persona que desee una evaluación completa de su colesterol y riesgo cardiovascular. Especialmente valioso para aquellos con antecedentes familiares de enfermedad cardíaca, personas con presión arterial alta, diabéticos o prediabéticos, cualquier persona con triglicéridos elevados, quienes monitorean los efectos de la dieta o terapia con estatinas, e individuos con síndrome metabólico.","faqs_es":[{"question":"¿Cuál es la diferencia entre este y un panel lipídico regular?","answer":"Un panel lipídico estándar incluye colesterol total, HDL, LDL y triglicéridos. El Cardio IQ agrega colesterol VLDL y No-HDL, dándole dos marcadores adicionales que muchos cardiólogos consideran más predictivos del riesgo de enfermedad cardíaca que el LDL solo."},{"question":"¿Por qué es importante el colesterol No-HDL?","answer":"El colesterol No-HDL captura TODAS las partículas aterogénicas (causantes de placa) - no solo el LDL. Esto incluye VLDL y otras partículas remanentes que el LDL solo no detecta. Muchas guías ahora recomiendan el No-HDL como objetivo principal de tratamiento, especialmente para personas con triglicéridos altos."},{"question":"¿Qué pasa si mi LDL es normal pero el No-HDL es alto?","answer":"Esto es común cuando los triglicéridos están elevados. Significa que tiene colesterol significativo transportado en VLDL y otras partículas más allá del LDL. Este riesgo residual debe abordarse - a menudo a través de cambios en el estilo de vida, reducción de triglicéridos o terapia adicional."},{"question":"¿Realmente necesito ayunar para esta prueba?","answer":"Sí, el ayuno es importante para este panel. Mientras que el colesterol total, HDL y LDL se ven mínimamente afectados por los alimentos, los triglicéridos y VLDL pueden aumentar significativamente después de comer - potencialmente duplicándose o triplicándose. Los resultados sin ayuno hacen que estos marcadores sean poco confiables."},{"question":"¿Con qué frecuencia debo revisar mi colesterol?","answer":"Los adultos deben revisarse al menos cada 5 años. Si tiene factores de riesgo (antecedentes familiares, diabetes, presión arterial alta, tabaquismo), revísese anualmente. Si toma medicamentos para el colesterol, revísese cada 3-6 meses inicialmente, luego anualmente una vez en la meta."}],"cptCode":"80061","metaTitle":"Cardio IQ Lipid Panel - $8 | Advanced Cholesterol Test | Justlabs","shortSummary":"A comprehensive cholesterol panel that goes beyond basic lipid testing. Includes total, HDL, and Non-HDL cholesterol for a more complete picture of your cardiovascular risk.","whatItMeasures":"This panel measures six lipid markers:\n\n- **Total Cholesterol**: Sum of all cholesterol (optimal: <200 mg/dL)\n- **HDL (\"Good\" Cholesterol)**: Protective cholesterol that removes LDL from arteries (optimal: >60 mg/dL)\n- **LDL (\"Bad\" Cholesterol)**: Primary driver of arterial plaque (optimal: <100 mg/dL)\n- **Triglycerides**: Fat in your blood, elevated by sugar/carbs (optimal: <150 mg/dL)\n- **Non-HDL Cholesterol**: Total cholesterol minus HDL - captures all atherogenic particles (optimal: <130 mg/dL)","metaDescription":"Order a Cardio IQ Lipid Panel for $8. Comprehensive cholesterol testing including HDL, LDL, triglycerides, and Non-HDL cholesterol. Fasting required. Results in 1-2 days.","longDescription":"The Cardio IQ Lipid Panel provides an essential assessment of your cholesterol profile and is widely used to help detect, classify, and monitor hyperlipidemia, a condition characterized by elevated levels of fats in the blood. It includes key markers such as **Total Cholesterol**, **HDL Cholesterol**, **LDL Cholesterol**, **Triglycerides**, **Non-HDL Cholesterol**, and **Total Cholesterol / HDL Ratio**.\n\n**Non-HDL cholesterol** is an important marker for understanding cardiovascular risk because it captures cholesterol carried by potentially atherogenic particles beyond LDL alone.\n\nAt just $8, this panel offers excellent value for routine cardiovascular screening.","faqs":[{"question":"What is the difference between this and a regular lipid panel?","answer":"A standard lipid panel includes total cholesterol, HDL, LDL, and triglycerides. The Cardio IQ adds  Non-HDL cholesterol, giving you additional markers that many cardiologists consider more predictive of heart disease risk than LDL alone."},{"question":"Why is Non-HDL cholesterol important?","answer":"Non-HDL cholesterol captures ALL atherogenic (plaque-causing) particles - not just LDL. This includes remnant particles that LDL alone misses. Many guidelines now recommend Non-HDL as a primary treatment target, especially for people with high triglycerides."},{"question":"What if my LDL is normal but Non-HDL is high?","answer":"This can happen when triglycerides or other atherogenic cholesterol particles are elevated. It means you may have cholesterol carried in particles beyond LDL alone. This broader cardiovascular risk should be reviewed with your healthcare provider and may be addressed through lifestyle changes, triglyceride management, or other treatment options when appropriate."},{"question":"Do I really need to fast for this test?","answer":"Yes, fasting is important for this panel. While total cholesterol, HDL, and LDL are only minimally affected by food, triglycerides can rise significantly after eating. Because triglycerides are part of the lipid assessment, non-fasting results may be less reliable."},{"question":"How often should I check my cholesterol?","answer":"Adults should check at least every 5 years. If you have risk factors (family history, diabetes, high blood pressure, smoking), check annually. If on cholesterol medication, check every 3-6 months initially, then annually once at goal."}],"whenToTest":"Fasting for 9-12 hours is required for accurate triglyceride measurements. Water and black coffee (no cream or sugar) are fine. Morning appointments work best. For monitoring, test every 3-6 months when starting treatment, then annually once stable."},{"id":"apolipoprotein-b","questCode":"5224","name":"Apolipoprotein B","shortName":"ApoB","description":"Measures ApoB protein found on LDL particles. Better predictor of cardiovascular risk than LDL-C alone.","category":"cardiovascular","price":25,"costPrice":18,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Apolipoprotein B"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Apolipoprotein B (ApoB) Test - $25 | Advanced Heart Health | Justlabs","metaDescription":"Order an Apolipoprotein B test for $25. ApoB is a better predictor of cardiovascular risk than LDL cholesterol. No fasting required. Results in 2-3 days.","h1Title":"Apolipoprotein B (ApoB) Blood Test","shortSummary":"ApoB measures the number of atherogenic (artery-clogging) particles in your blood, providing a more accurate cardiovascular risk assessment than standard LDL cholesterol.","longDescription":"Apolipoprotein B is a protein found on every atherogenic lipoprotein particle - that's every particle capable of depositing cholesterol in your arteries. While standard LDL-C measures cholesterol content, ApoB counts the actual number of dangerous particles.\n\nThis matters because two people with identical LDL-C can have very different particle counts. Someone with many small, dense LDL particles (higher ApoB) has greater cardiovascular risk than someone with fewer, larger particles - even with the same LDL cholesterol number. ApoB is increasingly recognized as the best single marker of cardiovascular risk.","whatItMeasures":"This test measures the concentration of Apolipoprotein B protein in mg/dL. Since each atherogenic particle has exactly one ApoB molecule, the result reflects your total number of harmful particles. Optimal ApoB is generally below 80 mg/dL, with below 65 mg/dL ideal for high-risk individuals.","whoIsItFor":"Anyone wanting the most accurate assessment of cardiovascular risk. Especially valuable for people with metabolic syndrome, diabetes, high triglycerides, or those whose LDL cholesterol seems inconsistent with their risk. Also useful for monitoring statin therapy effectiveness.","symptomsAddressed":["Elevated cholesterol","Family history of heart disease","Metabolic syndrome","Insulin resistance","Discordant lipid results","Treatment monitoring"],"conditionsScreened":["Cardiovascular disease risk","Atherogenic dyslipidemia","Metabolic syndrome","Familial hypercholesterolemia","Response to lipid therapy"],"whenToTest":"No fasting required (ApoB is minimally affected by food). Test as part of comprehensive cardiovascular assessment, especially if you have metabolic syndrome, diabetes, or discordant lipid results.","resultsOverview":"Lower is better. Optimal: <80 mg/dL for most adults. High risk individuals (diabetes, established cardiovascular disease): target <65 mg/dL. Very high risk: consider <55 mg/dL. ApoB is considered by many experts to be superior to LDL-C for assessing and managing cardiovascular risk.","faqs":[{"answer":"LDL-C measures cholesterol content, but ApoB counts actual harmful particles. Two people can have the same LDL-C but different particle counts. More particles = more chances for cholesterol to deposit in arteries. ApoB captures this directly.","question":"Why is ApoB better than LDL cholesterol?"},{"answer":"No, ApoB doesn't require fasting. Unlike triglycerides and calculated LDL-C, ApoB remains stable after eating, making it more convenient and reliable.","question":"Do I need to fast for ApoB?"},{"answer":"ApoB complements a standard lipid panel rather than replacing it. Together, they provide a complete picture. ApoB is especially valuable when lipid panel results seem discordant with risk factors.","question":"Should I get ApoB instead of a lipid panel?"}],"relatedTests":["lipid-panel","lipoprotein-a","hs-crp","apoe-genotype"],"name_es":"Apolipoproteína B","biomarkers_es":["Apolipoproteína B"],"whenToTest_es":"No se requiere ayuno (a diferencia del panel de lípidos estándar). La ApoB permanece estable después de comer, lo que la hace más conveniente y confiable.","metaDescription_es":"Ordena una prueba de ApoB por $20. Mejor predictor de riesgo cardiovascular que el colesterol LDL. Sin ayuno necesario. Resultados en 2-3 días.","h1Title_es":"Análisis de Sangre de Apolipoproteína B (ApoB)","metaTitle_es":"Prueba de Apolipoproteína B (ApoB) - $20 | Salud Cardíaca Avanzada | Justlabs","shortName_es":"ApoB","symptomsAddressed_es":["Colesterol elevado","Antecedentes familiares de enfermedad cardíaca","Síndrome metabólico","Resistencia a la insulina"],"whoIsItFor_es":"Cualquier persona que desee la evaluación más precisa de riesgo cardiovascular, personas con síndrome metabólico o diabetes, quienes tienen resultados de lípidos discordantes, personas monitoreando terapia con estatinas, y aquellos con antecedentes familiares de enfermedad cardíaca.","resultsOverview_es":"Más bajo es mejor. Óptimo: <80 mg/dL. Si ya tienes enfermedad cardíaca o diabetes, el objetivo es <65 mg/dL. La ApoB se considera superior al LDL-C para evaluar y manejar el riesgo cardiovascular.","longDescription_es":"La Apolipoproteína B es la proteína principal en las partículas LDL (y otras partículas aterogénicas). Cada partícula tiene exactamente una molécula de ApoB, así que medir ApoB efectivamente cuenta las partículas.\n\n¿Por qué importa esto? Dos personas con el mismo LDL-C pueden tener números muy diferentes de partículas. Más partículas = más riesgo, incluso con el mismo contenido de colesterol. La ApoB es cada vez más reconocida como el mejor marcador único de riesgo cardiovascular.","conditionsScreened_es":["Riesgo de enfermedad cardiovascular","Dislipidemia aterogénica","Síndrome metabólico","Hipercolesterolemia familiar"],"description_es":"Mide la proteína ApoB en partículas LDL. Mejor predictor de riesgo cardiovascular que el colesterol LDL solo.","shortSummary_es":"La ApoB cuenta el número real de partículas dañinas en tu sangre - una medida más precisa del riesgo de enfermedad cardíaca que el colesterol LDL estándar. Cada partícula aterogénica tiene exactamente una molécula de ApoB.","whatItMeasures_es":"Esta prueba mide la concentración de Apolipoproteína B en mg/dL. Óptimo: <80 mg/dL (población general). Alto riesgo: <65 mg/dL. Muy alto riesgo: <55 mg/dL.","cptCode":"82172"},{"id":"lipoprotein-a","questCode":"34604","name":"Lipoprotein(a)","shortName":"Lp(a)","description":"Genetic marker for cardiovascular risk. Elevated Lp(a) increases risk of heart disease independent of LDL.","category":"cardiovascular","price":21,"costPrice":16,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Lipoprotein(a)"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Lipoprotein(a) Test - $21 | Genetic Heart Risk Marker | Justlabs","metaDescription":"Order a Lipoprotein(a) blood test for $21. Genetic marker that predicts heart disease risk independent of LDL cholesterol. No fasting required. Results in 2-3 days.","h1Title":"Lipoprotein(a) [Lp(a)] Blood Test","shortSummary":"Lipoprotein(a) is a genetically determined cardiovascular risk factor. Elevated Lp(a) increases your risk of heart disease, stroke, and aortic valve disease independent of LDL cholesterol.","longDescription":"Lipoprotein(a), or Lp(a), is a cholesterol-carrying particle similar to LDL but with an additional protein called apolipoprotein(a) attached. Your Lp(a) level is largely determined by your genetics and remains stable throughout your life.\n\nWhat makes Lp(a) important:\n- It's an independent risk factor for heart disease, stroke, and aortic stenosis\n- 20-30% of people have elevated Lp(a), often without knowing\n- It's not included in standard lipid panels, so it requires specific testing\n- High Lp(a) can explain heart disease even when LDL appears controlled\n- It has both atherogenic (plaque-building) and thrombotic (clot-promoting) effects\n\nThe European Atherosclerosis Society and American Heart Association recommend that everyone get their Lp(a) tested at least once in their lifetime, as it's a valuable piece of your cardiovascular risk puzzle that standard cholesterol testing misses.","whatItMeasures":"This test measures the concentration of Lp(a) in your blood, typically reported in mg/dL or nmol/L. Desirable: <30 mg/dL (<75 nmol/L). Borderline: 30-50 mg/dL (75-125 nmol/L). Elevated: >50 mg/dL (>125 nmol/L). Very high Lp(a) can exceed 100 mg/dL (250 nmol/L).","whoIsItFor":"Everyone should test Lp(a) at least once (per current guidelines). Especially important for people with family history of early heart disease, those with heart disease despite normal LDL, individuals with familial hypercholesterolemia, and anyone wanting a complete cardiovascular risk assessment.","symptomsAddressed":["No symptoms (screening test)","Family history of early heart disease","Personal history of heart disease or stroke","Unexplained cardiovascular events","High LDL despite lifestyle changes"],"conditionsScreened":["Cardiovascular disease risk","Familial elevated Lp(a)","Aortic valve stenosis risk","Stroke risk","Peripheral artery disease risk","Familial hypercholesterolemia evaluation"],"whenToTest":"No fasting required. Since Lp(a) is genetically determined and stable throughout life, you typically only need to test once. Repeat testing is only needed if your first result was borderline or if you start Lp(a)-lowering therapy (currently limited options).","resultsOverview":"Lp(a) <30 mg/dL (<75 nmol/L) is considered desirable. Levels >50 mg/dL (>125 nmol/L) significantly increase cardiovascular risk. Very high levels (>100 mg/dL) may warrant aggressive management of other risk factors. Unlike LDL, lifestyle changes have minimal effect on Lp(a).","faqs":[{"question":"Why isn't Lp(a) included in standard lipid panels?","answer":"Standard lipid panels measure total cholesterol, LDL, HDL, and triglycerides. Lp(a) requires a separate test. Guidelines now recommend everyone get tested once, but it's not yet routine practice everywhere. Many people with elevated Lp(a) don't know it."},{"question":"Can I lower my Lp(a)?","answer":"Unlike LDL, Lp(a) is largely genetic and doesn't respond much to diet, exercise, or statins. Niacin can modestly reduce Lp(a). New therapies targeting Lp(a) specifically are in development. If your Lp(a) is high, focus on optimizing other risk factors."},{"question":"If Lp(a) is genetic, why test it?","answer":"Knowing your Lp(a) helps determine your true cardiovascular risk. If Lp(a) is high, you may need more aggressive treatment of other risk factors (LDL, blood pressure). It also explains why some people have heart disease despite \"normal\" cholesterol."},{"question":"How does Lp(a) compare to ApoB?","answer":"Both are advanced cardiovascular markers. ApoB counts all atherogenic particles (including LDL and Lp(a)). Lp(a) specifically measures this genetically determined, high-risk particle. Testing both gives the most complete picture."}],"relatedTests":["lipid-panel","apob","hs-crp","homocysteine"],"createdBy":"script","name_es":"Lipoproteína(a)","biomarkers_es":["Lipoproteína(a)"],"whenToTest_es":"No se requiere ayuno. Dado que la Lp(a) está determinada genéticamente y es estable durante toda la vida, típicamente solo necesitas analizarla una vez. La repetición solo es necesaria si tu primer resultado fue límite.","metaDescription_es":"Ordena una prueba de Lipoproteína(a) por $18. Marcador genético que predice riesgo de enfermedad cardíaca independiente del colesterol LDL. No requiere ayuno. Resultados en 2-3 días.","h1Title_es":"Prueba de Lipoproteína(a) [Lp(a)]","metaTitle_es":"Prueba de Lipoproteína(a) - $18 | Marcador Genético de Riesgo Cardíaco | Justlabs","shortName_es":"Lp(a)","symptomsAddressed_es":["Sin síntomas (prueba de detección)","Historial familiar de enfermedad cardíaca temprana","Historial personal de enfermedad cardíaca o accidente cerebrovascular","Eventos cardiovasculares inexplicables","LDL alto a pesar de cambios de estilo de vida"],"whoIsItFor_es":"Todos deberían analizarse la Lp(a) al menos una vez (según las guías actuales). Especialmente importante para personas con historial familiar de enfermedad cardíaca temprana, aquellos con enfermedad cardíaca a pesar de LDL normal, individuos con hipercolesterolemia familiar, y cualquiera que quiera una evaluación completa de riesgo cardiovascular.","resultsOverview_es":"Lp(a) <30 mg/dL (<75 nmol/L) se considera deseable. Niveles >50 mg/dL (>125 nmol/L) aumentan significativamente el riesgo cardiovascular. Niveles muy altos (>100 mg/dL) pueden justificar manejo agresivo de otros factores de riesgo. A diferencia del LDL, los cambios de estilo de vida tienen efecto mínimo en la Lp(a).","longDescription_es":"La lipoproteína(a), o Lp(a), es una partícula transportadora de colesterol similar al LDL pero con una proteína adicional llamada apolipoproteína(a) adjunta. Tu nivel de Lp(a) está determinado en gran parte por tu genética y permanece estable durante toda tu vida.\n\nLo que hace importante a la Lp(a):\n- Es un factor de riesgo independiente para enfermedad cardíaca, accidente cerebrovascular y estenosis aórtica\n- El 20-30% de las personas tienen Lp(a) elevada, a menudo sin saberlo\n- No está incluida en paneles de lípidos estándar, por lo que requiere pruebas específicas\n- La Lp(a) alta puede explicar enfermedad cardíaca incluso cuando el LDL parece controlado\n- Tiene efectos tanto aterogénicos (formación de placa) como trombóticos (promoción de coágulos)\n\nLa Sociedad Europea de Aterosclerosis y la Asociación Americana del Corazón recomiendan que todos se analicen la Lp(a) al menos una vez en su vida.","conditionsScreened_es":["Riesgo de enfermedad cardiovascular","Lp(a) elevada familiar","Riesgo de estenosis de válvula aórtica","Riesgo de accidente cerebrovascular","Riesgo de enfermedad arterial periférica","Evaluación de hipercolesterolemia familiar"],"description_es":"Marcador genético de riesgo cardiovascular. La Lp(a) elevada aumenta el riesgo de enfermedad cardíaca independiente del LDL.","shortSummary_es":"La lipoproteína(a) es un factor de riesgo cardiovascular determinado genéticamente. La Lp(a) elevada aumenta tu riesgo de enfermedad cardíaca, accidente cerebrovascular y enfermedad de válvula aórtica independiente del colesterol LDL.","whatItMeasures_es":"Esta prueba mide la concentración de Lp(a) en tu sangre, típicamente reportada en mg/dL o nmol/L. Deseable: <30 mg/dL (<75 nmol/L). Límite: 30-50 mg/dL (75-125 nmol/L). Elevado: >50 mg/dL (>125 nmol/L).","faqs_es":[{"question":"¿Por qué la Lp(a) no está incluida en paneles de lípidos estándar?","answer":"Los paneles de lípidos estándar miden colesterol total, LDL, HDL y triglicéridos. La Lp(a) requiere una prueba separada. Las guías ahora recomiendan que todos se analicen una vez, pero aún no es práctica rutinaria en todas partes."},{"question":"¿Puedo bajar mi Lp(a)?","answer":"A diferencia del LDL, la Lp(a) es en gran parte genética y no responde mucho a dieta, ejercicio o estatinas. La niacina puede reducir modestamente la Lp(a). Si tu Lp(a) es alta, enfócate en optimizar otros factores de riesgo."},{"question":"Si la Lp(a) es genética, ¿por qué analizarla?","answer":"Conocer tu Lp(a) ayuda a determinar tu verdadero riesgo cardiovascular. Si la Lp(a) es alta, puedes necesitar tratamiento más agresivo de otros factores de riesgo. También explica por qué algunas personas tienen enfermedad cardíaca a pesar de colesterol 'normal'."},{"question":"¿Cómo se compara la Lp(a) con ApoB?","answer":"Ambos son marcadores cardiovasculares avanzados. ApoB cuenta todas las partículas aterogénicas (incluyendo LDL y Lp(a)). La Lp(a) mide específicamente esta partícula de alto riesgo determinada genéticamente. Analizar ambas da la imagen más completa."}],"createdAt":{"_nanoseconds":101000000,"_seconds":1769634720},"cptCode":"83695"},{"id":"hs-crp","questCode":"10124","name":"High-Sensitivity CRP","shortName":"hs-CRP","description":"Measures inflammation marker associated with cardiovascular disease risk. Low-grade inflammation indicator.","category":"inflammation","price":15,"costPrice":11,"fastingRequired":false,"labVendor":"Quest","biomarkers":["hs-CRP"],"turnaroundDays":"1-2","popular":true,"sampleTypes":["serum"],"metaTitle":"hs-CRP Test - $15 | Heart Inflammation Marker | Justlabs","metaDescription":"Order a High-Sensitivity CRP test for $15. Measures inflammation linked to heart disease risk. No fasting required. Results in 1-2 days.","h1Title":"High-Sensitivity CRP (hs-CRP) Blood Test","shortSummary":"A sensitive test that measures low levels of C-reactive protein, an inflammation marker associated with cardiovascular disease risk.","longDescription":"High-Sensitivity CRP (hs-CRP) is a blood test that measures very low levels of C-reactive protein, an inflammation marker produced by the liver. Unlike standard CRP tests used for acute infections, hs-CRP detects the low-grade chronic inflammation associated with cardiovascular disease.\n\nResearch shows that elevated hs-CRP is an independent predictor of heart attacks, strokes, and cardiovascular death - even in people with normal cholesterol levels. The American Heart Association recognizes hs-CRP as a useful marker for cardiovascular risk assessment.\n\nChronic inflammation plays a key role in atherosclerosis (plaque buildup in arteries). By measuring hs-CRP alongside traditional risk factors like cholesterol, you get a more complete picture of your cardiovascular health.","whatItMeasures":"This test measures C-reactive protein at very low concentrations (high-sensitivity assay). CRP is produced by the liver in response to inflammation throughout the body. The hs-CRP specifically detects the low-grade inflammation associated with cardiovascular risk.","whoIsItFor":"Adults assessing cardiovascular risk, people with intermediate heart disease risk (10-20% 10-year risk), those with family history of heart disease, individuals wanting to complement lipid panel results, and anyone monitoring inflammatory conditions.","symptomsAddressed":["No symptoms (cardiovascular screening)","General wellness assessment","Monitoring chronic inflammation"],"conditionsScreened":["Cardiovascular disease risk","Chronic inflammation","Metabolic syndrome","Diabetes-related cardiovascular risk"],"whenToTest":"No fasting required. Avoid testing during acute illness, infection, or injury as these cause temporary CRP elevation. Wait 2 weeks after illness for accurate baseline results.","resultsOverview":"Risk categories: <1.0 mg/L = Lower cardiovascular risk, 1.0-3.0 mg/L = Average risk, >3.0 mg/L = Higher risk. Values >10 mg/L suggest acute inflammation (infection, injury) rather than chronic risk and should be retested.","faqs":[{"question":"How is hs-CRP different from regular CRP?","answer":"Regular CRP measures higher levels associated with acute infection or inflammation. hs-CRP uses a more sensitive assay to detect the very low levels associated with cardiovascular risk - it's the same protein, just measured more precisely."},{"question":"Can I lower my hs-CRP?","answer":"Yes. Lifestyle changes like exercise, weight loss, smoking cessation, and a healthy diet can lower hs-CRP. Statins also reduce CRP levels. Lowering hs-CRP may reduce cardiovascular risk."},{"question":"Should I get hs-CRP or a lipid panel?","answer":"Both provide different information. Lipid panels measure cholesterol; hs-CRP measures inflammation. Together they give a more complete cardiovascular risk picture. The AHA suggests hs-CRP may help with treatment decisions in intermediate-risk individuals."},{"question":"What causes elevated hs-CRP?","answer":"Chronic conditions like obesity, diabetes, smoking, and periodontal disease elevate hs-CRP. Acute causes include infection, injury, and recent surgery. Some people have genetically higher CRP levels."}],"relatedTests":["lipid-panel","homocysteine","hemoglobin-a1c","apob"],"createdBy":"script","name_es":"hs-CRP (Proteína C-Reactiva de Alta Sensibilidad)","biomarkers_es":["hs-CRP"],"whenToTest_es":"No se requiere ayuno. Evita analizarte durante enfermedad aguda, infección o lesión - espera 2 semanas para resultados basales precisos.","metaDescription_es":"Ordena una prueba de hs-CRP por $14. El estándar de oro para medir la inflamación relacionada con enfermedad cardíaca. Resultados en 1-2 días.","h1Title_es":"Análisis de Sangre de hs-CRP (Inflamación)","metaTitle_es":"Prueba de hs-CRP - $14 | Marcador de Inflamación | Justlabs","shortName_es":"hs-CRP","symptomsAddressed_es":["Evaluación de riesgo cardiovascular","Dolor crónico","Fatiga","Monitoreo de inflamación"],"whoIsItFor_es":"Cualquier persona evaluando riesgo cardiovascular, quienes tienen factores de riesgo de enfermedad cardíaca, personas con síndrome metabólico o diabetes, quienes desean monitorear los efectos de cambios de estilo de vida antiinflamatorios, y cualquiera con inflamación crónica.","resultsOverview_es":"Bajo riesgo: <1.0 mg/L. Riesgo promedio: 1.0-3.0 mg/L. Alto riesgo: >3.0 mg/L. Si >3.0, repite la prueba en 2 semanas para confirmar que no hay infección. La hs-CRP elevada persistente amerita modificación del estilo de vida o intervención médica.","longDescription_es":"La Proteína C-Reactiva de Alta Sensibilidad (hs-CRP) es un marcador de inflamación sistémica producido por el hígado. A diferencia de la CRP estándar (usada para detectar infección), la hs-CRP mide niveles muy bajos de inflamación crónica.\n\nLa inflamación crónica de bajo grado:\n• Acelera la aterosclerosis\n• Aumenta el riesgo de ataque cardíaco y derrame\n• Se asocia con múltiples enfermedades crónicas\n• Es a menudo silenciosa (sin síntomas)","conditionsScreened_es":["Riesgo cardiovascular","Inflamación crónica","Síndrome metabólico"],"description_es":"Mide la inflamación de bajo grado asociada con riesgo cardiovascular. Más sensible que la CRP estándar.","shortSummary_es":"La hs-CRP mide la inflamación de bajo grado que impulsa la enfermedad cardíaca, el cáncer y otras enfermedades crónicas. Es el estándar de oro para evaluar el riesgo inflamatorio cardiovascular.","whatItMeasures_es":"Esta prueba mide la Proteína C-Reactiva usando un ensayo de alta sensibilidad. Bajo riesgo: <1.0 mg/L. Riesgo promedio: 1.0-3.0 mg/L. Alto riesgo: >3.0 mg/L. Valores >10 mg/L sugieren inflamación aguda (infección).","createdAt":{"_nanoseconds":209000000,"_seconds":1769634720},"cptCode":"86141"},{"id":"homocysteine","questCode":"31789","name":"Homocysteine","shortName":"Homocysteine","description":"Amino acid linked to cardiovascular risk when elevated. Also indicates B vitamin status.","category":"cardiovascular","price":23,"costPrice":19.44,"fastingRequired":true,"fastingHours":8,"labVendor":"Quest","biomarkers":["Homocysteine"],"turnaroundDays":"2-3","sampleTypes":["serum","plasma"],"metaTitle":"Homocysteine Test - $21 | Heart & B Vitamin Marker | Justlabs","metaDescription":"Order a Homocysteine blood test for $21. Measures amino acid linked to heart disease and B vitamin deficiency. Fasting required. Results in 2-3 days.","h1Title":"Homocysteine Blood Test","shortSummary":"A blood test measuring homocysteine, an amino acid linked to cardiovascular risk and B vitamin status (B12, folate, B6).","longDescription":"Homocysteine is an amino acid that your body produces during protein metabolism. Normally, homocysteine is converted to other compounds using B vitamins (B12, folate, and B6). When these vitamins are deficient or when genetic factors interfere, homocysteine levels rise.\n\nElevated homocysteine (hyperhomocysteinemia) is associated with increased cardiovascular risk, blood clots, stroke, and cognitive decline. It may damage blood vessel walls and promote clot formation.\n\nThis test serves two purposes: assessing cardiovascular risk and detecting B vitamin deficiency. High homocysteine is often easily treatable with B vitamin supplementation.","whatItMeasures":"This test measures the concentration of homocysteine in your blood. Homocysteine is an amino acid produced when protein is metabolized. Elevated levels indicate either B vitamin deficiency (most common cause), genetic factors (MTHFR mutations), or increased cardiovascular risk.","whoIsItFor":"People with family history of early heart disease, those with unexplained blood clots, individuals with B12 or folate deficiency risk, people following vegan/vegetarian diets, those with MTHFR gene mutations, and anyone assessing cardiovascular risk factors.","symptomsAddressed":["Fatigue (B vitamin deficiency)","Cognitive decline","Unexplained blood clots","Family history of heart disease","No symptoms (cardiovascular screening)"],"conditionsScreened":["Cardiovascular disease risk","Vitamin B12 deficiency","Folate deficiency","MTHFR gene mutation effects","Thrombosis risk"],"whenToTest":"Fasting for 8 hours is required for accurate results. Water is allowed. Test in the morning after an overnight fast.","resultsOverview":"Normal homocysteine is typically 5-15 μmol/L. Levels 15-30 μmol/L are moderately elevated, >30 μmol/L is severely elevated. High levels often respond well to B vitamin supplementation (B12, folate, B6).","faqs":[{"question":"What causes high homocysteine?","answer":"The most common cause is B vitamin deficiency (B12, folate, or B6). Other causes include MTHFR gene mutations, kidney disease, hypothyroidism, certain medications, and lifestyle factors like smoking and excessive coffee/alcohol."},{"question":"Can high homocysteine be treated?","answer":"Yes, in most cases. B vitamin supplementation (B12, folate, B6) effectively lowers homocysteine in most people. Treating underlying causes like hypothyroidism also helps."},{"question":"Should I test for MTHFR if my homocysteine is high?","answer":"MTHFR testing may be useful if homocysteine remains elevated despite adequate B vitamin intake. However, treating elevated homocysteine with B vitamins is effective regardless of MTHFR status."},{"question":"How does homocysteine affect the heart?","answer":"Elevated homocysteine may damage blood vessel linings, promote inflammation, increase blood clotting, and accelerate atherosclerosis. However, it's debated whether lowering homocysteine directly reduces cardiovascular events."}],"relatedTests":["vitamin-b12","folate-serum","hs-crp","lipid-panel"],"name_es":"Homocisteína","biomarkers_es":["Homocisteína"],"whenToTest_es":"Se prefiere ayuno de 8-12 horas para resultados más precisos. Puede analizarse en cualquier momento si el ayuno no es posible.","metaDescription_es":"Ordena una prueba de homocisteína por $27. Evalúa el riesgo cardiovascular y el estado de vitaminas B. Elevada en deficiencia de B12. Resultados en 2-3 días.","h1Title_es":"Análisis de Sangre de Homocisteína","metaTitle_es":"Prueba de Homocisteína - $27 | Salud Cardíaca y Vitaminas B | Justlabs","shortName_es":"Hcy","symptomsAddressed_es":["Antecedentes familiares de enfermedad cardíaca","Fatiga","Niebla mental","Entumecimiento/hormigueo"],"whoIsItFor_es":"Cualquier persona con antecedentes familiares de enfermedad cardíaca temprana, quienes tienen factores de riesgo cardiovascular, personas con antecedentes familiares de deficiencia de B12, vegetarianos y veganos, adultos mayores, y quienes desean una evaluación cardiovascular completa.","resultsOverview_es":"Óptimo: <10 µmol/L. Elevado: >10 µmol/L. Muy elevado: >15 µmol/L. La homocisteína elevada a menudo responde bien a la suplementación con B12, folato y B6. Vuelve a analizar 6-8 semanas después de comenzar el tratamiento.","longDescription_es":"La homocisteína es un aminoácido producido durante el metabolismo de proteínas. Normalmente se convierte en otras sustancias usando vitaminas B. Cuando las vitaminas B son bajas, la homocisteína se acumula.\n\nLa homocisteína elevada:\n• Aumenta el riesgo cardiovascular\n• Puede dañar las paredes arteriales\n• Está asociada con deterioro cognitivo\n• A menudo indica deficiencia de B12 o folato\n\nLa buena noticia: es tratable con suplementación de vitaminas B.","conditionsScreened_es":["Riesgo cardiovascular","Deficiencia de vitamina B12","Deficiencia de folato","Hiperhomocisteinemia"],"description_es":"Mide la homocisteína, un aminoácido relacionado con riesgo cardiovascular y estado de vitaminas B.","shortSummary_es":"La homocisteína elevada está vinculada a mayor riesgo de enfermedad cardíaca y puede indicar deficiencia de vitaminas B (B12, folato, B6). A diferencia de otros factores de riesgo, a menudo es tratable.","whatItMeasures_es":"Esta prueba mide la concentración de homocisteína en tu sangre. Óptimo: <10 µmol/L. Niveles de 10-15 están moderadamente elevados. Niveles >15 están significativamente elevados y requieren atención.","cptCode":"83090"},{"id":"apoe-genotype","questCode":"90649","name":"ApoE Genotype","shortName":"ApoE Gene","description":"Genetic test for ApoE variants that affect cardiovascular and Alzheimer's disease risk.","category":"cardiovascular","price":113,"costPrice":100.83,"fastingRequired":false,"labVendor":"Quest","biomarkers":["ApoE Genotype"],"turnaroundDays":"5-7","sampleTypes":["whole-blood"],"metaTitle":"ApoE Genotype Test - $113 | Genetic Heart & Brain Health | Justlabs","metaDescription":"Order an ApoE Genotype test for $113. Discover your genetic risk for cardiovascular disease and Alzheimer's. One-time genetic test. Results in 5-7 days.","h1Title":"ApoE Genotype (Apolipoprotein E Genetic) Test","shortSummary":"The ApoE genotype test identifies which variants of the ApoE gene you carry, providing insight into your genetic risk for heart disease and Alzheimer's.","longDescription":"Apolipoprotein E (ApoE) is a protein crucial for cholesterol transport and brain health. There are three common variants: E2, E3, and E4. Everyone inherits two copies (one from each parent), creating genotypes like E3/E3 (most common), E3/E4, or E4/E4.\n\nThe E4 variant is associated with higher LDL cholesterol, increased cardiovascular risk, and significantly elevated Alzheimer's risk. The E2 variant may offer some protection against heart disease but is associated with a rare lipid disorder. This one-time genetic test provides lifelong information about your genetic predisposition.","whatItMeasures":"This genetic test identifies your ApoE genotype - which two ApoE alleles (E2, E3, or E4) you carry. Results are permanent and never change. About 25% of people carry at least one E4 allele.","whoIsItFor":"Anyone wanting to understand their genetic risk for cardiovascular disease or Alzheimer's. Particularly valuable for those with family history of early heart disease or dementia, people with high LDL despite lifestyle changes, or those who want personalized prevention strategies.","symptomsAddressed":["Family history of heart disease","Family history of Alzheimer's","High cholesterol not responding to treatment","Proactive health planning","Personalized medicine interest"],"conditionsScreened":["Cardiovascular disease risk","Alzheimer's disease risk","Hyperlipidemia","Response to statin therapy","Type III hyperlipoproteinemia (E2/E2)"],"whenToTest":"No fasting required. This is a one-time test - your genotype never changes. Consider testing if you want genetic insight into your cardiovascular and cognitive health risks.","preparationInstructions":"No preparation needed. Consider genetic counseling before testing, especially if concerned about Alzheimer's risk, as results may have significant psychological impact.","resultsOverview":"E3/E3 (most common): average risk. E3/E4 or E4/E4: increased cardiovascular and Alzheimer's risk - more aggressive prevention recommended. E2/E3: may have lower cardiovascular risk. E2/E2: rare, associated with Type III hyperlipoproteinemia. Having E4 doesn't mean you'll develop disease, and not having it doesn't guarantee you won't.","faqs":[{"answer":"Consider your goals. If you want genetic insight to guide prevention strategies, it can be valuable. However, some people prefer not to know their Alzheimer's risk since there's currently no cure. Discuss with your doctor or a genetic counselor.","question":"Should I get tested for ApoE?"},{"answer":"E4 increases risk but doesn't guarantee disease. Many E4 carriers never develop Alzheimer's, and many without E4 do. Focus on modifiable factors: exercise, sleep, diet, cognitive engagement, and cardiovascular health.","question":"What if I have the E4 variant?"},{"answer":"Under GINA (Genetic Information Nondiscrimination Act), health insurers cannot use genetic information to deny coverage or set premiums. However, GINA does not cover life, disability, or long-term care insurance.","question":"Will this affect my insurance?"}],"relatedTests":["apolipoprotein-b","lipid-panel","lipoprotein-a","hs-crp"],"name_es":"Genotipo ApoE","biomarkers_es":["Genotipo ApoE"],"whenToTest_es":"No se requiere ayuno. Esta es una prueba única - tu genotipo nunca cambia. Considera analizarte si quieres información genética sobre tus riesgos de salud cardiovascular y cognitiva.","metaDescription_es":"Ordena una prueba de Genotipo ApoE por $103. Descubre tu riesgo genético de enfermedad cardiovascular y Alzheimer. Prueba genética única. Resultados en 5-7 días.","preparationInstructions_es":"No se necesita preparación. Considera consejería genética antes de la prueba, especialmente si te preocupa el riesgo de Alzheimer, ya que los resultados pueden tener impacto psicológico significativo.","h1Title_es":"Prueba de Genotipo ApoE (Apolipoproteína E Genética)","metaTitle_es":"Prueba de Genotipo ApoE - $103 | Salud Genética Cardíaca y Cerebral | Justlabs","shortName_es":"Gen ApoE","symptomsAddressed_es":["Historial familiar de enfermedad cardíaca","Historial familiar de Alzheimer","Colesterol alto sin respuesta al tratamiento","Planificación proactiva de salud","Interés en medicina personalizada"],"whoIsItFor_es":"Cualquiera que quiera entender su riesgo genético de enfermedad cardiovascular o Alzheimer. Particularmente valioso para aquellos con historial familiar de enfermedad cardíaca temprana o demencia, personas con LDL alto a pesar de cambios de estilo de vida, o aquellos que quieren estrategias de prevención personalizadas.","resultsOverview_es":"E3/E3 (más común): riesgo promedio. E3/E4 o E4/E4: mayor riesgo cardiovascular y de Alzheimer - se recomienda prevención más agresiva. E2/E3: puede tener menor riesgo cardiovascular. E2/E2: raro, asociado con hiperlipoproteinemia tipo III. Tener E4 no significa que desarrollarás la enfermedad, y no tenerlo no garantiza que no lo harás.","longDescription_es":"La apolipoproteína E (ApoE) es una proteína crucial para el transporte de colesterol y la salud cerebral. Hay tres variantes comunes: E2, E3 y E4. Todos heredan dos copias (una de cada padre), creando genotipos como E3/E3 (más común), E3/E4 o E4/E4.\n\nLa variante E4 está asociada con colesterol LDL más alto, mayor riesgo cardiovascular y riesgo significativamente elevado de Alzheimer. La variante E2 puede ofrecer cierta protección contra enfermedad cardíaca pero está asociada con un trastorno lipídico raro. Esta prueba genética única proporciona información de por vida sobre tu predisposición genética.","conditionsScreened_es":["Riesgo de enfermedad cardiovascular","Riesgo de enfermedad de Alzheimer","Hiperlipidemia","Respuesta a terapia con estatinas","Hiperlipoproteinemia tipo III (E2/E2)"],"description_es":"Prueba genética para variantes de ApoE que afectan el riesgo de enfermedad cardiovascular y Alzheimer.","shortSummary_es":"La prueba de genotipo ApoE identifica qué variantes del gen ApoE portas, proporcionando información sobre tu riesgo genético de enfermedad cardíaca y Alzheimer.","whatItMeasures_es":"Esta prueba genética identifica tu genotipo ApoE - cuáles dos alelos ApoE (E2, E3 o E4) portas. Los resultados son permanentes y nunca cambian. Aproximadamente el 25% de las personas portan al menos un alelo E4.","faqs_es":[{"question":"¿Debería hacerme la prueba de ApoE?","answer":"Considera tus objetivos. Si quieres información genética para guiar estrategias de prevención, puede ser valioso. Sin embargo, algunas personas prefieren no conocer su riesgo de Alzheimer ya que actualmente no hay cura. Discute con tu médico o consejero genético."},{"question":"¿Qué pasa si tengo la variante E4?","answer":"E4 aumenta el riesgo pero no garantiza la enfermedad. Muchos portadores de E4 nunca desarrollan Alzheimer, y muchos sin E4 sí lo hacen. Enfócate en factores modificables: ejercicio, sueño, dieta, participación cognitiva y salud cardiovascular."},{"question":"¿Afectará esto mi seguro?","answer":"Bajo GINA (Ley de No Discriminación por Información Genética), las aseguradoras de salud no pueden usar información genética para negar cobertura o establecer primas. Sin embargo, GINA no cubre seguros de vida, discapacidad o cuidado a largo plazo."}],"cptCode":"81401"},{"id":"lipoprotein-fractionation","questCode":"37847","name":"Lipoprotein Fractionation (NMR)","shortName":"NMR Lipoprofile","description":"Advanced lipid analysis using NMR spectroscopy to measure particle sizes and numbers for detailed cardiovascular risk.","category":"cardiovascular","price":52,"costPrice":50,"fastingRequired":true,"fastingHours":9,"labVendor":"Quest","biomarkers":["LDL Particle Number","Small LDL-P","HDL-P","LDL Size","HDL Size"],"turnaroundDays":"3-5","sampleTypes":["plasma"],"longDescription":"Standard cholesterol tests measure the amount of cholesterol carried in lipoproteins, but not the particles themselves. Lipoprotein fractionation provides a detailed breakdown of your lipoprotein particles by size and concentration.\n\n**Why particle size matters:** Two people with identical LDL cholesterol can have vastly different cardiovascular risk. Someone with many small, dense LDL particles has significantly higher risk than someone with fewer large, buoyant particles - even at the same LDL-C level.\n\n**Small, dense LDL particles:**\n- Penetrate artery walls more easily\n- Are more susceptible to oxidation\n- Stay in circulation longer\n- Are strongly associated with metabolic syndrome and insulin resistance\n\nThis test helps explain why some people with \"normal\" cholesterol still have heart attacks, and why others with \"high\" cholesterol remain disease-free.","symptomsAddressed":["Cardiovascular risk assessment","Metabolic syndrome evaluation","Family history of heart disease","Discordant lipid results","Treatment optimization"],"shortSummary":"Goes beyond standard cholesterol testing to measure the actual size and number of your LDL and HDL particles. Small, dense LDL particles are far more dangerous than large, fluffy ones.","relatedTests":["apolipoprotein-b","lipid-panel-cardio-iq","lipoprotein-a","hscrp","insulin-fasting"],"whoIsItFor":"Anyone wanting the most comprehensive assessment of lipid-related cardiovascular risk. Especially valuable for people with metabolic syndrome or insulin resistance, those with \"normal\" cholesterol but family history of heart disease, patients with discordant LDL-C and ApoB results, diabetics and prediabetics, anyone with high triglycerides (which shifts LDL toward small, dense particles), and those not responding as expected to statin therapy.","whenToTest":"Fasting for 10-12 hours is typically recommended for most accurate results. Best ordered alongside or after a standard lipid panel when more detailed risk assessment is needed. Useful for monitoring response to lifestyle changes or medication.","conditionsScreened":["Cardiovascular disease risk","Atherogenic dyslipidemia","Metabolic syndrome","LDL pattern B (small dense LDL)","Insulin resistance"],"metaDescription":"Order a Lipoprotein Fractionation test. Advanced analysis of LDL and HDL particle sizes and concentrations. Better cardiovascular risk assessment than standard lipid panels.","relatedPanels":["panel-heart-health","panel-metabolic-complete"],"faqs":[{"question":"Why is particle number more important than cholesterol amount?","answer":"Each LDL particle can carry varying amounts of cholesterol. Someone with many small particles might have the same LDL-C as someone with fewer large particles, but the person with more particles has more \"vehicles\" that can deposit cholesterol in artery walls. Particle number (LDL-P) is a stronger predictor of cardiovascular events than LDL-C."},{"question":"What causes small, dense LDL particles?","answer":"Insulin resistance is the primary driver. High triglycerides, metabolic syndrome, type 2 diabetes, excess refined carbohydrates, and visceral fat all promote the shift toward small, dense LDL. Improving insulin sensitivity through diet, exercise, and weight loss can shift particles back toward the healthier large, buoyant pattern."},{"question":"How is this different from an ApoB test?","answer":"ApoB counts total atherogenic particles (one ApoB per particle). Lipoprotein fractionation goes further by breaking down particles into size subclasses, showing not just how many particles you have but what types. Both are valuable - ApoB is simpler and cheaper, fractionation provides more detail."},{"question":"Should I get this test if my standard cholesterol is normal?","answer":"Consider it if you have metabolic syndrome, prediabetes/diabetes, high triglycerides, family history of early heart disease, or other risk factors despite normal LDL-C. Up to 50% of heart attacks occur in people with normal LDL cholesterol - particle testing helps identify hidden risk."}],"metaTitle":"Lipoprotein Fractionation Test | Advanced Cholesterol Analysis | Justlabs","h1Title":"Lipoprotein Fractionation - Advanced Particle Testing","resultsOverview":"**LDL Particle Number (LDL-P):**\n- Optimal: <1000 nmol/L\n- Moderate risk: 1000-1299 nmol/L\n- High risk: ≥1300 nmol/L\n\n**LDL Size Pattern:**\n- Pattern A (large, buoyant): Lower risk\n- Pattern B (small, dense): Higher risk - associated with 3x increased heart disease risk\n\n**Key insight:** If your LDL-C is normal but LDL-P is high, you have more particles than expected - this discordance increases risk. Focus on particle number, not just cholesterol content.","preparationInstructions":"Fast for 10-12 hours before your blood draw. Water is fine. Avoid alcohol for 48 hours before testing. Take medications as usual unless advised otherwise. Avoid strenuous exercise the day before testing.","whatItMeasures":"This test provides a detailed breakdown of lipoprotein subclasses:\n\n**LDL Particles:**\n- LDL particle number (LDL-P) - total count of LDL particles\n- Small LDL-P - the most atherogenic particles\n- LDL particle size - pattern A (large/buoyant) vs pattern B (small/dense)\n\n**HDL Particles:**\n- HDL particle number (HDL-P)\n- Large HDL-P - most protective subclass\n- HDL particle size\n\n**Other markers may include:**\n- VLDL subclasses\n- IDL (Intermediate density lipoprotein)\n- Lipoprotein(a) particle concentration","name_es":"Fraccionamiento de Lipoproteínas (RMN)","biomarkers_es":["Número de Partículas LDL","LDL-P Pequeño","HDL-P","Tamaño de LDL","Tamaño de HDL"],"description_es":"Análisis avanzado de lípidos usando espectroscopía RMN para medir tamaños y números de partículas para riesgo cardiovascular detallado.","shortName_es":"Perfil de Lípidos RMN","whenToTest_es":"Se recomienda típicamente ayuno de 10-12 horas para resultados más precisos. Mejor ordenar junto con o después de un panel lipídico estándar cuando se necesita una evaluación de riesgo más detallada. Útil para monitorear la respuesta a cambios en el estilo de vida o medicamentos.","longDescription_es":"Las pruebas de colesterol estándar miden la cantidad de colesterol transportado en lipoproteínas, pero no las partículas en sí. El fraccionamiento de lipoproteínas proporciona un desglose detallado de sus partículas de lipoproteínas por tamaño y concentración.\n\n**Por qué importa el tamaño de las partículas:** Dos personas con colesterol LDL idéntico pueden tener un riesgo cardiovascular muy diferente. Alguien con muchas partículas LDL pequeñas y densas tiene un riesgo significativamente mayor que alguien con menos partículas grandes y flotantes - incluso con el mismo nivel de LDL-C.\n\n**Partículas LDL pequeñas y densas:**\n- Penetran las paredes arteriales más fácilmente\n- Son más susceptibles a la oxidación\n- Permanecen más tiempo en circulación\n- Están fuertemente asociadas con el síndrome metabólico y resistencia a la insulina\n\nEsta prueba ayuda a explicar por qué algunas personas con colesterol \"normal\" todavía tienen ataques cardíacos, y por qué otras con colesterol \"alto\" permanecen libres de enfermedad.","conditionsScreened_es":["Riesgo de enfermedad cardiovascular","Dislipidemia aterogénica","Síndrome metabólico","Patrón B de LDL (LDL pequeño y denso)","Resistencia a la insulina"],"shortSummary_es":"Va más allá de las pruebas de colesterol estándar para medir el tamaño y número real de sus partículas LDL y HDL. Las partículas LDL pequeñas y densas son mucho más peligrosas que las grandes y esponjosas.","whatItMeasures_es":"Esta prueba proporciona un desglose detallado de las subclases de lipoproteínas:\n\n**Partículas LDL:**\n- Número de partículas LDL (LDL-P) - conteo total de partículas LDL\n- LDL-P pequeñas - las partículas más aterogénicas\n- Tamaño de partículas LDL - patrón A (grandes/flotantes) vs patrón B (pequeñas/densas)\n\n**Partículas HDL:**\n- Número de partículas HDL (HDL-P)\n- HDL-P grandes - subclase más protectora\n- Tamaño de partículas HDL\n\n**Otros marcadores pueden incluir:**\n- Subclases de VLDL\n- IDL (Lipoproteína de densidad intermedia)\n- Concentración de partículas de lipoproteína(a)","symptomsAddressed_es":["Evaluación de riesgo cardiovascular","Evaluación de síndrome metabólico","Antecedentes familiares de enfermedad cardíaca","Resultados lipídicos discordantes","Optimización del tratamiento"],"whoIsItFor_es":"Cualquier persona que desee la evaluación más completa del riesgo cardiovascular relacionado con lípidos. Especialmente valioso para personas con síndrome metabólico o resistencia a la insulina, aquellos con colesterol \"normal\" pero antecedentes familiares de enfermedad cardíaca, pacientes con resultados discordantes de LDL-C y ApoB, diabéticos y prediabéticos, cualquier persona con triglicéridos altos, y aquellos que no responden como se esperaba a la terapia con estatinas.","faqs_es":[{"question":"¿Por qué es más importante el número de partículas que la cantidad de colesterol?","answer":"Cada partícula LDL puede transportar cantidades variables de colesterol. Alguien con muchas partículas pequeñas podría tener el mismo LDL-C que alguien con menos partículas grandes, pero la persona con más partículas tiene más \"vehículos\" que pueden depositar colesterol en las paredes arteriales. El número de partículas (LDL-P) es un predictor más fuerte de eventos cardiovasculares que el LDL-C."},{"question":"¿Qué causa las partículas LDL pequeñas y densas?","answer":"La resistencia a la insulina es el principal impulsor. Los triglicéridos altos, el síndrome metabólico, la diabetes tipo 2, el exceso de carbohidratos refinados y la grasa visceral promueven el cambio hacia LDL pequeño y denso. Mejorar la sensibilidad a la insulina a través de la dieta, el ejercicio y la pérdida de peso puede cambiar las partículas de vuelta hacia el patrón grande y flotante más saludable."},{"question":"¿En qué se diferencia de una prueba de ApoB?","answer":"ApoB cuenta las partículas aterogénicas totales (un ApoB por partícula). El fraccionamiento de lipoproteínas va más allá al desglosar las partículas en subclases por tamaño, mostrando no solo cuántas partículas tiene sino qué tipos. Ambos son valiosos - ApoB es más simple y económico, el fraccionamiento proporciona más detalle."},{"question":"¿Debería hacerme esta prueba si mi colesterol estándar es normal?","answer":"Considérela si tiene síndrome metabólico, prediabetes/diabetes, triglicéridos altos, antecedentes familiares de enfermedad cardíaca temprana, u otros factores de riesgo a pesar de LDL-C normal. Hasta el 50% de los ataques cardíacos ocurren en personas con colesterol LDL normal - las pruebas de partículas ayudan a identificar el riesgo oculto."}],"cptCode":"83704"},{"id":"vitamin-d","questCode":"17306","name":"Vitamin D, 25-Hydroxy","shortName":"Vitamin D","description":"Measures vitamin D status. Deficiency is common and linked to bone health, immune function, and mood.","category":"vitamin","price":25,"costPrice":20,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Vitamin D","25-OH"],"turnaroundDays":"1-2","popular":true,"sampleTypes":["serum"],"metaTitle":"Vitamin D Test - $25 | Check Your Vitamin D Levels | Justlabs","metaDescription":"Order a Vitamin D blood test for $25. Check if you're deficient - over 40% of Americans are. Essential for bones, immunity, and mood. Results in 1-2 days.","h1Title":"Vitamin D Blood Test (25-Hydroxy)","shortSummary":"Vitamin D deficiency affects over 40% of Americans. This test measures your vitamin D status, essential for bone health, immune function, mood, and much more.","longDescription":"Vitamin D is more than just a vitamin - it's a hormone that affects nearly every cell in your body. Yet most people don't get enough from sunlight and food alone.\n\nDeficiency is linked to:\n• Weak bones and osteoporosis\n• Increased infection risk\n• Depression and mood issues\n• Fatigue and muscle weakness\n• Autoimmune conditions\n\nThis test measures 25-hydroxyvitamin D, the main circulating form that best reflects your overall vitamin D status.","whatItMeasures":"This test measures 25-hydroxyvitamin D in your blood, reported in ng/mL. Optimal levels are 40-60 ng/mL. Levels below 30 ng/mL indicate insufficiency, and below 20 ng/mL indicates deficiency. Some experts suggest levels of 50-80 ng/mL for optimal health.\n\nLearn more about Vitamin D with this in-depth guide:\n{{article:vitamin-d3-blood-test|heading=false}}                                                                                                                                                          ","whoIsItFor":"Everyone! Especially those with limited sun exposure, darker skin, older adults, people who are overweight, those with digestive conditions, and anyone experiencing fatigue, bone pain, muscle weakness, or frequent illness.","symptomsAddressed":["Fatigue","Bone pain","Muscle weakness","Frequent infections","Depression","Hair loss","Slow wound healing","Brain fog"],"conditionsScreened":["Vitamin D deficiency","Osteoporosis risk","Rickets","Osteomalacia","Seasonal affective disorder"],"whenToTest":"Test anytime - no fasting required. Best times to check: late winter (when levels are lowest), before starting supplementation, and 2-3 months after changing your supplement dose.","preparationInstructions":"No fasting required. If you take vitamin D supplements, take them as usual before testing to see your current levels on your regimen.","resultsOverview":"Deficient: <20 ng/mL | Insufficient: 20-29 ng/mL | Sufficient: 30-100 ng/mL | Optimal: 40-60 ng/mL. If deficient, your doctor may recommend 2,000-5,000 IU daily, or higher doses initially. Retest in 2-3 months.","faqs":[{"question":"What causes vitamin D deficiency?","answer":"Limited sun exposure (especially in winter or northern climates), darker skin, older age, obesity, digestive conditions, and not eating vitamin D-rich foods all contribute to deficiency."},{"question":"How much vitamin D should I take?","answer":"It depends on your level. Many adults need 2,000-5,000 IU daily to maintain optimal levels. Those who are deficient may need higher doses initially. Always retest after 2-3 months."},{"question":"Can I get enough vitamin D from food?","answer":"It's difficult. Few foods contain significant vitamin D - mainly fatty fish, egg yolks, and fortified foods. Most people need sunlight or supplements."},{"question":"Is there such thing as too much vitamin D?","answer":"Yes, levels above 100 ng/mL can cause toxicity, leading to high calcium levels. This is rare and usually only happens with excessive supplementation."}],"relatedTests":["calcium","parathyroid-hormone","vitamin-b12","magnesium"],"relatedPanels":["panel-wellness-comprehensive"],"createdBy":"script","name_es":"Vitamina D, 25-Hidroxi","biomarkers_es":["Vitamina D, 25-Hidroxi"],"whenToTest_es":"No se requiere ayuno. Analiza en cualquier momento. Considera analizar al final del invierno cuando los niveles son típicamente más bajos. Vuelve a analizar 2-3 meses después de comenzar suplementación para verificar los niveles.","metaDescription_es":"Ordena una prueba de Vitamina D por $11. Verifica esta vitamina esencial que afecta los huesos, la inmunidad y el humor. Más del 40% son deficientes. Resultados en 1-2 días.","preparationInstructions_es":"No se necesita preparación especial. Si tomas suplementos de vitamina D, continúa como de costumbre - tus resultados mostrarán tus niveles con tu régimen actual.","h1Title_es":"Análisis de Sangre de Vitamina D (25-Hidroxi)","metaTitle_es":"Prueba de Vitamina D - $11 | Análisis de 25-Hidroxi | Justlabs","shortName_es":"Vitamina D","symptomsAddressed_es":["Fatiga","Dolor óseo","Debilidad muscular","Depresión","Enfermedad frecuente","Cicatrización lenta de heridas","Caída del cabello"],"whoIsItFor_es":"Cualquier persona con exposición solar limitada, personas con piel oscura (reduce la producción de vitamina D), adultos mayores, personas con fatiga inexplicable o dolor óseo/muscular, quienes tienen problemas de absorción, y cualquiera preocupado por la salud ósea.","resultsOverview_es":"Deficiente: <20 ng/mL - se necesita suplementación. Insuficiente: 20-29 ng/mL - considera suplementación. Suficiente: 30-100 ng/mL. Óptimo: 40-60 ng/mL. Tóxico: >100 ng/mL (raro, generalmente solo por sobre-suplementación).","longDescription_es":"La vitamina D es más una hormona que una vitamina, afectando prácticamente todos los tejidos de tu cuerpo. Se produce cuando la luz solar llega a tu piel, pero muchas personas no obtienen suficiente exposición solar.\n\nLa vitamina D es crucial para:\n• Salud ósea y absorción de calcio\n• Función del sistema inmunológico\n• Regulación del humor (vinculada a la depresión)\n• Fuerza muscular\n• Función cardiovascular\n\nLa deficiencia está relacionada con osteoporosis, mayor riesgo de infección, depresión, fatiga y dolor muscular.","conditionsScreened_es":["Deficiencia de vitamina D","Riesgo de osteoporosis","Disfunción inmunológica","Trastorno afectivo estacional"],"description_es":"Mide los niveles de vitamina D, esencial para la salud ósea, inmunidad y bienestar general.","shortSummary_es":"La vitamina D es esencial para la salud ósea, la función inmunológica y el bienestar general. Más del 40% de los estadounidenses son deficientes, lo que hace de esta una de las deficiencias nutricionales más comunes.","whatItMeasures_es":"Esta prueba mide la 25-hidroxivitamina D, la forma principal de almacenamiento en tu sangre. Deficiente: <20 ng/mL. Insuficiente: 20-29 ng/mL. Suficiente: 30-100 ng/mL. Óptimo: 40-60 ng/mL según muchos expertos.","faqs_es":[{"question":"¿Cuánta vitamina D debo tomar?","answer":"Depende de tu nivel actual. Para mantenimiento: 1,000-2,000 UI diarias. Para deficiencia: 5,000+ UI diarias pueden ser necesarias inicialmente. Siempre vuelve a analizar después de 2-3 meses para ajustar la dosis."},{"question":"¿Puedo obtener suficiente vitamina D del sol?","answer":"Posiblemente en verano si tienes exposición regular al mediodía. Sin embargo, el protector solar, la piel más oscura, las latitudes norteñas y pasar tiempo en interiores hacen que muchas personas necesiten suplementación."},{"question":"¿Debo tomar vitamina D con K2?","answer":"Muchos expertos lo recomiendan. La vitamina K2 ayuda a dirigir el calcio a los huesos en lugar de las arterias. Si tomas dosis más altas de vitamina D, agregar K2 puede ser beneficioso."}],"createdAt":{"_nanoseconds":321000000,"_seconds":1769634720},"cptCode":"82306"},{"id":"vitamin-b12","questCode":"927","name":"Vitamin B12","shortName":"B12","description":"Measures B12 levels essential for nerve function, DNA synthesis, and red blood cell formation.","category":"vitamin","price":8,"costPrice":5.56,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Vitamin B12"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Vitamin B12 Blood Test - $8 | B12 Deficiency Test | Justlabs","metaDescription":"Order a Vitamin B12 blood test for $8. Essential for nerve function, energy, and red blood cell formation. Identify deficiency early. Results in 1-2 days.","h1Title":"Vitamin B12 Blood Test","shortSummary":"Vitamin B12 is essential for nerve function, DNA synthesis, red blood cell formation, and energy production. Deficiency is common and often undiagnosed.","longDescription":"Vitamin B12 (cobalamin) is a water-soluble vitamin that plays critical roles throughout your body. It's essential for maintaining healthy nerve cells, producing DNA and RNA, forming red blood cells, and converting food into cellular energy. Unlike other water-soluble vitamins, B12 can be stored in the liver for years, so deficiency develops slowly but can cause serious, sometimes irreversible damage if left untreated.\n\nB12 deficiency is surprisingly common, affecting an estimated 6% of adults under 60 and up to 20% of those over 60. It's particularly prevalent in vegans and vegetarians (B12 is found almost exclusively in animal products), older adults (who may have reduced absorption), people with digestive disorders, those who've had gastric surgery, and people taking certain medications like metformin or proton pump inhibitors.\n\nEarly detection is crucial because neurological damage from B12 deficiency can become permanent if not treated promptly. Symptoms often develop gradually and may be mistaken for normal aging or other conditions.","whatItMeasures":"This test measures the concentration of vitamin B12 in your blood serum. Normal levels typically range from 200-900 pg/mL, though optimal levels are often considered above 400-500 pg/mL. Levels below 200 pg/mL indicate deficiency.","whoIsItFor":"Vegans and vegetarians, adults over 50, people with fatigue or neurological symptoms, those with digestive disorders (celiac, Crohn's, gastritis), individuals who've had gastric bypass surgery, people taking metformin or PPIs long-term, and anyone with anemia or elevated MCV on CBC.","symptomsAddressed":["Fatigue and weakness","Numbness or tingling in hands and feet","Balance problems or difficulty walking","Memory problems or confusion","Depression or mood changes","Pale or yellowish skin","Sore, swollen tongue","Shortness of breath"],"conditionsScreened":["B12 deficiency","Pernicious anemia","Megaloblastic anemia","Peripheral neuropathy","Subacute combined degeneration","Malabsorption disorders"],"whenToTest":"No fasting required. B12 supplements should ideally be stopped 24-48 hours before testing for accurate baseline results. Recent B12 injections can elevate levels for weeks.","resultsOverview":"Normal B12 is typically 200-900 pg/mL. Levels below 200 pg/mL indicate deficiency requiring treatment. \"Gray zone\" levels (200-400 pg/mL) may warrant further testing with methylmalonic acid (MMA) or homocysteine, which are more sensitive markers. Very high levels (>1000 pg/mL) without supplementation may indicate liver disease or certain blood disorders.","faqs":[{"question":"Why is B12 deficiency so common?","answer":"B12 absorption requires multiple steps: stomach acid releases B12 from food, intrinsic factor binds to it, and the ileum absorbs it. Problems at any step cause deficiency. Aging reduces stomach acid production, and many medications interfere with absorption. Strict vegetarians get no dietary B12."},{"question":"What's the difference between B12 pills and injections?","answer":"Most people can absorb oral B12 supplements adequately. However, those with pernicious anemia, severe malabsorption, or very low levels may need B12 injections, which bypass the digestive system entirely. Your provider will recommend the appropriate form based on your situation."},{"question":"Can I have symptoms with \"normal\" B12 levels?","answer":"Yes. The lower end of the \"normal\" range (200-300 pg/mL) may still represent functional deficiency for some people. If you have symptoms despite normal B12, testing MMA (methylmalonic acid) can reveal cellular B12 deficiency that serum B12 misses."},{"question":"How long does it take to correct B12 deficiency?","answer":"Neurological symptoms may improve within weeks to months of treatment, though some damage can be permanent if deficiency was prolonged. Blood counts typically normalize within 1-2 months. Ongoing supplementation is usually needed if the underlying cause persists."}],"relatedTests":["methylmalonic-acid","folate-serum","cbc-diff","homocysteine","cmp"],"createdBy":"script","name_es":"Vitamina B12","biomarkers_es":["Vitamina B12"],"whenToTest_es":"No se requiere ayuno. Puede analizarse en cualquier momento del día. Si tomas suplementos de B12, los resultados reflejarán tu nivel actual con suplementación.","metaDescription_es":"Ordena una prueba de vitamina B12 por $9. Detecta deficiencia que causa fatiga, niebla mental y daño nervioso. Común en veganos y adultos mayores. Resultados en 1-2 días.","h1Title_es":"Análisis de Sangre de Vitamina B12","metaTitle_es":"Prueba de Vitamina B12 - $9 | Deficiencia de B12 | Justlabs","shortName_es":"B12","symptomsAddressed_es":["Fatiga","Niebla mental","Entumecimiento/hormigueo","Debilidad","Problemas de equilibrio","Depresión","Pérdida de memoria"],"whoIsItFor_es":"Vegetarianos y veganos, adultos mayores de 50 años, quienes toman metformina o inhibidores de bomba de protones, personas con fatiga o niebla mental, cualquiera con entumecimiento/hormigueo, y quienes tienen anemia.","resultsOverview_es":"Deficiente: <200 pg/mL. Rango bajo: 200-400 pg/mL (pueden ocurrir síntomas). Óptimo: >500 pg/mL. La deficiencia de B12 puede causar daño nervioso irreversible si no se trata, así que niveles bajos ameritan atención.","longDescription_es":"La vitamina B12 (cobalamina) es una vitamina esencial soluble en agua necesaria para:\n\n• Función nerviosa y protección de la vaina de mielina\n• Producción de glóbulos rojos\n• Síntesis de ADN\n• Función cerebral y humor\n• Metabolismo energético\n\nLa deficiencia de B12 es común porque:\n• Solo se encuentra en productos animales\n• La absorción disminuye con la edad\n• Ciertos medicamentos (metformina, inhibidores de bomba de protones) reducen la absorción\n• Las condiciones intestinales pueden afectar la absorción","conditionsScreened_es":["Deficiencia de vitamina B12","Anemia perniciosa","Neuropatía periférica","Deterioro cognitivo"],"description_es":"Mide la vitamina B12, esencial para la función nerviosa, producción de glóbulos rojos y función cerebral.","shortSummary_es":"La vitamina B12 es crucial para los nervios, el cerebro y la producción de sangre. La deficiencia es común, especialmente en vegetarianos, veganos, adultos mayores y quienes toman ciertos medicamentos.","whatItMeasures_es":"Esta prueba mide la vitamina B12 sérica en pg/mL. Rango de laboratorio: 200-900 pg/mL. Sin embargo, muchos expertos consideran que los niveles óptimos son >500 pg/mL, ya que los síntomas pueden ocurrir incluso con niveles \"normales\" bajos.","createdAt":{"_nanoseconds":428000000,"_seconds":1769634720},"cptCode":"82607"},{"id":"folate-serum","questCode":"466","name":"Folate, Serum","shortName":"Folate","description":"Measures folic acid levels important for cell division, DNA synthesis, and preventing birth defects.","category":"vitamin","price":10,"costPrice":4.64,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Folate"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Folate (Serum) Test - $10 | Folic Acid Level Test | Justlabs","metaDescription":"Order a Serum Folate test for $10. Check your folic acid levels for pregnancy planning, anemia, or overall health. No fasting. Results in 1-2 days.","h1Title":"Folate (Folic Acid) Serum Blood Test","shortSummary":"Serum folate measures the current level of folic acid (vitamin B9) in your blood, essential for DNA synthesis, cell division, and preventing neural tube defects during pregnancy.","longDescription":"Folate, also known as vitamin B9 or folic acid, is a water-soluble vitamin essential for numerous body functions including DNA synthesis, cell division, and red blood cell formation. Adequate folate is critical during pregnancy to prevent neural tube defects in developing babies.\n\nSerum folate reflects your recent dietary intake over the past few days to weeks. Because it responds quickly to changes in diet or supplementation, it's useful for assessing current folate status but may not accurately reflect long-term stores.\n\nFolate deficiency can lead to megaloblastic anemia (large, immature red blood cells), neurological problems, and increased homocysteine levels which are associated with cardiovascular risk. Good dietary sources include leafy greens, legumes, fortified grains, and liver.","whatItMeasures":"This test measures folate concentration in blood serum, reported in ng/mL. Normal levels typically range from 3-20 ng/mL, though optimal levels for pregnancy are often higher (>8 ng/mL). Levels below 3 ng/mL indicate deficiency.","whoIsItFor":"Women planning pregnancy or currently pregnant, individuals with anemia or suspected B vitamin deficiency, people with malabsorption conditions (celiac, Crohn's), those taking medications that affect folate (methotrexate, phenytoin), anyone with elevated homocysteine levels.","symptomsAddressed":["Fatigue and weakness","Shortness of breath","Pale skin","Mouth sores","Swollen tongue","Cognitive difficulties","Depression or irritability","Digestive issues"],"conditionsScreened":["Folate deficiency","Megaloblastic anemia","Neural tube defect risk","Malabsorption syndromes","Elevated homocysteine","Alcoholism-related deficiency","Medication side effects","Nutritional deficiencies"],"whenToTest":"No fasting required. For most accurate results, test in the morning. Note that recent high-folate meals or supplements can temporarily elevate levels, so consider testing before taking supplements that day.","resultsOverview":"Normal serum folate is 3-20 ng/mL. Below 3 ng/mL indicates deficiency requiring supplementation. For pregnancy planning, levels above 8 ng/mL are preferred. Very high levels are usually from recent supplementation and rarely harmful.","faqs":[{"question":"Should I get serum or RBC folate tested?","answer":"Serum folate shows recent intake, while RBC folate reflects long-term stores. For general screening, serum is sufficient. For suspected deficiency or malabsorption, RBC folate provides more reliable information about actual body stores."},{"question":"How much folic acid do I need during pregnancy?","answer":"Pregnant women need 600-800 mcg of folate daily, ideally starting 1-3 months before conception. Your doctor may recommend higher doses if you have a history of neural tube defects or certain medical conditions."},{"question":"Can I have too much folate?","answer":"High folate intake is generally safe, but very high supplemental doses (>1000 mcg) can mask vitamin B12 deficiency, delaying diagnosis and potentially causing neurological damage. Natural food folate has no upper limit."},{"question":"What causes folate deficiency?","answer":"Common causes include inadequate diet, alcoholism, malabsorption disorders (celiac, Crohn's), certain medications (methotrexate, phenytoin), and increased needs (pregnancy, hemolytic anemia)."}],"relatedTests":["folate-rbc","vitamin-b12","cbc-diff","homocysteine"],"createdBy":"script","name_es":"Folato Sérico","biomarkers_es":["Folato"],"whenToTest_es":"No se requiere ayuno. Para resultados más precisos, analiza en la mañana. Nota que comidas recientes altas en folato o suplementos pueden elevar temporalmente los niveles, así que considera analizar antes de tomar suplementos ese día.","metaDescription_es":"Ordena una prueba de Folato Sérico por $7. Verifica tus niveles de ácido fólico para planificación de embarazo, anemia o salud general. Sin ayuno. Resultados en 1-2 días.","h1Title_es":"Prueba de Folato (Ácido Fólico) Sérico","metaTitle_es":"Prueba de Folato (Sérico) - $7 | Prueba de Nivel de Ácido Fólico | Justlabs","shortName_es":"Folato","symptomsAddressed_es":["Fatiga y debilidad","Falta de aire","Piel pálida","Llagas en la boca","Lengua hinchada","Dificultades cognitivas","Depresión o irritabilidad","Problemas digestivos"],"whoIsItFor_es":"Mujeres planeando embarazo o actualmente embarazadas, individuos con anemia o sospecha de deficiencia de vitamina B, personas con condiciones de malabsorción (celiaquía, Crohn), aquellos tomando medicamentos que afectan el folato (metotrexato, fenitoína), cualquiera con niveles elevados de homocisteína.","resultsOverview_es":"El folato sérico normal es 3-20 ng/mL. Por debajo de 3 ng/mL indica deficiencia que requiere suplementación. Para planificación de embarazo, se prefieren niveles por encima de 8 ng/mL. Niveles muy altos usualmente son por suplementación reciente y raramente son dañinos.","longDescription_es":"El folato, también conocido como vitamina B9 o ácido fólico, es una vitamina soluble en agua esencial para numerosas funciones corporales incluyendo síntesis de ADN, división celular y formación de glóbulos rojos. El folato adecuado es crítico durante el embarazo para prevenir defectos del tubo neural en bebés en desarrollo.\n\nEl folato sérico refleja tu ingesta dietética reciente de los últimos días a semanas. Porque responde rápidamente a cambios en dieta o suplementación, es útil para evaluar el estado actual de folato pero puede no reflejar con precisión las reservas a largo plazo.\n\nLa deficiencia de folato puede llevar a anemia megaloblástica, problemas neurológicos y niveles elevados de homocisteína.","conditionsScreened_es":["Deficiencia de folato","Anemia megaloblástica","Riesgo de defecto del tubo neural","Síndromes de malabsorción","Homocisteína elevada","Deficiencia relacionada con alcoholismo","Efectos secundarios de medicamentos","Deficiencias nutricionales"],"description_es":"Mide los niveles de ácido fólico importantes para división celular, síntesis de ADN y prevención de defectos de nacimiento.","shortSummary_es":"El folato sérico mide el nivel actual de ácido fólico (vitamina B9) en tu sangre, esencial para síntesis de ADN, división celular y prevención de defectos del tubo neural durante el embarazo.","whatItMeasures_es":"Esta prueba mide la concentración de folato en suero sanguíneo, reportada en ng/mL. Los niveles normales típicamente varían de 3-20 ng/mL, aunque los niveles óptimos para embarazo son a menudo más altos (>8 ng/mL). Niveles por debajo de 3 ng/mL indican deficiencia.","faqs_es":[{"question":"¿Debo hacerme la prueba de folato sérico o folato de glóbulos rojos?","answer":"El folato sérico muestra ingesta reciente, mientras que el folato de glóbulos rojos refleja reservas a largo plazo. Para detección general, el sérico es suficiente. Para sospecha de deficiencia o malabsorción, el folato de glóbulos rojos proporciona información más confiable."},{"question":"¿Cuánto ácido fólico necesito durante el embarazo?","answer":"Las mujeres embarazadas necesitan 600-800 mcg de folato diariamente, idealmente comenzando 1-3 meses antes de la concepción. Tu médico puede recomendar dosis más altas si tienes historial de defectos del tubo neural."},{"question":"¿Puedo tener demasiado folato?","answer":"La ingesta alta de folato generalmente es segura, pero dosis suplementarias muy altas (>1000 mcg) pueden enmascarar deficiencia de vitamina B12, retrasando el diagnóstico. El folato natural de alimentos no tiene límite superior."},{"question":"¿Qué causa deficiencia de folato?","answer":"Las causas comunes incluyen dieta inadecuada, alcoholismo, trastornos de malabsorción (celiaquía, Crohn), ciertos medicamentos (metotrexato, fenitoína) y necesidades aumentadas (embarazo, anemia hemolítica)."}],"createdAt":{"_nanoseconds":527000000,"_seconds":1769634720},"cptCode":"82746","notAvailableToMinors":true},{"id":"folate-rbc","questCode":"467","name":"Folate, RBC","shortName":"RBC Folate","description":"Measures folate stored in red blood cells. More accurate long-term indicator than serum folate.","category":"vitamin","price":19,"costPrice":15.11,"fastingRequired":false,"labVendor":"Quest","biomarkers":["RBC Folate"],"turnaroundDays":"2-3","sampleTypes":["whole-blood"],"metaTitle":"RBC Folate Test - $19 | Long-Term Folate Status | Justlabs","metaDescription":"Order an RBC Folate test for $19. Get a more accurate picture of your long-term folate stores than serum folate. Ideal for anemia workup. Results in 2-3 days.","h1Title":"RBC Folate (Red Blood Cell Folate) Test","shortSummary":"RBC Folate measures the amount of folate stored inside your red blood cells, providing a more accurate picture of your long-term folate status than serum folate testing.","longDescription":"RBC (Red Blood Cell) Folate measures the folate incorporated into red blood cells during their formation in the bone marrow. Since red blood cells live approximately 120 days, this test reflects your average folate status over the past 3-4 months rather than recent dietary intake.\n\nThis makes RBC folate the gold standard for assessing true folate deficiency, as serum folate can fluctuate based on recent meals or supplements. RBC folate is particularly valuable when serum folate is borderline or when there's clinical suspicion of deficiency despite normal serum levels.\n\nLow RBC folate definitively indicates tissue folate depletion and is strongly associated with megaloblastic anemia, elevated homocysteine, and neural tube defect risk during pregnancy.","whatItMeasures":"This test measures folate concentration within red blood cells, reported in ng/mL. Normal RBC folate typically ranges from 280-791 ng/mL. Values below 280 ng/mL indicate deficiency requiring supplementation.","whoIsItFor":"Anyone with suspected folate deficiency despite normal serum levels, patients with malabsorption syndromes, women with history of neural tube defect pregnancies, individuals with unexplained macrocytic anemia, and those requiring comprehensive nutritional assessment.","symptomsAddressed":["Chronic fatigue","Macrocytic anemia symptoms","Cognitive impairment","Depression","Glossitis (inflamed tongue)","Poor wound healing","Recurrent infections","Pregnancy complications history"],"conditionsScreened":["True folate deficiency","Megaloblastic anemia","Malabsorption syndromes","Chronic alcoholism","Medication-induced deficiency","Neural tube defect risk","Cardiovascular risk assessment","Hyperhomocysteinemia"],"whenToTest":"No fasting required. Can test anytime. Results reflect status over the past 3-4 months, so recent dietary changes won't significantly affect results. Ideal for accurate baseline assessment.","resultsOverview":"Normal RBC folate is 280-791 ng/mL. Below 280 ng/mL confirms deficiency. Because RBC folate reflects long-term stores, low values indicate true tissue depletion requiring supplementation and possibly investigation of underlying causes.","faqs":[{"question":"Why is RBC folate more accurate than serum folate?","answer":"RBC folate reflects folate incorporated into cells over 3-4 months, while serum folate changes within days based on recent intake. RBC folate shows true tissue stores, making it more reliable for diagnosing deficiency."},{"question":"When should I choose RBC folate over serum folate?","answer":"Choose RBC folate when serum results are borderline, when malabsorption is suspected, for comprehensive anemia workup, or when accurate baseline assessment is needed before starting treatment."},{"question":"How long does it take to correct low RBC folate?","answer":"With adequate supplementation, RBC folate levels improve over 2-4 months as new red blood cells with normal folate content replace older ones. Follow-up testing is typically done at 3-4 months."},{"question":"Can recent supplements affect RBC folate?","answer":"No, RBC folate reflects folate status from months ago when the cells were formed. Recent supplements affect serum folate quickly but take months to change RBC folate levels."}],"relatedTests":["folate-serum","vitamin-b12","cbc-diff","homocysteine"],"createdBy":"script","name_es":"Folato de Glóbulos Rojos","biomarkers_es":["Folato de Glóbulos Rojos"],"whenToTest_es":"No se requiere ayuno. Se puede analizar en cualquier momento. Los resultados reflejan el estado durante los últimos 3-4 meses, así que los cambios dietéticos recientes no afectarán significativamente los resultados. Ideal para evaluación precisa de línea base.","metaDescription_es":"Ordena una prueba de Folato de GR por $17. Obtén una imagen más precisa de tus reservas de folato a largo plazo que el folato sérico. Ideal para evaluación de anemia. Resultados en 2-3 días.","h1Title_es":"Prueba de Folato de Glóbulos Rojos","metaTitle_es":"Prueba de Folato de Glóbulos Rojos - $17 | Estado de Folato a Largo Plazo | Justlabs","shortName_es":"Folato GR","symptomsAddressed_es":["Fatiga crónica","Síntomas de anemia macrocítica","Deterioro cognitivo","Depresión","Glositis (lengua inflamada)","Mala cicatrización de heridas","Infecciones recurrentes","Historial de complicaciones de embarazo"],"whoIsItFor_es":"Cualquiera con sospecha de deficiencia de folato a pesar de niveles séricos normales, pacientes con síndromes de malabsorción, mujeres con historial de embarazos con defectos del tubo neural, individuos con anemia macrocítica inexplicable, y aquellos que requieren evaluación nutricional integral.","resultsOverview_es":"El folato normal de GR es 280-791 ng/mL. Por debajo de 280 ng/mL confirma deficiencia. Porque el folato de GR refleja reservas a largo plazo, valores bajos indican depleción real de tejido que requiere suplementación y posiblemente investigación de causas subyacentes.","longDescription_es":"El Folato de Glóbulos Rojos mide el folato incorporado en los glóbulos rojos durante su formación en la médula ósea. Dado que los glóbulos rojos viven aproximadamente 120 días, esta prueba refleja tu estado promedio de folato durante los últimos 3-4 meses en lugar de la ingesta dietética reciente.\n\nEsto hace que el folato de GR sea el estándar de oro para evaluar la verdadera deficiencia de folato, ya que el folato sérico puede fluctuar basado en comidas recientes o suplementos. El folato de GR es particularmente valioso cuando el folato sérico es límite o cuando hay sospecha clínica de deficiencia a pesar de niveles séricos normales.","conditionsScreened_es":["Deficiencia verdadera de folato","Anemia megaloblástica","Síndromes de malabsorción","Alcoholismo crónico","Deficiencia inducida por medicamentos","Riesgo de defecto del tubo neural","Evaluación de riesgo cardiovascular","Hiperhomocisteinemia"],"description_es":"Mide el folato almacenado en glóbulos rojos. Indicador de largo plazo más preciso que el folato sérico.","shortSummary_es":"El Folato de Glóbulos Rojos mide la cantidad de folato almacenado dentro de tus glóbulos rojos, proporcionando una imagen más precisa de tu estado de folato a largo plazo que las pruebas de folato sérico.","whatItMeasures_es":"Esta prueba mide la concentración de folato dentro de los glóbulos rojos, reportada en ng/mL. El folato normal de GR típicamente varía de 280-791 ng/mL. Valores por debajo de 280 ng/mL indican deficiencia que requiere suplementación.","faqs_es":[{"question":"¿Por qué el folato de GR es más preciso que el folato sérico?","answer":"El folato de GR refleja el folato incorporado en las células durante 3-4 meses, mientras que el folato sérico cambia en días basado en ingesta reciente. El folato de GR muestra reservas reales de tejido, haciéndolo más confiable para diagnosticar deficiencia."},{"question":"¿Cuándo debo elegir folato de GR sobre folato sérico?","answer":"Elige folato de GR cuando los resultados séricos son límite, cuando se sospecha malabsorción, para evaluación integral de anemia, o cuando se necesita evaluación precisa de línea base antes de comenzar tratamiento."},{"question":"¿Cuánto tiempo toma corregir el folato de GR bajo?","answer":"Con suplementación adecuada, los niveles de folato de GR mejoran durante 2-4 meses mientras nuevos glóbulos rojos con contenido normal de folato reemplazan a los más viejos. Las pruebas de seguimiento típicamente se hacen a los 3-4 meses."},{"question":"¿Pueden los suplementos recientes afectar el folato de GR?","answer":"No, el folato de GR refleja el estado de folato de hace meses cuando las células se formaron. Los suplementos recientes afectan el folato sérico rápidamente pero toman meses para cambiar los niveles de folato de GR."}],"createdAt":{"_nanoseconds":636000000,"_seconds":1769634720},"cptCode":"82747","notAvailableToMinors":true},{"id":"ferritin","questCode":"457","name":"Ferritin","shortName":"Ferritin","description":"Measures iron storage protein. Best indicator of total body iron stores.","category":"vitamin","price":10,"costPrice":7,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Ferritin"],"turnaroundDays":"1-2","popular":true,"sampleTypes":["serum"],"metaTitle":"Ferritin Test - $10 | Check Your Iron Stores | Justlabs","metaDescription":"Order a ferritin blood test for $10. The most accurate test for iron deficiency and iron overload. Essential for fatigue, hair loss, and energy issues. Results in 1-2 days.","h1Title":"Ferritin Blood Test - Iron Storage Test","shortSummary":"Ferritin is the best indicator of your body's iron stores. Low ferritin is one of the most common causes of fatigue, especially in women.","longDescription":"Ferritin is a protein that stores iron in your cells, releasing it when needed. Unlike serum iron (which fluctuates throughout the day), ferritin provides a stable measure of your total body iron stores.\n\nIron is essential for:\n• Carrying oxygen in your blood\n• Energy production in cells\n• Brain function and concentration\n• Healthy hair, skin, and nails\n• Immune system function\n\nBoth low and high ferritin can cause problems, making this test valuable for anyone with fatigue or unexplained symptoms.","whatItMeasures":"This test measures ferritin protein in your blood, reflecting total body iron stores. Optimal ferritin is typically 50-150 ng/mL for women and 75-150 ng/mL for men. Below 30 ng/mL often causes symptoms even if technically \"normal.\" High levels (>300) may indicate iron overload or inflammation.","whoIsItFor":"Women (especially those with heavy periods), vegetarians/vegans, athletes, anyone with fatigue, hair loss, restless legs, difficulty concentrating, or frequent infections. Also important for monitoring iron supplementation or suspected hemochromatosis.","symptomsAddressed":["Fatigue","Hair loss","Pale skin","Shortness of breath","Cold hands and feet","Brittle nails","Restless legs","Brain fog","Weakness"],"conditionsScreened":["Iron deficiency","Iron deficiency anemia","Hemochromatosis (iron overload)","Inflammation","Chronic disease anemia"],"whenToTest":"Test anytime - no fasting required. For women, test mid-cycle if possible (ferritin may be lower right after menstruation). Test before starting iron supplements to establish baseline.","preparationInstructions":"No fasting required. If taking iron supplements, you may continue as normal for routine monitoring. Note that inflammation, infection, or liver disease can falsely elevate ferritin.","resultsOverview":"Low ferritin (<30 ng/mL) strongly suggests iron deficiency and often causes symptoms. Optimal: 50-150 ng/mL. High ferritin (>300) may indicate iron overload, inflammation, or liver issues. Note: \"normal\" lab ranges often start too low - many people feel better with ferritin above 50.","faqs":[{"question":"What's the difference between ferritin and iron tests?","answer":"Serum iron shows how much iron is circulating in your blood at that moment. Ferritin shows your total iron stores - it's like checking your bank account balance vs. your daily wallet cash."},{"question":"Can ferritin be too high?","answer":"Yes. Ferritin above 300-400 ng/mL may indicate hemochromatosis (genetic iron overload), liver disease, or inflammation. High ferritin requires investigation."},{"question":"Why is my ferritin low even though I eat meat?","answer":"Heavy periods, digestive issues (reducing absorption), intense exercise, frequent blood donation, or conditions like celiac disease can deplete iron faster than you can replace it."},{"question":"How long does it take to raise ferritin?","answer":"With proper supplementation, it typically takes 3-6 months to significantly raise ferritin levels. Retest every 3 months while supplementing."}],"relatedTests":["iron-total-tibc","cbc","vitamin-b12","folate-serum"],"relatedPanels":["panel-wellness-comprehensive"],"createdBy":"script","name_es":"Ferritina","biomarkers_es":["Ferritina"],"whenToTest_es":"No se requiere ayuno estricto, pero el ayuno proporciona resultados más consistentes. Evita analizarte durante enfermedad aguda ya que la ferritina se eleva con la inflamación.","metaDescription_es":"Ordena una prueba de ferritina por $8. La mejor prueba para evaluar las reservas de hierro. La ferritina baja causa fatiga incluso con hierro \"normal\". Resultados en 1-2 días.","h1Title_es":"Análisis de Sangre de Ferritina","metaTitle_es":"Prueba de Ferritina - $8 | Reservas de Hierro | Justlabs","shortName_es":"Ferritina","symptomsAddressed_es":["Fatiga","Caída del cabello","Piernas inquietas","Debilidad","Dificultad para concentrarse","Uñas quebradizas"],"whoIsItFor_es":"Cualquier persona con fatiga (especialmente mujeres), quienes tienen períodos abundantes, vegetarianos/veganos, donantes frecuentes de sangre, personas con síntomas de deficiencia de hierro pero hierro \"normal\", y quienes monitorean suplementación de hierro.","resultsOverview_es":"Deficiente: <30 ng/mL (o <50 si tienes síntomas). Óptimo: 50-150 ng/mL. Elevado: >200 ng/mL (puede indicar sobrecarga de hierro O inflamación). Si la ferritina está alta, verifica el hierro sérico y los marcadores de inflamación.","longDescription_es":"La ferritina es la proteína que almacena hierro en tus tejidos. A diferencia del hierro sérico que fluctúa, la ferritina refleja tus reservas totales de hierro a largo plazo.\n\nImportante: muchas personas se sienten mejor cuando la ferritina está por encima de 50 ng/mL, aunque técnicamente \"normal\" comienza en 12-15. Los rangos óptimos son más altos que los rangos de laboratorio.\n\nLa ferritina también es un marcador de inflamación - puede estar elevada durante infección o enfermedad crónica incluso con hierro bajo.","conditionsScreened_es":["Deficiencia de hierro","Anemia","Sobrecarga de hierro","Hemocromatosis","Inflamación crónica"],"description_es":"Mide las reservas de hierro del cuerpo. La mejor prueba individual para evaluar el estado de hierro.","shortSummary_es":"La ferritina refleja tus reservas totales de hierro almacenado. Puede estar baja incluso cuando el hierro sérico es \"normal\". Es el marcador más sensible de deficiencia de hierro.","whatItMeasures_es":"Esta prueba mide la ferritina sérica en ng/mL. Rango de laboratorio normal: 12-300 ng/mL (mujeres), 12-300 ng/mL (hombres). Óptimo: 50-150 ng/mL para la mayoría de las personas.","createdAt":{"_nanoseconds":739000000,"_seconds":1769634720},"cptCode":"82728"},{"id":"iron-total-tibc","questCode":"7573","name":"Iron and Total Iron Binding Capacity","shortName":"Iron & TIBC","description":"Comprehensive iron panel including serum iron, TIBC, and saturation percentage.","category":"vitamin","price":9,"costPrice":6.88,"fastingRequired":true,"fastingHours":8,"labVendor":"Quest","biomarkers":["Iron","TIBC","Iron Saturation"],"turnaroundDays":"1-2","sampleTypes":["serum"],"symptomsAddressed":["Fatigue","Weakness","Pale skin","Shortness of breath","Dizziness","Cold hands and feet","Brittle nails","Headaches","Difficulty concentrating","Rapid heartbeat"],"relatedTests":["ferritin","cbc","vitamin-b12","reticulocyte-count"],"conditionsScreened":["Iron deficiency","Iron deficiency anemia","Hemochromatosis","Chronic disease anemia","Thalassemia","Sideroblastic anemia","Lead poisoning"],"relatedPanels":["panel-vitamin-mineral","panel-energy-fatigue","panel-wellness-comprehensive"],"longDescription":"The Iron & TIBC panel provides a comprehensive assessment of your iron status by measuring three related markers. Unlike ferritin (which shows stored iron), this panel reveals how much iron is actively available in your bloodstream and whether your body has adequate capacity to transport it.\n\n**Serum Iron** shows the amount of iron currently circulating in your blood. **Total Iron Binding Capacity (TIBC)** measures how much transferrin (the iron transport protein) is available to carry iron. **Iron Saturation** is calculated from these values and shows what percentage of your iron-carrying capacity is being used.\n\nTogether, these markers help distinguish between different types of iron problems - from simple deficiency to chronic disease anemia to iron overload conditions.","faqs":[{"question":"What's the difference between this test and a ferritin test?","answer":"This panel shows your *circulating* iron and transport capacity - like checking cash flow. Ferritin shows your iron *stores* - like checking your savings account. For a complete picture, many people test both. Low ferritin with normal iron/TIBC means you're depleting your reserves."},{"question":"Why does this test require fasting?","answer":"Serum iron levels spike significantly after eating, especially iron-rich foods. Fasting ensures you get an accurate baseline reading. TIBC is less affected by food but fasting is still recommended for the complete panel."},{"question":"What does high TIBC mean?","answer":"High TIBC means your body has increased its iron-carrying capacity - usually because it's trying to grab more iron due to deficiency. Think of it as your body creating more 'delivery trucks' because there's not enough iron to transport. High TIBC + low iron = classic iron deficiency pattern."},{"question":"Can I have normal iron but still be deficient?","answer":"Yes. Serum iron fluctuates throughout the day and can appear normal even when stores are depleted. That's why iron saturation and TIBC are valuable - they show the full picture. Someone with 'normal' iron but high TIBC and low saturation is likely deficient."},{"question":"What if my saturation is high?","answer":"Iron saturation above 45% (especially above 60%) may indicate hemochromatosis, a genetic condition causing iron overload. This is treatable but requires monitoring. Your doctor may recommend genetic testing (HFE gene) and additional liver function tests."}],"shortSummary":"This test measures your circulating iron, your body's iron-carrying capacity (TIBC), and iron saturation percentage - giving you a complete picture of how your body handles iron.","whoIsItFor":"Anyone investigating fatigue, weakness, or suspected iron issues. Particularly useful for women with heavy periods, vegetarians/vegans, frequent blood donors, athletes (especially runners), people with digestive conditions affecting absorption, and those monitoring iron supplementation. Also important for ruling out hemochromatosis (genetic iron overload) when saturation is elevated.","metaTitle":"Iron & TIBC Test - $9 | Complete Iron Status Panel | Justlabs","whenToTest":"Fasting for 8-12 hours is required for accurate results - iron levels fluctuate significantly after eating. Morning testing is ideal since iron levels are highest in the morning and decline throughout the day. Avoid iron supplements for 24 hours before testing if checking baseline levels.","h1Title":"Iron & TIBC Blood Test - Complete Iron Status Panel","resultsOverview":"**Iron Saturation** is the most useful marker for quick interpretation:\n- **Below 20%**: Suggests iron deficiency - combine with ferritin for complete picture\n- **20-45%**: Normal range\n- **Above 45%**: May indicate iron overload - warrants further investigation\n- **Above 60%**: Strongly suggestive of hemochromatosis\n\nNote that iron levels alone can be misleading - always interpret alongside TIBC and saturation. Inflammation can lower serum iron while masking true deficiency.","preparationInstructions":"Fast for 8-12 hours before your blood draw (water is fine). Schedule a morning appointment for most accurate results. If taking iron supplements, skip your dose the day before testing. Note: recent blood transfusions, iron infusions, or high-dose vitamin C can affect results.","whatItMeasures":"This panel measures three iron-related markers:\n\n- **Serum Iron**: The amount of iron circulating in your blood (normal: 60-170 mcg/dL)\n- **TIBC (Total Iron Binding Capacity)**: How much transferrin protein is available to transport iron (normal: 250-370 mcg/dL). High TIBC indicates your body is \"hungry\" for iron.\n- **Iron Saturation**: Percentage of transferrin that's carrying iron (optimal: 25-45%). Calculated as (Iron ÷ TIBC) × 100.\n\nLow iron + high TIBC + low saturation = iron deficiency. Low iron + low TIBC = chronic disease or inflammation. High iron + high saturation = possible iron overload.","metaDescription":"Order an Iron and TIBC blood test for $9. Measures serum iron, total iron binding capacity, and saturation percentage. Essential for diagnosing iron deficiency or overload. Results in 1-2 days.","name_es":"Hierro Total con TIBC","biomarkers_es":["Hierro Sérico","TIBC","Saturación de Hierro"],"whenToTest_es":"Se requiere ayuno de 8-12 horas para resultados más precisos. Los niveles de hierro fluctúan durante el día, así que las pruebas matutinas proporcionan resultados más consistentes.","metaDescription_es":"Ordena un panel completo de hierro por $9. Incluye hierro, TIBC y saturación. Detecta deficiencia o sobrecarga de hierro. Resultados en 1-2 días.","h1Title_es":"Panel de Hierro Total con TIBC","metaTitle_es":"Prueba de Hierro con TIBC - $9 | Panel Completo de Hierro | Justlabs","shortName_es":"Hierro/TIBC","symptomsAddressed_es":["Fatiga","Debilidad","Falta de aliento","Piel pálida","Uñas quebradizas","Piernas inquietas","Mareos"],"whoIsItFor_es":"Cualquier persona con fatiga, debilidad o falta de aliento, mujeres con períodos abundantes, quienes donan sangre frecuentemente, vegetarianos/veganos, personas con anemia conocida o sospechada, y quienes tienen síntomas de sobrecarga de hierro.","resultsOverview_es":"Deficiencia de hierro típica: hierro bajo, TIBC alto, saturación baja (<20%). Sobrecarga de hierro: hierro alto, TIBC bajo, saturación alta (>45%). La anemia de enfermedad crónica muestra un patrón diferente: hierro bajo, TIBC bajo/normal.","longDescription_es":"El hierro es esencial para transportar oxígeno y producir energía. Este panel de hierro completo incluye:\n\n• Hierro Sérico - Cuánto hierro hay actualmente en tu sangre\n• TIBC (Capacidad Total de Unión de Hierro) - La capacidad de tu sangre para transportar hierro\n• Saturación de Hierro - Qué porcentaje de tu capacidad de transporte de hierro está en uso\n\nJuntos, estos valores distinguen entre diferentes causas de anemia y deficiencia de hierro.","conditionsScreened_es":["Anemia por deficiencia de hierro","Sobrecarga de hierro","Hemocromatosis","Anemia de enfermedad crónica"],"description_es":"Evaluación completa de hierro que incluye hierro sérico, capacidad total de unión de hierro y saturación.","shortSummary_es":"Esta prueba proporciona una imagen completa del estado de hierro midiendo el hierro en sangre, la capacidad de transporte (TIBC) y la saturación. Más informativo que el hierro solo.","whatItMeasures_es":"Este panel mide 3 componentes: Hierro sérico (cantidad de hierro en sangre), TIBC (capacidad de unión), y Saturación de hierro (calculada). Rangos normales: Hierro 60-170 mcg/dL, TIBC 250-400 mcg/dL, Saturación 25-45%.","cptCode":"83540, 83550"},{"id":"magnesium-rbc","questCode":"623","name":"Magnesium, RBC","shortName":"RBC Magnesium","description":"Measures magnesium inside red blood cells. More accurate than serum magnesium for assessing true status.","category":"vitamin","price":15,"costPrice":12.68,"fastingRequired":false,"labVendor":"Quest","biomarkers":["RBC Magnesium"],"turnaroundDays":"2-3","sampleTypes":["whole-blood"],"metaTitle":"RBC Magnesium Test - $15 | True Magnesium Status | Justlabs","metaDescription":"Order an RBC Magnesium blood test for $15. More accurate than serum magnesium for detecting deficiency. No fasting required. Results in 2-3 days.","h1Title":"RBC Magnesium Blood Test","shortSummary":"RBC (red blood cell) magnesium measures magnesium inside your cells, providing a more accurate assessment of your true magnesium status than standard serum magnesium tests.","longDescription":"Magnesium is essential for over 300 biochemical reactions in the body, including muscle function, nerve signaling, blood sugar regulation, blood pressure control, and energy production. Yet an estimated 50-60% of Americans don't get enough magnesium.\n\nWhy RBC magnesium is better than serum magnesium:\n- Only 1% of body magnesium is in blood; 99% is in cells and bones\n- Serum magnesium can appear \"normal\" even when you're deficient\n- The body tightly regulates serum levels, pulling from cells and bones to maintain them\n- RBC magnesium reflects what's actually available inside your cells\n- Deficiency symptoms often correlate better with RBC than serum levels\n\nIf you've been told your \"magnesium is fine\" but still have symptoms of deficiency (muscle cramps, fatigue, anxiety, poor sleep), RBC magnesium may reveal the true picture.","whatItMeasures":"This test measures magnesium concentration inside red blood cells, reported in mg/dL. Optimal RBC magnesium is typically 5.0-6.5 mg/dL. Levels below 4.5 mg/dL suggest deficiency. Some integrative practitioners aim for the upper end of the range (6.0-6.5 mg/dL).","whoIsItFor":"Anyone with symptoms of magnesium deficiency despite \"normal\" serum levels, people with muscle cramps, headaches, or sleep issues, those with diabetes or metabolic syndrome, individuals on medications that deplete magnesium (PPIs, diuretics), and those with high stress or alcohol consumption.","symptomsAddressed":["Muscle cramps and spasms","Fatigue and weakness","Anxiety and irritability","Poor sleep or insomnia","Headaches and migraines","Heart palpitations","Numbness or tingling","Brain fog"],"conditionsScreened":["Magnesium deficiency","Chronic fatigue","Fibromyalgia","Migraine evaluation","Diabetes and metabolic syndrome","Cardiovascular health","Anxiety disorders","Sleep disorders"],"whenToTest":"No fasting required. RBC magnesium can be tested any time. If supplementing, continue as usual to see your levels on your current regimen. Retest 2-3 months after starting supplementation to assess improvement.","resultsOverview":"Optimal: 5.5-6.5 mg/dL. Adequate: 4.5-5.5 mg/dL. Low: <4.5 mg/dL. If deficient, magnesium glycinate, citrate, or threonate are well-absorbed forms. It takes weeks to months to replete magnesium stores. Retest in 2-3 months.","faqs":[{"question":"Why is serum magnesium unreliable?","answer":"Serum contains only 1% of body magnesium. The body maintains serum levels at all costs, pulling from cells and bones when needed. You can be significantly depleted while serum appears normal. RBC magnesium better reflects your true cellular status."},{"question":"What causes magnesium deficiency?","answer":"Modern diets are often low in magnesium (processed foods, depleted soils). Stress depletes magnesium rapidly. Medications (PPIs, diuretics) reduce absorption or increase excretion. Alcohol, diabetes, and digestive disorders also contribute."},{"question":"Which magnesium supplement is best?","answer":"Magnesium glycinate is well-absorbed and calming (good for sleep/anxiety). Magnesium citrate helps with constipation. Magnesium threonate crosses the blood-brain barrier (good for cognition). Avoid magnesium oxide (poorly absorbed)."},{"question":"How much magnesium should I take?","answer":"The RDA is 310-420 mg/day, but many people need more. If deficient, 300-600 mg/day of a well-absorbed form is common. Divide doses to improve absorption. Too much at once causes loose stools (your body's natural limit indicator)."}],"relatedTests":["magnesium-serum","vitamin-d","calcium","potassium"],"createdBy":"script","name_es":"Magnesio de Glóbulos Rojos","biomarkers_es":["Magnesio de Glóbulos Rojos"],"whenToTest_es":"No se requiere ayuno. Se puede analizar en cualquier momento del día. Si tomas suplementos de magnesio, los resultados reflejarán el magnesio que realmente entra a tus células - una medida más útil que el magnesio sérico.","metaDescription_es":"Ordena una prueba de Magnesio de GR por $15. Más preciso que el magnesio sérico para detectar deficiencia. Sin ayuno. Resultados en 2-3 días.","h1Title_es":"Prueba de Magnesio de Glóbulos Rojos","metaTitle_es":"Prueba de Magnesio de Glóbulos Rojos - $15 | Estado Verdadero de Magnesio | Justlabs","shortName_es":"Magnesio GR","symptomsAddressed_es":["Calambres y espasmos musculares","Fatiga y debilidad","Ansiedad e irritabilidad","Mal sueño o insomnio","Dolores de cabeza y migrañas","Palpitaciones cardíacas","Estreñimiento","Presión arterial alta","Antojos de chocolate","Contracciones de párpados"],"whoIsItFor_es":"Cualquiera con síntomas de deficiencia de magnesio a pesar de niveles séricos 'normales', personas con calambres musculares, dolores de cabeza o problemas de sueño, aquellos con diabetes o síndrome metabólico, individuos con medicamentos que agotan el magnesio (IBP, diuréticos), y aquellos con alto estrés o consumo de alcohol.","resultsOverview_es":"El magnesio óptimo de GR es 5.0-6.5 mg/dL. Algunos profesionales integradores apuntan al extremo superior del rango (6.0-6.5 mg/dL). Niveles por debajo de 4.5 mg/dL indican deficiencia que puede requerir suplementación y evaluación de causas subyacentes.","longDescription_es":"El magnesio es esencial para más de 300 reacciones bioquímicas en el cuerpo, incluyendo función muscular, señalización nerviosa, regulación de azúcar en sangre, control de presión arterial y producción de energía. Sin embargo, se estima que el 50-60% de los estadounidenses no obtienen suficiente magnesio.\n\nPor qué el magnesio de GR es mejor que el magnesio sérico:\n- Solo el 1% del magnesio corporal está en la sangre; el 99% está en células y huesos\n- El magnesio sérico puede parecer 'normal' incluso cuando tienes deficiencia\n- El cuerpo regula estrictamente los niveles séricos, extrayendo de células y huesos para mantenerlos\n- El magnesio de GR refleja lo que realmente está disponible dentro de tus células\n- Los síntomas de deficiencia a menudo se correlacionan mejor con GR que con niveles séricos\n\nSi te han dicho que tu 'magnesio está bien' pero aún tienes síntomas de deficiencia, el magnesio de GR puede revelar la imagen verdadera.","conditionsScreened_es":["Deficiencia de magnesio","Fibromialgia","Migrañas","Arritmias cardíacas","Síndrome metabólico","Osteoporosis","Resistencia a la insulina","Síndrome premenstrual"],"description_es":"Mide el magnesio dentro de los glóbulos rojos. Más preciso que el magnesio sérico para evaluar el estado verdadero.","shortSummary_es":"El magnesio de glóbulos rojos mide el magnesio dentro de tus células, proporcionando una evaluación más precisa de tu verdadero estado de magnesio que las pruebas estándar de magnesio sérico.","whatItMeasures_es":"Esta prueba mide la concentración de magnesio dentro de los glóbulos rojos, reportada en mg/dL. El magnesio óptimo de GR es típicamente 5.0-6.5 mg/dL. Niveles por debajo de 4.5 mg/dL sugieren deficiencia.","faqs_es":[{"question":"¿Por qué el magnesio de GR es más preciso?","answer":"El magnesio sérico solo mide el 1% de tu magnesio total. Tu cuerpo mantiene los niveles séricos estrictamente, extrayendo de células y huesos cuando es necesario. El magnesio de GR mide lo que realmente está dentro de tus células - donde se usa el magnesio."},{"question":"Mi magnesio sérico es normal pero aún tengo síntomas. ¿Puede ayudar el magnesio de GR?","answer":"¡Sí! Esto es exactamente para lo que está diseñada la prueba de magnesio de GR. Puedes tener magnesio sérico 'normal' mientras tus células están agotadas. El magnesio de GR revela esta deficiencia oculta."},{"question":"¿Cómo elevo mi magnesio de GR?","answer":"El glicinato o treonato de magnesio tienen buena absorción celular. La aplicación tópica (sales de Epsom, aceite de magnesio) también puede ayudar. Se necesita suplementación consistente durante 3-6 meses para mejorar significativamente el magnesio de GR."},{"question":"¿Con qué frecuencia debo volver a analizar?","answer":"Vuelve a analizar 3-6 meses después de comenzar la suplementación para evaluar la respuesta. Una vez que los niveles se optimicen, las pruebas anuales son suficientes a menos que cambien los síntomas."}],"createdAt":{"_nanoseconds":843000000,"_seconds":1769634720},"cptCode":"83735"},{"id":"zinc","questCode":"945","name":"Zinc","shortName":"Zinc","description":"Measures zinc levels important for immune function, wound healing, and thyroid function.","category":"vitamin","price":20,"costPrice":14.88,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Zinc"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Zinc Blood Test - $20 | Immune & Thyroid Health | Justlabs","metaDescription":"Order a zinc blood test for $20. Essential for immune function, wound healing, thyroid health, and testosterone production. No fasting. Results in 2-3 days.","h1Title":"Zinc Blood Test","shortSummary":"Zinc is an essential trace mineral involved in over 300 enzymatic reactions, including immune function, wound healing, thyroid hormone production, and testosterone synthesis.","longDescription":"Zinc is the second most abundant trace mineral in your body and is vital for countless biological processes. It plays crucial roles in immune function, wound healing, protein synthesis, DNA synthesis, cell division, and the proper functioning of taste and smell. Zinc is also essential for thyroid hormone production and testosterone synthesis.\n\nYour body doesn't store zinc, so you need regular dietary intake from foods like meat, shellfish, legumes, nuts, and seeds. Zinc deficiency is surprisingly common globally and can occur due to inadequate dietary intake, malabsorption, chronic diseases, or increased requirements (pregnancy, growth, illness).\n\nBecause zinc competes with copper for absorption, high-dose zinc supplementation can cause copper deficiency. Testing both minerals together provides a more complete picture of your mineral status.","whatItMeasures":"This test measures the concentration of zinc in your blood serum. Normal levels typically range from 60-120 mcg/dL. Levels below 60 mcg/dL suggest deficiency, while very high levels may indicate excessive supplementation.","whoIsItFor":"People with frequent infections or slow wound healing, vegetarians and vegans (zinc from plant sources is less bioavailable), individuals with digestive disorders, those with hair loss or skin problems, men with low testosterone symptoms, pregnant or breastfeeding women, and anyone taking high-dose zinc supplements (to monitor levels).","symptomsAddressed":["Frequent colds or infections","Slow wound healing","Hair loss","Loss of taste or smell","Skin rashes or acne","Diarrhea","Low appetite","Poor concentration"],"conditionsScreened":["Zinc deficiency","Malabsorption disorders","Immune dysfunction","Growth retardation (children)","Hypogonadism evaluation","Thyroid dysfunction workup"],"whenToTest":"No fasting required, though fasting may provide more consistent results. Avoid zinc supplements for 24 hours before testing. Time of day can affect levels (higher in morning).","resultsOverview":"Normal serum zinc is typically 60-120 mcg/dL. Low levels indicate deficiency requiring dietary changes or supplementation. Interpretation should consider symptoms, as serum zinc may not fully reflect tissue stores. Very high levels (>150 mcg/dL) suggest excessive supplementation and risk of copper depletion.","faqs":[{"question":"Why do vegetarians have higher risk of zinc deficiency?","answer":"Plant-based zinc sources contain phytates that reduce zinc absorption by up to 50%. Additionally, plant foods generally contain less zinc than animal sources. Vegetarians may need 50% more zinc than omnivores to maintain adequate levels."},{"question":"Can zinc help with colds?","answer":"Research suggests zinc lozenges or syrup taken within 24 hours of cold symptoms may reduce duration by about one day. However, regular high-dose zinc supplementation isn't recommended due to risks including copper deficiency and immune suppression."},{"question":"What's the zinc-copper connection?","answer":"Zinc and copper compete for absorption in the intestines. Taking high-dose zinc supplements (>40mg/day) long-term can deplete copper, potentially causing anemia, neurological problems, and immune issues. If supplementing zinc, monitoring both minerals is advisable."},{"question":"Does zinc help testosterone?","answer":"Zinc is essential for testosterone production, and deficiency can lower testosterone levels. Correcting zinc deficiency may improve testosterone, but supplementing when zinc is already adequate doesn't further increase testosterone."}],"relatedTests":["copper","testosterone-total","tsh","cbc-diff","iron-panel"],"name_es":"Zinc","biomarkers_es":["Zinc"],"description_es":"Mide los niveles de zinc en sangre. Importante para función inmune, cicatrización de heridas y síntesis de proteínas.","shortName_es":"Zinc","whenToTest_es":"No se requiere ayuno, aunque el ayuno puede proporcionar resultados más consistentes. Evite suplementos de zinc 24 horas antes de la prueba. La hora del día puede afectar los niveles (más altos en la mañana).","longDescription_es":"El zinc es el segundo mineral traza más abundante en su cuerpo y es vital para innumerables procesos biológicos. Juega roles cruciales en la función inmune, cicatrización de heridas, síntesis de proteínas, síntesis de ADN, división celular y el funcionamiento adecuado del gusto y el olfato. El zinc también es esencial para la producción de hormona tiroidea y síntesis de testosterona.\n\nSu cuerpo no almacena zinc, por lo que necesita ingesta dietética regular de alimentos como carne, mariscos, legumbres, nueces y semillas. La deficiencia de zinc es sorprendentemente común globalmente y puede ocurrir debido a ingesta dietética inadecuada, malabsorción, enfermedades crónicas o mayores requerimientos (embarazo, crecimiento, enfermedad).\n\nDado que el zinc compite con el cobre por la absorción, la suplementación de zinc en dosis altas puede causar deficiencia de cobre. Analizar ambos minerales juntos proporciona una imagen más completa de su estado mineral.","conditionsScreened_es":["Deficiencia de zinc","Trastornos de malabsorción","Disfunción inmune","Retraso del crecimiento (niños)","Evaluación de hipogonadismo","Estudio de disfunción tiroidea"],"shortSummary_es":"El zinc es un mineral traza esencial involucrado en más de 300 reacciones enzimáticas, incluyendo función inmune, cicatrización de heridas, producción de hormona tiroidea y síntesis de testosterona.","whatItMeasures_es":"Esta prueba mide la concentración de zinc en su suero sanguíneo. Los niveles normales típicamente varían de 60-120 mcg/dL. Niveles por debajo de 60 mcg/dL sugieren deficiencia, mientras que niveles muy altos pueden indicar suplementación excesiva.","symptomsAddressed_es":["Resfriados o infecciones frecuentes","Cicatrización lenta de heridas","Pérdida de cabello","Pérdida del gusto u olfato","Erupciones cutáneas o acné","Diarrea","Bajo apetito","Poca concentración"],"whoIsItFor_es":"Personas con infecciones frecuentes o cicatrización lenta de heridas, vegetarianos y veganos (el zinc de fuentes vegetales es menos biodisponible), individuos con trastornos digestivos, aquellos con pérdida de cabello o problemas de piel, hombres con síntomas de testosterona baja, mujeres embarazadas o en lactancia, y cualquier persona que tome suplementos de zinc en dosis altas (para monitorear niveles).","faqs_es":[{"question":"¿Por qué los vegetarianos tienen mayor riesgo de deficiencia de zinc?","answer":"Las fuentes vegetales de zinc contienen fitatos que reducen la absorción de zinc hasta en un 50%. Además, los alimentos vegetales generalmente contienen menos zinc que las fuentes animales. Los vegetarianos pueden necesitar 50% más zinc que los omnívoros para mantener niveles adecuados."},{"question":"¿Puede el zinc ayudar con los resfriados?","answer":"La investigación sugiere que las pastillas o jarabe de zinc tomados dentro de las 24 horas de los síntomas del resfriado pueden reducir la duración aproximadamente un día. Sin embargo, la suplementación regular de zinc en dosis altas no se recomienda debido a los riesgos incluyendo deficiencia de cobre y supresión inmune."},{"question":"¿Cuál es la conexión zinc-cobre?","answer":"El zinc y el cobre compiten por la absorción en los intestinos. Tomar suplementos de zinc en dosis altas (>40mg/día) a largo plazo puede agotar el cobre, potencialmente causando anemia, problemas neurológicos y problemas inmunes. Si suplementa zinc, monitorear ambos minerales es aconsejable."},{"question":"¿El zinc ayuda a la testosterona?","answer":"El zinc es esencial para la producción de testosterona, y la deficiencia puede reducir los niveles de testosterona. Corregir la deficiencia de zinc puede mejorar la testosterona, pero suplementar cuando el zinc ya es adecuado no aumenta más la testosterona."}],"cptCode":"84630"},{"id":"copper","questCode":"363","name":"Copper","shortName":"Copper","description":"Measures copper levels. Important for iron metabolism, nerve function, and immune health.","category":"vitamin","price":18,"costPrice":16.21,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Copper"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Copper Blood Test - $18 | Essential Mineral Testing | Justlabs","metaDescription":"Order a Copper blood test for $18. Measure this essential mineral important for iron metabolism, nerve function, and immune health. No fasting. Results in 2-3 days.","h1Title":"Copper Blood Test","shortSummary":"Copper is an essential trace mineral vital for iron metabolism, energy production, nerve health, and immune function. Testing helps identify deficiency or toxicity.","longDescription":"Copper is a critical trace mineral that plays essential roles throughout your body. It is required for iron absorption and red blood cell formation, making it crucial for preventing anemia. Copper is also a component of important enzymes involved in energy production, connective tissue formation, nerve signaling, and the immune response. Both copper deficiency and excess can cause health problems. Deficiency may result from malabsorption conditions, zinc supplementation, or certain surgeries, while copper toxicity can occur from Wilson's disease, excessive supplementation, or environmental exposure. This test measures serum copper to help identify imbalances.","whatItMeasures":"This test measures the concentration of copper in your blood serum. Copper levels reflect your body's copper status and can help diagnose deficiency, excess, or conditions affecting copper metabolism like Wilson's disease or Menkes disease.","whoIsItFor":"People with unexplained anemia that doesn't respond to iron supplementation, those with symptoms of copper deficiency (fatigue, weakness, bone problems, frequent infections), individuals taking high-dose zinc supplements, people with malabsorption conditions (celiac disease, Crohn's, gastric bypass), and those with a family history of Wilson's disease.","symptomsAddressed":["Unexplained anemia","Fatigue and weakness","Frequent infections","Bone fragility","Neurological symptoms","Pale skin","Joint problems","Premature gray hair"],"conditionsScreened":["Copper deficiency","Wilson's disease","Menkes disease","Copper toxicity","Malabsorption disorders","Anemia evaluation","Nutritional assessment"],"whenToTest":"No fasting is required. This test can be taken at any time of day. Avoid copper supplements for 24 hours before testing if possible, and inform your provider about any supplements you take.","resultsOverview":"Normal copper levels typically range from 70-140 mcg/dL in adults, though ranges vary by lab. Low levels may indicate deficiency from diet, malabsorption, or zinc excess. Very low levels suggest Menkes disease. Elevated copper can occur with Wilson's disease (paradoxically low despite accumulation in tissues), inflammation, pregnancy, or copper toxicity. Results are often interpreted alongside ceruloplasmin levels.","faqs":[{"question":"What is the relationship between copper and zinc?","answer":"Copper and zinc compete for absorption in the intestines. High doses of zinc supplements can cause copper deficiency by blocking its absorption. If you take zinc supplements regularly, monitoring copper levels is advisable. A balanced ratio is important for optimal health."},{"question":"What is Wilson's disease?","answer":"Wilson's disease is a genetic disorder where copper accumulates in the liver, brain, and other organs because the body cannot properly excrete it. Symptoms include liver disease, neurological problems, and psychiatric symptoms. Early diagnosis through copper and ceruloplasmin testing is important for treatment."},{"question":"Can I get enough copper from food?","answer":"Most people get adequate copper from a varied diet including shellfish, organ meats, nuts, seeds, whole grains, beans, and dark chocolate. Deficiency is uncommon in people with normal absorption but can occur with certain medical conditions or excessive zinc intake."},{"question":"Should I test ceruloplasmin too?","answer":"Ceruloplasmin is a protein that carries most blood copper. Testing both copper and ceruloplasmin together provides a more complete picture, especially when evaluating Wilson's disease. Your healthcare provider may recommend both tests depending on your symptoms and clinical picture."}],"relatedTests":["zinc","iron-panel","ferritin","cbc-diff"],"createdBy":"script","name_es":"Cobre","biomarkers_es":["Cobre"],"description_es":"Mide los niveles de cobre en sangre. Esencial para metabolismo del hierro, formación de tejido conectivo y función nerviosa.","shortName_es":"Cobre","whenToTest_es":"No se requiere ayuno. El cobre puede analizarse en cualquier momento del día. A menudo se ordena junto con el zinc debido a su relación metabólica.","longDescription_es":"El cobre es un mineral traza esencial que sirve como cofactor para muchas enzimas involucradas en la producción de energía, formación de tejido conectivo, metabolismo del hierro y función del sistema nervioso. Su cuerpo necesita cobre para producir glóbulos rojos, mantener células nerviosas saludables y apoyar su sistema inmune.\n\nTanto la deficiencia como el exceso de cobre pueden causar problemas de salud. La deficiencia puede llevar a anemia, problemas neurológicos y debilidad ósea. El exceso de cobre, como se ve en la enfermedad de Wilson, puede dañar el hígado y el cerebro.\n\nEl cobre y el zinc tienen una relación inversa - los niveles altos de uno pueden suprimir al otro. Esta es la razón por la cual la suplementación de zinc a largo plazo sin monitoreo puede llevar a deficiencia de cobre.","conditionsScreened_es":["Deficiencia de cobre","Toxicidad por cobre","Enfermedad de Wilson","Enfermedad de Menkes","Anemia de causa desconocida"],"shortSummary_es":"El cobre es un mineral traza esencial necesario para la producción de energía, formación de tejido conectivo, metabolismo del hierro y función del sistema nervioso.","whatItMeasures_es":"Esta prueba mide la concentración de cobre en su suero sanguíneo. Los niveles normales típicamente varían de 70-140 mcg/dL. El cobre es transportado principalmente por la proteína ceruloplasmina.","symptomsAddressed_es":["Fatiga inexplicable","Anemia que no responde al hierro","Síntomas neurológicos","Debilidad ósea","Problemas hepáticos"],"whoIsItFor_es":"Personas que toman suplementos de zinc en dosis altas, aquellos con anemia que no responde al hierro, individuos con síntomas neurológicos inexplicables, personas con enfermedad hepática, aquellos con sospecha de enfermedad de Wilson o Menkes, y cualquier persona con síntomas de deficiencia o toxicidad de cobre.","faqs_es":[{"question":"¿Por qué analizar cobre y zinc juntos?","answer":"El cobre y el zinc compiten por la absorción y tienen una relación inversa. Los suplementos de zinc en dosis altas pueden causar deficiencia de cobre. Analizar ambos proporciona una imagen completa del equilibrio mineral."},{"question":"¿Qué es la enfermedad de Wilson?","answer":"La enfermedad de Wilson es un trastorno genético raro donde el cobre se acumula en el hígado, cerebro y otros órganos. Causa daño hepático y síntomas neurológicos. El diagnóstico temprano y tratamiento son cruciales."},{"question":"¿Puede la deficiencia de cobre causar anemia?","answer":"Sí, el cobre es necesario para la absorción y utilización del hierro. La deficiencia de cobre puede causar anemia que no responde a los suplementos de hierro. Esta es una causa a menudo pasada por alto de anemia resistente al tratamiento."}],"createdAt":{"_nanoseconds":945000000,"_seconds":1769634720},"cptCode":"82525"},{"id":"selenium","questCode":"5507","name":"Selenium","shortName":"Selenium","description":"Measures selenium, essential for thyroid function, antioxidant defenses, and immune health.","category":"vitamin","price":44,"costPrice":35.46,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Selenium"],"turnaroundDays":"3-5","sampleTypes":["serum"],"metaTitle":"Selenium Blood Test - $44 | Thyroid & Antioxidant Health | Justlabs","metaDescription":"Order a selenium blood test for $44. Essential for thyroid function, antioxidant defenses, and immune health. Important for Hashimoto's. Results in 3-5 days.","h1Title":"Selenium Blood Test","shortSummary":"Selenium is an essential trace mineral critical for thyroid hormone metabolism, antioxidant enzyme function, immune defense, and protection against oxidative stress.","longDescription":"Selenium is an essential trace mineral that serves as a cofactor for critical enzymes throughout your body. It's particularly important for thyroid function—selenium-dependent enzymes convert the inactive thyroid hormone T4 into active T3, and protect the thyroid gland from oxidative damage during hormone production.\n\nBeyond thyroid health, selenium is central to your body's antioxidant defense system. It's a key component of glutathione peroxidase, one of the most important antioxidant enzymes that protects cells from free radical damage. Selenium also supports immune function, DNA synthesis, and reproductive health.\n\nSelenium status varies significantly by geographic location because soil selenium content determines how much enters the food chain. Brazil nuts are exceptionally high in selenium, and other good sources include seafood, organ meats, and muscle meats. Both deficiency and excess can cause health problems, making testing valuable for optimizing intake.","whatItMeasures":"This test measures the concentration of selenium in your blood serum. Normal levels typically range from 70-150 ng/mL. Optimal levels for thyroid and antioxidant function are often considered to be 100-130 ng/mL.","whoIsItFor":"People with thyroid disorders (especially Hashimoto's or Graves' disease), those with autoimmune conditions, individuals with fertility concerns, people living in low-selenium regions, those with malabsorption disorders, anyone with high oxidative stress or chronic inflammation, and people supplementing selenium (to monitor levels).","symptomsAddressed":["Thyroid dysfunction symptoms","Fatigue and weakness","Muscle weakness or pain","Hair loss or brittle hair","Weakened immune function","Cognitive decline","Fertility issues","Nail abnormalities"],"conditionsScreened":["Selenium deficiency","Selenium toxicity","Hashimoto's thyroiditis","Thyroid dysfunction evaluation","Antioxidant status assessment","Keshan disease (severe deficiency)"],"whenToTest":"No fasting required. Avoid selenium supplements for 24-48 hours before testing for accurate baseline results. Recent consumption of Brazil nuts can temporarily elevate levels.","resultsOverview":"Normal serum selenium is typically 70-150 ng/mL. Low levels may impair thyroid function and antioxidant defenses. Optimal levels for thyroid patients are often 100-130 ng/mL. Levels above 200 ng/mL may indicate excess, and toxicity symptoms can occur above 400 ng/mL.","faqs":[{"question":"Why is selenium important for Hashimoto's?","answer":"Selenium reduces thyroid antibodies (TPO and TG) in Hashimoto's patients. It also protects thyroid cells from hydrogen peroxide produced during hormone synthesis. Studies show 200mcg daily can significantly lower antibody levels and improve thyroid ultrasound appearance."},{"question":"Can I get enough selenium from Brazil nuts?","answer":"Yes—just 1-2 Brazil nuts daily provides adequate selenium for most people. However, selenium content varies dramatically based on soil. One nut can contain anywhere from 10-90mcg. Regular testing helps ensure you're in optimal range without excess."},{"question":"What are signs of selenium toxicity?","answer":"Chronic excess causes selenosis: garlic breath, hair loss, brittle nails, skin rashes, metallic taste, and neurological symptoms. Acute toxicity can cause nausea, vomiting, and cardiac problems. This typically requires very high intakes (>400mcg/day) over time."},{"question":"Should I take selenium with thyroid medication?","answer":"Selenium supplements don't interfere with thyroid medication absorption. However, always discuss supplementation with your provider, especially if you have thyroid disease. Selenium needs vary, and blood testing helps determine the right dose for you."}],"relatedTests":["tsh","free-t4","free-t3","tpo-antibodies","thyroglobulin-antibodies","zinc"],"name_es":"Selenio","biomarkers_es":["Selenio"],"description_es":"Mide los niveles de selenio en sangre. Crucial para función tiroidea, defensa antioxidante y salud inmune.","shortName_es":"Selenio","whenToTest_es":"No se requiere ayuno. El selenio puede analizarse en cualquier momento del día. A menudo se ordena junto con pruebas de tiroides.","longDescription_es":"El selenio es un mineral traza esencial que su cuerpo necesita en pequeñas cantidades pero no puede producir por sí mismo. Juega roles críticos en el metabolismo de la hormona tiroidea, defensa antioxidante a través de enzimas glutatión peroxidasa y función inmune.\n\nLa conversión de T4 a la hormona tiroidea activa T3 requiere selenio. La deficiencia de selenio puede empeorar condiciones autoinmunes de tiroides y puede contribuir al hipotiroidismo.\n\nEl contenido de selenio en los alimentos depende en gran medida de los niveles de selenio en el suelo donde se cultivaron. Las nueces de Brasil son excepcionalmente altas en selenio - solo 1-2 nueces al día pueden proporcionar ingesta adecuada.","conditionsScreened_es":["Deficiencia de selenio","Disfunción tiroidea","Enfermedad tiroidea autoinmune","Estado antioxidante","Disfunción inmune"],"shortSummary_es":"El selenio es un mineral traza esencial crucial para la función tiroidea, defensa antioxidante y función inmune. Los niveles bajos están asociados con enfermedades tiroideas y mayor riesgo de cáncer.","whatItMeasures_es":"Esta prueba mide la concentración de selenio en su suero sanguíneo. Los niveles normales típicamente varían de 70-150 ng/mL. El selenio es esencial para la función tiroidea y la defensa antioxidante.","symptomsAddressed_es":["Fatiga","Debilidad muscular","Pérdida de cabello","Infecciones frecuentes","Síntomas tiroideos","Niebla mental"],"whoIsItFor_es":"Personas con trastornos tiroideos, aquellos con problemas de tiroides autoinmune (Hashimoto, Graves), individuos en regiones con suelos bajos en selenio, personas con trastornos gastrointestinales, aquellos con enfermedades crónicas, y cualquier persona que tome suplementos de selenio.","faqs_es":[{"question":"¿Por qué es importante el selenio para la tiroides?","answer":"La tiroides contiene la mayor concentración de selenio de cualquier órgano. El selenio es requerido por las enzimas que convierten T4 a T3 activa y protegen la tiroides del daño oxidativo. La deficiencia puede empeorar la enfermedad tiroidea autoinmune."},{"question":"¿Pueden las nueces de Brasil proporcionar suficiente selenio?","answer":"Sí, las nueces de Brasil son la fuente alimentaria más rica de selenio. Solo 1-2 nueces al día pueden proporcionar la ingesta diaria recomendada. Sin embargo, el contenido varía según el origen, y comer demasiadas puede causar toxicidad por selenio."},{"question":"¿Cuáles son los signos de deficiencia de selenio?","answer":"Los signos incluyen fatiga, debilidad muscular, pérdida de cabello, infecciones frecuentes, niebla mental y empeoramiento de los síntomas tiroideos. La deficiencia severa puede causar enfermedad cardíaca (enfermedad de Keshan)."}],"cptCode":"84255"},{"id":"iodine","questCode":"16599","name":"Iodine, Serum","shortName":"Iodine","description":"Measures iodine levels essential for thyroid hormone production.","category":"vitamin","price":37,"costPrice":34.96,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Iodine"],"turnaroundDays":"3-5","sampleTypes":["serum"],"metaTitle":"Iodine Blood Test - $37 | Thyroid Support Mineral | Justlabs","metaDescription":"Order a serum iodine test for $37. Essential for thyroid hormone production. Identify deficiency or excess. No fasting required. Results in 3-5 days.","h1Title":"Iodine Serum Blood Test","shortSummary":"Iodine is an essential trace mineral required for thyroid hormone production. This test measures blood iodine levels to identify deficiency or excess.","longDescription":"Iodine is a trace mineral that your thyroid gland needs to produce thyroid hormones (T3 and T4). These hormones regulate metabolism, growth, development, and many body functions. Your body cannot make iodine, so it must come from your diet—primarily from iodized salt, seafood, dairy, and seaweed.\n\nIodine deficiency is the leading cause of preventable intellectual disability worldwide and can cause goiter (enlarged thyroid), hypothyroidism, and pregnancy complications. In developed countries with iodized salt, deficiency is less common but can still occur, especially in people who avoid salt, follow restrictive diets, or are pregnant/breastfeeding.\n\nConversely, excess iodine (from supplements or certain medications) can also cause thyroid dysfunction. This test helps identify both ends of the spectrum.","whatItMeasures":"This test measures the concentration of iodine in your blood serum. Results are reported in mcg/L (micrograms per liter). Serum iodine reflects recent dietary intake more than long-term iodine status.","whoIsItFor":"People with unexplained thyroid problems, those following restrictive diets (vegan, low-salt), pregnant or breastfeeding women, individuals taking iodine supplements, those with goiter or thyroid nodules, and anyone with symptoms of iodine deficiency.","symptomsAddressed":["Fatigue and weakness","Weight gain","Cold intolerance","Dry skin and hair","Goiter (enlarged thyroid)","Difficulty concentrating","Memory problems"],"conditionsScreened":["Iodine deficiency","Iodine excess","Hypothyroidism evaluation","Goiter investigation","Thyroid nodule workup"],"whenToTest":"No fasting required. Avoid iodine-containing supplements for 24-48 hours before testing for accurate baseline results. Recent contrast dye from CT scans can temporarily elevate levels.","resultsOverview":"Normal serum iodine typically ranges from 40-92 mcg/L. Low levels suggest dietary insufficiency, while very high levels may indicate excess supplementation or recent iodine exposure. Results should be interpreted alongside thyroid function tests (TSH, Free T4).","faqs":[{"question":"Is iodine deficiency common?","answer":"In countries with iodized salt programs, deficiency is uncommon but can occur in people who avoid salt, follow vegan diets, or have increased needs (pregnancy). Globally, iodine deficiency remains a significant public health issue."},{"question":"Should I take iodine supplements?","answer":"Most people get adequate iodine from diet. Supplementation may be appropriate for vegans, those avoiding salt, or during pregnancy (prenatal vitamins contain iodine). Excess iodine can worsen thyroid conditions, so test before supplementing."},{"question":"Is the urine iodine test more accurate?","answer":"Urine iodine (especially 24-hour collection) is considered more reliable for assessing overall iodine status because it reflects recent intake. Serum iodine can be useful but varies more with recent diet. Your provider will recommend the appropriate test."},{"question":"Can iodine affect my thyroid medication?","answer":"Yes, iodine intake can affect thyroid function and medication needs. If you have thyroid disease, significant changes in iodine intake may require thyroid medication adjustments. Discuss any supplements with your provider."}],"relatedTests":["tsh","free-t4","free-t3","thyroid-panel-complete","tpo-antibodies"],"createdBy":"script","name_es":"Yodo Sérico","biomarkers_es":["Yodo"],"description_es":"Mide los niveles de yodo en sangre. Esencial para producción de hormona tiroidea.","shortName_es":"Yodo","whenToTest_es":"Las muestras de orina pueden recolectarse en cualquier momento. Para resultados más precisos, puede solicitarse una recolección de orina de 24 horas. Evite los mariscos y suplementos de yodo antes de la prueba.","longDescription_es":"El yodo es un componente esencial de las hormonas tiroideas T3 y T4. Su tiroides absorbe yodo de su torrente sanguíneo para producir estas hormonas, que regulan el metabolismo, el crecimiento y el desarrollo.\n\nLa deficiencia de yodo puede causar hipotiroidismo, bocio (agrandamiento de la tiroides) y, durante el embarazo, deterioro cognitivo severo en el niño. Aunque la sal yodada ha eliminado en gran medida la deficiencia en muchos países, aún ocurre, particularmente en aquellos que evitan la sal o siguen dietas restringidas.\n\nTanto muy poco como demasiado yodo pueden afectar la función tiroidea. La ingesta excesiva de yodo puede desencadenar o empeorar la enfermedad tiroidea autoinmune en individuos susceptibles.","conditionsScreened_es":["Deficiencia de yodo","Hipotiroidismo","Bocio","Nódulos tiroideos","Toxicidad por yodo"],"shortSummary_es":"El yodo es un mineral traza esencial requerido para la síntesis de hormona tiroidea. La deficiencia es la causa prevenible más común de deterioro cognitivo en todo el mundo.","whatItMeasures_es":"Esta prueba mide los niveles de yodo, típicamente a través de una muestra de orina. El yodo es esencial para la producción de hormona tiroidea.","symptomsAddressed_es":["Fatiga","Aumento de peso","Inflamación del cuello","Sensibilidad al frío","Piel seca","Pérdida de cabello"],"whoIsItFor_es":"Personas con trastornos tiroideos, mujeres embarazadas o en lactancia, aquellos con dietas restringidas (veganos, sin lácteos), individuos que evitan la sal yodada, personas con bocio o nódulos tiroideos, y aquellos que viven en regiones con deficiencia de yodo.","faqs_es":[{"question":"¿Cuánto yodo necesito?","answer":"Los adultos necesitan 150 mcg diarios, aumentando a 220 mcg durante el embarazo y 290 mcg durante la lactancia. La mayoría de las personas obtienen suficiente de sal yodada, lácteos y mariscos."},{"question":"¿Las dietas veganas proporcionan suficiente yodo?","answer":"Las dietas veganas pueden ser bajas en yodo ya que las fuentes principales son mariscos, lácteos y huevos. Las algas marinas son una fuente vegana pero varían ampliamente en contenido. Muchos veganos se benefician de suplementos de yodo."},{"question":"¿Puede demasiado yodo dañar la tiroides?","answer":"Sí, la ingesta excesiva de yodo puede desencadenar hipertiroidismo o hipotiroidismo, particularmente en aquellos con enfermedad tiroidea subyacente. Este es el por qué los suplementos de algas marinas deben usarse con precaución."}],"createdAt":{"_nanoseconds":62000000,"_seconds":1769634721},"cptCode":"82542"},{"id":"methylmalonic-acid","questCode":"34879","name":"Methylmalonic Acid (MMA)","shortName":"MMA","description":"Sensitive marker for B12 deficiency at the cellular level. Elevated when B12 is functionally low.","category":"vitamin","price":44,"costPrice":34.69,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Methylmalonic Acid"],"turnaroundDays":"3-5","sampleTypes":["serum"],"metaTitle":"MMA Test - $44 | B12 Deficiency Marker | Justlabs","metaDescription":"Order a Methylmalonic Acid (MMA) test for $44. The most sensitive marker for B12 deficiency at the cellular level. No fasting required. Results in 3-5 days.","h1Title":"Methylmalonic Acid (MMA) Blood Test","shortSummary":"MMA is the most sensitive and specific marker for B12 deficiency at the tissue level. When B12 is low, MMA accumulates because B12 is required to convert it to succinyl-CoA.","longDescription":"Methylmalonic Acid (MMA) is a metabolite that accumulates when vitamin B12 is deficient at the cellular level. B12 is a required cofactor for the enzyme that converts MMA to succinyl-CoA. When B12 is low—even \"low normal\"—this conversion slows and MMA builds up in the blood.\n\nMMA testing is considered more sensitive and specific for B12 deficiency than serum B12 levels alone. This is because:\n\n1. Serum B12 can appear normal even when cellular B12 is functionally inadequate\n2. Some people have \"subclinical\" B12 deficiency with normal B12 but elevated MMA\n3. MMA elevates before neurological symptoms develop, allowing earlier intervention\n\nMMA is particularly valuable when B12 levels are in the low-normal \"gray zone\" (200-400 pg/mL) and you need to determine if true deficiency exists. Elevated MMA confirms the body isn't getting enough usable B12.","whatItMeasures":"This test measures the concentration of methylmalonic acid in your blood, reported in nmol/L or µmol/L. Normal MMA is typically <300 nmol/L (<0.30 µmol/L). Elevated MMA (>300 nmol/L) indicates B12 deficiency at the cellular level, even if serum B12 appears normal.","whoIsItFor":"People with low-normal B12 levels needing clarification, those with neurological symptoms despite \"normal\" B12, vegetarians and vegans at risk for B12 deficiency, elderly individuals (B12 absorption declines with age), patients with malabsorption conditions, and anyone on metformin or proton pump inhibitors long-term.","symptomsAddressed":["Fatigue and weakness","Numbness or tingling (neuropathy)","Balance problems","Memory issues or cognitive decline","Depression","Pale or jaundiced skin","Glossitis (sore tongue)","Shortness of breath"],"conditionsScreened":["Vitamin B12 deficiency","Subclinical B12 deficiency","Pernicious anemia","B12 malabsorption","Peripheral neuropathy evaluation","Cognitive decline evaluation","Methylmalonic acidemia (rare genetic condition)"],"whenToTest":"No fasting required. MMA can be tested any time. It is most useful when serum B12 is in the \"gray zone\" (200-400 pg/mL) or when symptoms suggest B12 deficiency despite normal B12 levels.","resultsOverview":"Normal MMA is <300 nmol/L. Elevated MMA (>300 nmol/L) with low or low-normal B12 confirms B12 deficiency. Elevated MMA with normal B12 suggests subclinical deficiency or early deficiency. Very high MMA with kidney disease may reflect impaired excretion rather than B12 deficiency—clinical correlation is needed.","faqs":[{"question":"Why test MMA instead of just B12?","answer":"Serum B12 levels can be misleading. You can have \"normal\" B12 but still be functionally deficient at the cellular level. MMA is a functional marker that rises when your cells actually lack B12. It catches deficiency earlier and more reliably than B12 alone."},{"question":"What causes elevated MMA besides B12 deficiency?","answer":"Kidney disease is the main non-B12 cause of elevated MMA because the kidneys excrete MMA. Severe dehydration and rare genetic conditions (methylmalonic acidemia) can also elevate MMA. Your healthcare provider will consider kidney function when interpreting results."},{"question":"Should I test homocysteine too?","answer":"Homocysteine also rises with B12 deficiency, but it's less specific—folate deficiency and other factors also elevate homocysteine. MMA is more specific for B12. Some providers test both: elevated MMA + elevated homocysteine strongly suggests B12 deficiency; elevated homocysteine alone might indicate folate deficiency."},{"question":"How do I treat elevated MMA?","answer":"If MMA is elevated due to B12 deficiency, B12 supplementation (oral high-dose or injections) typically normalizes MMA within weeks to months. Retest MMA 2-3 months after starting treatment to confirm improvement. Underlying causes of deficiency should also be addressed."}],"relatedTests":["vitamin-b12","homocysteine","folate-serum","cbc-diff"],"createdBy":"script","name_es":"Ácido Metilmalónico (AMM)","biomarkers_es":["Ácido Metilmalónico"],"description_es":"Marcador sensible para deficiencia de vitamina B12. Más preciso que los niveles séricos de B12 para detectar deficiencia.","shortName_es":"AMM","whenToTest_es":"No se requiere ayuno. MMA puede analizarse en cualquier momento. Es particularmente útil cuando B12 sérica está en el rango bajo-normal o límite.","longDescription_es":"El ácido metilmalónico (MMA) es un metabolito que se acumula cuando la B12 es insuficiente. La B12 es necesaria para una enzima que convierte MMA a succinato. Cuando B12 es deficiente, MMA se acumula.\n\nMMA es más sensible que B12 sérica sola porque detecta deficiencia funcional - cuando las células no tienen suficiente B12 para funcionar apropiadamente. Algunas personas tienen B12 sérica que parece adecuada pero aún tienen MMA elevada, indicando deficiencia a nivel tisular.","conditionsScreened_es":["Deficiencia funcional de B12","Deficiencia de B12 a nivel tisular","Causas de neuropatía","Demencia relacionada con B12"],"shortSummary_es":"Un marcador sensible de deficiencia funcional de B12. MMA elevada indica deficiencia de B12 a nivel celular, incluso cuando los niveles séricos de B12 parecen normales.","whatItMeasures_es":"Esta prueba mide los niveles de ácido metilmalónico en sangre u orina. El MMA se eleva cuando la vitamina B12 es insuficiente a nivel celular, haciéndola un marcador más sensible de deficiencia funcional de B12 que los niveles séricos de B12 solos.","symptomsAddressed_es":["Entumecimiento/hormigueo","Problemas de memoria","Fatiga","Debilidad","Problemas de equilibrio"],"whoIsItFor_es":"Personas con B12 sérica límite baja, aquellos con síntomas neurológicos inexplicables, individuos evaluando deficiencia funcional de B12, veganos y vegetarianos, ancianos, y aquellos con malabsorción.","faqs_es":[{"question":"¿Por qué analizar MMA si mi B12 es normal?","answer":"B12 sérica puede parecer normal mientras que los tejidos aún son deficientes. MMA elevada con B12 normal indica que las células no están obteniendo suficiente B12 para funcionar apropiadamente."},{"question":"¿Qué causa MMA elevada además de deficiencia de B12?","answer":"La enfermedad renal puede elevar MMA porque es excretada por los riñones. Trastornos genéticos raros que afectan el metabolismo de MMA también pueden causar elevación."},{"question":"¿Debería siempre analizar MMA con B12?","answer":"MMA es más útil cuando B12 está en el rango bajo-normal (200-400 pg/mL) y los síntomas sugieren deficiencia. Con B12 claramente normal o claramente baja, MMA puede no agregar mucha información."}],"createdAt":{"_nanoseconds":174000000,"_seconds":1769634721},"cptCode":"83921"},{"id":"cortisol-total","questCode":"367","name":"Cortisol, Total","shortName":"Total Cortisol","description":"Measures total cortisol levels to assess adrenal function and stress response.","category":"hormone","price":15,"costPrice":11.28,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Cortisol"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Cortisol Blood Test - $15 | Adrenal & Stress Hormone | Justlabs","metaDescription":"Order a Total Cortisol blood test for $15. Assess adrenal function and stress hormone levels. No fasting required. Results in 1-2 days.","h1Title":"Total Cortisol Blood Test","shortSummary":"Cortisol is your body's primary stress hormone, produced by the adrenal glands. This test measures total cortisol levels to assess adrenal function and stress response.","longDescription":"Cortisol is a vital hormone produced by the adrenal glands that helps regulate metabolism, immune response, blood pressure, and the body's reaction to stress. Often called the \"stress hormone,\" cortisol follows a natural daily rhythm—highest in the morning to help you wake up, then declining throughout the day. This blood test measures total cortisol (both bound and free) and is commonly used to evaluate adrenal gland function, diagnose conditions like Cushing's syndrome (excess cortisol) or Addison's disease (cortisol deficiency), and investigate symptoms related to chronic stress, fatigue, or metabolic dysfunction.","whatItMeasures":"This test measures the total amount of cortisol in your blood, including cortisol bound to proteins (cortisol-binding globulin and albumin) and free cortisol. Because cortisol levels vary throughout the day, the timing of your blood draw matters for interpretation.","whoIsItFor":"People experiencing unexplained fatigue, muscle weakness, or weight changes, those with symptoms of high cortisol (moon face, easy bruising, high blood pressure), individuals with suspected adrenal insufficiency, anyone investigating chronic stress effects, and those with abnormal ACTH stimulation test results.","symptomsAddressed":["Chronic fatigue","Unexplained weight gain or loss","Muscle weakness","High blood pressure","Easy bruising","Mood changes","Sleep disturbances","Difficulty handling stress"],"conditionsScreened":["Cushing's syndrome","Addison's disease","Adrenal insufficiency","Pituitary disorders","Chronic stress effects","Adrenal fatigue evaluation"],"whenToTest":"No fasting is required, but timing matters. Morning (8 AM) cortisol tests are standard because levels are highest then. For suspected Cushing's, late-night testing may be requested. Inform your provider of any corticosteroid medications, as these affect results.","resultsOverview":"Normal morning cortisol typically ranges from 6-23 mcg/dL, with afternoon values lower. Very high levels may suggest Cushing's syndrome, while very low levels can indicate Addison's disease or adrenal insufficiency. Results should be interpreted with clinical context and may require additional testing like ACTH stimulation or dexamethasone suppression tests.","faqs":[{"question":"Why does timing matter for cortisol testing?","answer":"Cortisol follows a circadian rhythm—highest in the early morning (around 8 AM) and lowest around midnight. A single blood test is most useful when drawn in the morning, establishing your peak level. For diagnosing certain conditions, multiple samples at different times may be needed."},{"question":"What is adrenal fatigue?","answer":"Adrenal fatigue is a term used in alternative medicine suggesting that chronic stress exhausts the adrenal glands. It is not recognized as a medical diagnosis by endocrinology organizations. However, symptoms like fatigue can result from various treatable conditions, and cortisol testing helps evaluate adrenal function."},{"question":"Can stress affect my cortisol results?","answer":"Yes, acute stress—including stress from the blood draw itself—can temporarily elevate cortisol. Chronic stress patterns may alter your cortisol rhythm. For the most accurate baseline reading, try to stay calm before your test and inform your provider about significant stressors."},{"question":"Should I test free cortisol instead?","answer":"Total cortisol is the standard screening test. Free cortisol testing (typically via saliva or 24-hour urine) may be ordered if your total cortisol is borderline or if you have conditions affecting cortisol-binding proteins. Your healthcare provider will recommend the appropriate test."}],"relatedTests":["dhea-s","testosterone-free-total","thyroid-panel-complete","cmp"],"createdBy":"script","name_es":"Cortisol Total","biomarkers_es":["Cortisol"],"description_es":"Mide los niveles totales de cortisol en sangre. Evalúa la función de la glándula suprarrenal y la respuesta al estrés.","shortName_es":"Cortisol","whenToTest_es":"El momento es crucial para esta prueba. Las muestras matutinas (8-9 AM) son las más comunes ya que el cortisol es normalmente más alto en este momento. Se puede solicitar una muestra nocturna (11 PM-medianoche) para detectar el síndrome de Cushing.","longDescription_es":"El cortisol es una hormona esteroide producida por las glándulas suprarrenales. A menudo llamada la \"hormona del estrés\", juega roles vitales en el metabolismo, respuesta inmune, regulación de la presión arterial y el ciclo sueño-vigilia.\n\nEl cortisol sigue un patrón diurno natural - más alto en la mañana para ayudarlo a despertar y más bajo en la noche para permitir el sueño. Las alteraciones en este patrón o niveles anormales pueden indicar disfunción suprarrenal.\n\n**Cortisol alto** puede indicar síndrome de Cushing, estrés crónico o tumores productores de cortisol. **Cortisol bajo** puede indicar enfermedad de Addison (insuficiencia suprarrenal) o problemas pituitarios.","conditionsScreened_es":["Síndrome de Cushing","Enfermedad de Addison","Insuficiencia suprarrenal","Tumores suprarrenales","Trastornos pituitarios"],"shortSummary_es":"El cortisol es la principal hormona del estrés de su cuerpo, producida por las glándulas suprarrenales. Niveles anormalmente altos o bajos pueden indicar trastornos suprarrenales o desequilibrios del eje hipotalámico-pituitario.","whatItMeasures_es":"Esta prueba mide el nivel total de cortisol en su sangre, incluyendo tanto el cortisol unido a proteínas como el libre. Los niveles normales varían según la hora del día - más altos en la mañana (6-23 mcg/dL) y más bajos en la noche (3-17 mcg/dL).","symptomsAddressed_es":["Fatiga crónica","Aumento de peso inexplicable","Debilidad muscular","Presión arterial alta","Cambios en la piel","Dificultad para dormir"],"whoIsItFor_es":"Personas con fatiga inexplicable o cambios de energía, aquellos con aumento o pérdida de peso inexplicable, individuos con presión arterial alta o baja, personas con debilidad muscular, aquellos con cambios en la pigmentación de la piel, y cualquier persona con sospecha de trastornos suprarrenales.","faqs_es":[{"question":"¿Por qué importa la hora del día?","answer":"El cortisol sigue un ritmo circadiano - alcanza su punto máximo alrededor de las 8 AM y alcanza su punto más bajo alrededor de la medianoche. Probar en el momento equivocado puede llevar a una mala interpretación de los resultados. Las pruebas matutinas detectan niveles bajos (Addison), las pruebas nocturnas detectan niveles altos (Cushing)."},{"question":"¿El estrés puede afectar mis resultados?","answer":"Sí, el estrés agudo puede elevar el cortisol. Sin embargo, los resultados elevados persistentes sugieren un problema subyacente. Si el estrés agudo es una preocupación, su médico puede repetir la prueba o ordenar pruebas adicionales."},{"question":"¿Cuál es la diferencia entre cortisol total y libre?","answer":"El cortisol total mide todo el cortisol, incluyendo el unido a proteínas. El cortisol libre mide solo la porción activa no unida. Las condiciones que afectan las proteínas de unión (embarazo, anticonceptivos) pueden afectar el cortisol total sin cambiar el cortisol libre."}],"createdAt":{"_nanoseconds":296000000,"_seconds":1769634721},"cptCode":"82533"},{"id":"dhea-s","questCode":"402","name":"DHEA-Sulfate","shortName":"DHEA-S","description":"Measures DHEA-S, a precursor hormone from the adrenal glands. Declines with age.","category":"hormone","price":14,"costPrice":9,"fastingRequired":false,"labVendor":"Quest","biomarkers":["DHEA-Sulfate"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"DHEA-Sulfate (DHEA-S) Test - $14 | Adrenal Hormone | Justlabs","metaDescription":"Order a DHEA-Sulfate blood test for $14. Measure this important adrenal hormone that declines with age. No fasting required. Results in 1-2 days.","h1Title":"DHEA-Sulfate (DHEA-S) Blood Test","shortSummary":"DHEA-S is the most abundant hormone in your body and serves as a precursor to testosterone and estrogen. Levels naturally decline with age, making this test useful for assessing adrenal function and hormonal aging.","longDescription":"DHEA-Sulfate (DHEA-S) is a hormone produced primarily by the adrenal glands, with small amounts made by the ovaries or testes. It serves as a precursor (building block) for sex hormones including testosterone and estrogen. DHEA-S is the most abundant steroid hormone in the body and remains stable throughout the day, making it a reliable marker of adrenal androgen production. Levels peak in your mid-20s and then gradually decline with age—by age 70-80, levels may be only 10-20% of peak values. This test helps evaluate adrenal function, investigate symptoms of androgen excess or deficiency, and assess overall hormonal health.","whatItMeasures":"This test measures the sulfated form of DHEA (DHEA-S) in your blood. Unlike DHEA itself, which fluctuates throughout the day, DHEA-S has a long half-life and stable levels, providing a reliable snapshot of your adrenal androgen production.","whoIsItFor":"Women with symptoms of excess androgens (acne, hirsutism, hair loss), men with low testosterone symptoms, anyone evaluating adrenal function, people interested in hormonal aging markers, those with suspected adrenal tumors, and individuals considering DHEA supplementation.","symptomsAddressed":["Fatigue and low energy","Low libido","Depression or mood changes","Difficulty building muscle","Excess hair growth in women","Acne","Male-pattern hair loss in women","Signs of premature aging"],"conditionsScreened":["Adrenal insufficiency","PCOS (polycystic ovary syndrome)","Adrenal tumors","Congenital adrenal hyperplasia","Premature adrenarche","Hormonal aging assessment"],"whenToTest":"No fasting is required. DHEA-S levels are stable throughout the day, so testing can be done at any time. If you are taking DHEA supplements, discuss timing with your healthcare provider.","resultsOverview":"Normal ranges vary significantly by age and sex. Women typically have lower levels than men. High DHEA-S in women may suggest PCOS or adrenal tumors, while low levels in either sex may indicate adrenal insufficiency or reflect normal aging. Results should be interpreted in context of age, symptoms, and other hormone levels.","faqs":[{"question":"Should I take DHEA supplements if my levels are low?","answer":"Low DHEA-S is often a normal part of aging. DHEA supplements are available over-the-counter, but evidence for benefits is mixed, and supplementation may have side effects including acne, hair loss, and hormonal imbalances. Consult your healthcare provider before supplementing."},{"question":"What does high DHEA-S mean in women?","answer":"Elevated DHEA-S in women can cause symptoms like excess facial/body hair, acne, hair thinning, and irregular periods. Common causes include PCOS (polycystic ovary syndrome), congenital adrenal hyperplasia, or rarely, adrenal tumors. Further testing may be needed to determine the cause."},{"question":"Is DHEA-S the same as DHEA?","answer":"DHEA and DHEA-S are related but different. DHEA-S is the sulfated, storage form that circulates in higher concentrations and has a longer half-life. The body can convert between the two forms. Blood tests typically measure DHEA-S because its stable levels make interpretation more reliable."},{"question":"Does DHEA-S affect athletic performance?","answer":"DHEA and DHEA-S are banned by most sports organizations as potential performance enhancers because they can convert to testosterone. However, evidence for performance benefits from DHEA supplementation is limited. Natural DHEA-S levels reflect adrenal function rather than training status."}],"relatedTests":["testosterone-free-total","cortisol-total","estradiol","shbg"],"createdBy":"script","name_es":"DHEA-Sulfato","biomarkers_es":["DHEA-S"],"whenToTest_es":"No se requiere ayuno. Los niveles de DHEA-S son relativamente estables a lo largo del día y del ciclo menstrual, lo que la hace una prueba conveniente.","metaDescription_es":"Ordena una prueba de DHEA-S por $14. Evalúa la función adrenal y los precursores de hormonas sexuales. Disminuye con la edad. Resultados en 1-2 días.","h1Title_es":"Análisis de Sangre de DHEA-Sulfato","metaTitle_es":"Prueba de DHEA-Sulfato - $14 | Hormona Adrenal | Justlabs","shortName_es":"DHEA-S","symptomsAddressed_es":["Fatiga","Baja libido","Pérdida de masa muscular","Mala recuperación del ejercicio","Síntomas de envejecimiento"],"whoIsItFor_es":"Cualquier persona con fatiga, baja libido o síntomas de envejecimiento, quienes sospechan problemas adrenales, mujeres con exceso de vello o acné (DHEA alta), quienes evalúan el equilibrio hormonal general, y personas interesadas en marcadores de longevidad.","resultsOverview_es":"Los resultados deben compararse con rangos apropiados para la edad. DHEA-S baja puede indicar disfunción adrenal o envejecimiento normal. DHEA-S alta en mujeres puede indicar SOP o tumores adrenales.","longDescription_es":"La DHEA (Dehidroepiandrosterona) y su forma sulfatada DHEA-S son las hormonas esteroides más abundantes en el cuerpo. Producida por las glándulas adrenales, la DHEA sirve como precursora tanto de la testosterona como del estrógeno.\n\nLos niveles de DHEA-S:\n• Alcanzan su pico en los 20s\n• Disminuyen aproximadamente 2% por año después\n• Para los 70-80 años, son 10-20% de los niveles pico\n\nLa DHEA-S baja está asociada con fatiga, baja libido y envejecimiento acelerado. Sin embargo, la suplementación sigue siendo controversial.","conditionsScreened_es":["Disfunción adrenal","SOP (si está elevada)","Marcadores de envejecimiento","Desequilibrio hormonal"],"description_es":"Mide DHEA-S, una hormona adrenal precursora de testosterona y estrógeno.","shortSummary_es":"DHEA-S es producida por las glándulas adrenales y es precursora de las hormonas sexuales. Los niveles alcanzan su pico en los 20s y disminuyen constantemente con la edad.","whatItMeasures_es":"Esta prueba mide DHEA-S en mcg/dL. Los niveles normales varían por edad y sexo. Mujeres: 65-380 mcg/dL. Hombres: 80-560 mcg/dL. Los niveles más altos se ven en adultos jóvenes.","createdAt":{"_nanoseconds":502000000,"_seconds":1769634721},"cptCode":"82627"},{"id":"testosterone-free-total","questCode":"36170","name":"Testosterone, Free & Total","shortName":"Testosterone","description":"Comprehensive testosterone panel measuring both free and total testosterone levels.","category":"hormone","price":34,"costPrice":30,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Total Testosterone","Free Testosterone"],"turnaroundDays":"2-3","popular":true,"sampleTypes":["serum"],"metaTitle":"Free & Total Testosterone Test - $34 | Complete Panel | Justlabs","metaDescription":"Order a complete testosterone test for $34 measuring both free and total testosterone. Essential for men and women. No fasting. Results in 2-3 days.","h1Title":"Free & Total Testosterone Blood Test","shortSummary":"This comprehensive testosterone panel measures both total testosterone and free testosterone—the biologically active form. Essential for evaluating hormone status in both men and women.","longDescription":"Testosterone is the primary male sex hormone, though women produce it in smaller amounts too. Total testosterone includes both testosterone bound to proteins (SHBG and albumin) and free testosterone. Only free testosterone can enter cells and exert biological effects.\n\nThis comprehensive panel measures both forms because total testosterone alone can be misleading. A man with normal total testosterone but high SHBG may have low free testosterone, explaining symptoms of low T. Conversely, low total testosterone with low SHBG may have adequate free testosterone.\n\nIn men, testosterone regulates libido, muscle mass, bone density, fat distribution, and mood. In women, it affects libido, energy, and muscle/bone health. Both too much and too little testosterone can cause symptoms.","whatItMeasures":"This test measures: (1) Total testosterone (ng/dL) - all testosterone in blood, and (2) Free testosterone (pg/mL or calculated percentage) - the biologically active, unbound fraction. Free testosterone is measured by **equilibrium dialysis**, and total testosterone by **liquid chromatography/tandem mass spectrometry (LC/MS/MS)** — the reference methods for each, rather than a direct immunoassay or a value calculated from SHBG.","whoIsItFor":"Men with symptoms of low testosterone (fatigue, low libido, erectile dysfunction), women with symptoms of high testosterone (acne, excess hair growth, irregular periods), anyone evaluating hormone status, athletes monitoring hormone levels, and those on testosterone therapy.","symptomsAddressed":["Low libido","Erectile dysfunction","Fatigue and low energy","Decreased muscle mass","Increased body fat","Depression or irritability","Hot flashes (men)","Excess body hair (women)","Acne","Male-pattern hair loss"],"conditionsScreened":["Hypogonadism (low testosterone)","PCOS evaluation","Testosterone therapy monitoring","Infertility workup","Delayed puberty evaluation","Adrenal disorders"],"whenToTest":"No fasting required, but test in the morning (7-10 AM) when testosterone levels peak in men. For women, any time is acceptable. Wait at least 24 hours after last testosterone injection if on therapy.","resultsOverview":"Normal ranges vary by age and sex. Men: Total testosterone 300-1000 ng/dL, Free testosterone 5-21 pg/mL. Women: Total testosterone 15-70 ng/dL, Free testosterone 0.3-1.9 pg/mL. Interpretation depends on symptoms and should include both values.","faqs":[{"question":"Why test both free and total testosterone?","answer":"Total testosterone can be normal while free testosterone is low (due to high SHBG). Since only free testosterone is biologically active, measuring both gives a complete picture. Many men with \"normal\" total T actually have low free T."},{"question":"What causes low testosterone in men?","answer":"Primary causes include aging (testosterone declines ~1% per year after 30), obesity, sleep apnea, chronic illness, certain medications, pituitary problems, and testicular dysfunction. Lifestyle factors like poor sleep, stress, and lack of exercise also contribute."},{"question":"Can women have testosterone problems?","answer":"Yes. Low testosterone in women can cause low libido, fatigue, and decreased sense of wellbeing. High testosterone (often from PCOS) causes acne, excess hair growth, hair loss, and irregular periods. Both should be evaluated."},{"question":"How can I increase testosterone naturally?","answer":"Evidence-based methods include: strength training, adequate sleep (7-9 hours), maintaining healthy weight, reducing stress, vitamin D optimization, zinc intake, and limiting alcohol. Avoid excessive endurance exercise and calorie restriction."},{"question":"How is this test performed? Is free testosterone measured by dialysis?","answer":"Yes. This is Quest Diagnostics test code 36170 (CPT 84402 and 84403). Free testosterone is measured by equilibrium dialysis, and total testosterone by liquid chromatography/tandem mass spectrometry (LC/MS/MS). Neither value comes from a direct immunoassay, and free testosterone is not estimated from SHBG. This matters because equilibrium dialysis is the reference method for free testosterone and stays reliable when SHBG is abnormal — which is common with obesity, thyroid or liver disease, and older age — situations where calculated free testosterone can be misleading. LC/MS/MS is likewise more accurate than immunoassay at the low concentrations typical of women and of men with hypogonadism."}],"relatedTests":["shbg","estradiol","dhea-s","lh","fsh"],"createdBy":"script","name_es":"Testosterona Libre y Total","biomarkers_es":["Testosterona Total","Testosterona Libre"],"description_es":"Panel completo de testosterona que mide niveles totales y libres para evaluación precisa del estado hormonal.","shortName_es":"Testosterona L&T","whenToTest_es":"Analizar entre las 7-10 AM cuando los niveles de testosterona son más altos y estables. El ayuno no es requerido pero puede proporcionar resultados más consistentes. Evite el ejercicio intenso 24 horas antes de la prueba.","longDescription_es":"La testosterona es la hormona sexual masculina principal, aunque las mujeres también la producen en cantidades menores. Juega roles clave en la masa muscular, densidad ósea, distribución de grasa, producción de glóbulos rojos, deseo sexual y estado de ánimo.\n\nAproximadamente el 98% de la testosterona está unida a proteínas (SHBG y albúmina), dejando solo el 2% como testosterona \"libre\" que puede afectar directamente los tejidos. A veces, la testosterona total puede parecer normal mientras que la testosterona libre es baja debido a SHBG alta.\n\n**En hombres:** Los niveles típicamente alcanzan su punto máximo en los 20s y disminuyen aproximadamente 1% por año después de los 30. Los síntomas de T baja incluyen fatiga, disminución del deseo sexual, disfunción eréctil, pérdida de músculo y cambios de humor.\n\n**En mujeres:** Los niveles son aproximadamente 1/10 de los niveles masculinos pero aún esenciales. Los niveles altos pueden indicar SOP u otras condiciones.","conditionsScreened_es":["Hipogonadismo","Síndrome de ovario poliquístico (SOP)","Problemas de fertilidad","Tumores suprarrenales/testiculares","Trastornos pituitarios"],"shortSummary_es":"Mide tanto la testosterona total como la libre para dar una imagen completa de su estado hormonal. La testosterona libre es la porción activa que afecta los tejidos.","symptomsAddressed_es":["Fatiga","Bajo deseo sexual","Disfunción eréctil","Pérdida de masa muscular","Aumento de grasa corporal","Cambios de humor","Acné (mujeres)","Exceso de vello facial (mujeres)"],"whoIsItFor_es":"Hombres con síntomas de testosterona baja (fatiga, bajo deseo sexual, disfunción eréctil), mujeres con síntomas de testosterona alta (acné, exceso de vello, irregularidades menstruales), cualquier persona con problemas de fertilidad, individuos con pérdida de masa muscular inexplicable, y aquellos que monitorean la terapia de testosterona.","createdAt":{"_nanoseconds":598000000,"_seconds":1769634721},"cptCode":"84402, 84403","whatItMeasures_es":"Esta prueba mide tanto la testosterona total como la libre. La testosterona total incluye toda la testosterona en su sangre, mientras que la testosterona libre mide solo la porción no unida a proteínas, que es biológicamente activa. La testosterona libre se mide por **diálisis de equilibrio**, y la testosterona total por **cromatografía líquida con espectrometría de masas en tándem (LC/MS/MS)** — los métodos de referencia para cada una, en lugar de un inmunoensayo directo o un valor calculado a partir de la SHBG.","faqs_es":[{"question":"¿Por qué medir total y libre?","answer":"La testosterona total puede ser engañosa. Si SHBG es alta, más testosterona está unida e inactiva, así que incluso con T total normal, la T libre puede ser baja. Medir ambos da la imagen completa."},{"question":"¿Qué causa la testosterona baja?","answer":"Las causas incluyen envejecimiento, obesidad, diabetes, enfermedad crónica, medicamentos (opioides, esteroides), apnea del sueño, lesión testicular, trastornos pituitarios y ciertos tratamientos médicos."},{"question":"¿Debería considerar la terapia de testosterona?","answer":"La decisión depende de los síntomas, resultados de laboratorio y salud general. La TRT tiene beneficios pero también riesgos. Un profesional de salud puede ayudarlo a sopesar las opciones basándose en su situación específica."},{"question":"¿Cómo se realiza esta prueba? ¿La testosterona libre se mide por diálisis?","answer":"Sí. Es la prueba 36170 de Quest Diagnostics (CPT 84402 y 84403). La testosterona libre se mide por diálisis de equilibrio, y la testosterona total por cromatografía líquida con espectrometría de masas en tándem (LC/MS/MS). Ninguno de los dos valores proviene de un inmunoensayo directo, y la testosterona libre no se estima a partir de la SHBG. Esto importa porque la diálisis de equilibrio es el método de referencia para la testosterona libre y sigue siendo confiable cuando la SHBG está alterada — algo común con obesidad, enfermedad tiroidea o hepática y edad avanzada — situaciones en las que la testosterona libre calculada puede ser engañosa. La LC/MS/MS también es más precisa que el inmunoensayo en las concentraciones bajas típicas de las mujeres y de los hombres con hipogonadismo."}]},{"id":"estradiol","questCode":"4021","name":"Estradiol","shortName":"Estradiol","description":"Measures the primary form of estrogen. Important for reproductive health in both men and women.","category":"hormone","price":15,"costPrice":10,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Estradiol"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Estradiol Test - $15 | E2 Estrogen Level Test | Justlabs","metaDescription":"Order an Estradiol (E2) blood test for $15. Measure your primary estrogen level for fertility, menopause, or hormone balance. Results in 1-2 days.","h1Title":"Estradiol (E2) Blood Test","shortSummary":"Estradiol (E2) is the most potent and predominant form of estrogen in the body, playing a crucial role in reproductive health, bone density, and cardiovascular function in both women and men.","longDescription":"Estradiol is the primary estrogen hormone produced mainly by the ovaries in women and in smaller amounts by the testes in men and adrenal glands in both sexes. It's essential for reproductive function, bone health, brain function, and cardiovascular protection.\n\nIn women, estradiol levels fluctuate throughout the menstrual cycle, peaking just before ovulation. It's responsible for the development of secondary sexual characteristics, regulating the menstrual cycle, and maintaining pregnancy. During menopause, estradiol levels decline significantly, leading to symptoms like hot flashes and bone loss.\n\nIn men, estradiol is important for bone health, brain function, and libido. However, elevated levels can cause gynecomastia (breast enlargement) and other feminizing effects.\n\nTesting estradiol helps evaluate fertility issues, menstrual irregularities, menopause status, hormone therapy effectiveness, and hormonal imbalances in both sexes.","whatItMeasures":"This test measures estradiol (E2) concentration in pg/mL. Normal ranges vary significantly based on sex, age, and menstrual cycle phase in women. Premenopausal women range from 30-400 pg/mL depending on cycle day, postmenopausal women typically below 30 pg/mL, and men usually 10-40 pg/mL.","whoIsItFor":"Women experiencing menstrual irregularities or infertility, women in perimenopause or menopause, women on hormone replacement therapy, men with gynecomastia or low libido, anyone evaluating hormonal imbalances, couples undergoing fertility treatment.","symptomsAddressed":["Irregular or absent periods","Hot flashes and night sweats","Vaginal dryness","Mood changes","Decreased libido","Difficulty conceiving","Gynecomastia in men","Bone density concerns"],"conditionsScreened":["Menopause","Premature ovarian failure","PCOS","Infertility","Hypogonadism","Estrogen-producing tumors","Gynecomastia","Osteoporosis risk"],"whenToTest":"No fasting required. For menstruating women, timing matters: test on days 2-5 for baseline or day 12-14 to assess ovulation. For fertility treatment, follow your provider's instructions. Postmenopausal women and men can test anytime.","resultsOverview":"Results depend on your sex and situation. Premenopausal women see wide variations (30-400 pg/mL) based on cycle phase. Postmenopausal women typically have levels below 30 pg/mL. Men normally range 10-40 pg/mL. Elevated or low levels have different implications requiring clinical interpretation.","faqs":[{"question":"Why does estradiol matter for men?","answer":"Men produce small amounts of estradiol, which is important for bone health, brain function, and libido. Too high levels can cause breast enlargement and reduced testosterone effects; too low can affect bones and mood."},{"question":"When in my cycle should I test estradiol?","answer":"For baseline assessment, test days 2-5 of your cycle. To assess ovulation, test around day 12-14. For fertility treatment monitoring, follow your clinic's specific protocol."},{"question":"Can estradiol indicate menopause?","answer":"Yes. Consistently low estradiol (below 30 pg/mL) combined with elevated FSH suggests menopause. However, perimenopause can show fluctuating levels, so multiple tests may be needed."},{"question":"What causes high estradiol in men?","answer":"High estradiol in men can result from excess body fat (fat tissue converts testosterone to estradiol), liver disease, certain medications, or rarely, estrogen-producing tumors."}],"relatedTests":["estradiol-ultrasensitive","fsh","lh","progesterone","testosterone-total"],"createdBy":"script","name_es":"Estradiol (E2)","biomarkers_es":["Estradiol"],"whenToTest_es":"Mujeres: el momento depende de la razón de la prueba. Día 3 para línea base de fertilidad. Mediados del ciclo para confirmar ovulación. No se requiere ayuno.","metaDescription_es":"Ordena una prueba de estradiol por $20. Mide el estrógeno principal. Importante para fertilidad, menopausia y equilibrio hormonal. Resultados en 1-2 días.","h1Title_es":"Análisis de Sangre de Estradiol (E2)","metaTitle_es":"Prueba de Estradiol - $20 | Niveles de Estrógeno | Justlabs","shortName_es":"Estradiol","symptomsAddressed_es":["Períodos irregulares","Bochornos","Sequedad vaginal","Cambios de humor","Baja libido","Dificultad para concebir"],"whoIsItFor_es":"Mujeres evaluando fertilidad, quienes tienen períodos irregulares, mujeres con síntomas perimenopáusicos o menopáusicos, hombres con ginecomastia o sospecha de estrógeno alto, y cualquiera monitoreando terapia hormonal.","resultsOverview_es":"Los resultados deben interpretarse según la fase del ciclo menstrual. Estradiol muy bajo en mujeres premenopáusicas puede indicar problemas ováricos. Estradiol alto en hombres puede causar síntomas como baja libido y ginecomastia.","longDescription_es":"El estradiol es la forma más potente de estrógeno, producida principalmente por los ovarios en mujeres. Juega roles cruciales en:\n\n• Regulación del ciclo menstrual\n• Salud reproductiva y fertilidad\n• Salud ósea (previene osteoporosis)\n• Salud cardiovascular\n• Función cerebral y humor\n• Salud de piel y cabello\n\nEn hombres, el estradiol es producido en cantidades menores y es importante para la salud ósea y la función cerebral.","conditionsScreened_es":["Insuficiencia ovárica","Menopausia","SOP","Estrógeno alto (en hombres)","Problemas de fertilidad"],"description_es":"Mide el estradiol, la forma principal de estrógeno en mujeres premenopáusicas.","shortSummary_es":"El estradiol es el estrógeno primario. En mujeres, regula el ciclo menstrual, la fertilidad y la salud ósea. Los hombres también necesitan algo de estradiol para la función cerebral y ósea.","whatItMeasures_es":"Esta prueba mide el estradiol sérico en pg/mL. Los niveles normales en mujeres varían dramáticamente según la fase del ciclo: Folicular temprano: 20-150 pg/mL. Pico ovulatorio: 150-500 pg/mL. Lútea: 30-450 pg/mL. Posmenopausia: <30 pg/mL. Hombres: 10-40 pg/mL.","createdAt":{"_nanoseconds":701000000,"_seconds":1769634721},"cptCode":"82670"},{"id":"estradiol-ultrasensitive","questCode":"30289","name":"Estradiol, Ultrasensitive, LC/MS","shortName":"Estradiol Ultrasensitive","description":"Highly sensitive estradiol measurement using liquid chromatography/tandem mass spectrometry (LC/MS). Essential for detecting low estradiol levels in men, children, and postmenopausal women.","category":"hormone","price":29,"costPrice":23.61,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Estradiol","Sensitive"],"turnaroundDays":"3-5","sampleTypes":["serum"],"cptCode":"82670","metaTitle":"Estradiol Ultrasensitive LC/MS Test - $29 | Precise E2 Levels | Justlabs","metaDescription":"Order an Estradiol Ultrasensitive LC/MS blood test for $29. The most accurate estradiol test for men, children, and postmenopausal women. Detects very low E2 levels. No doctor visit needed.","h1Title":"Estradiol, Ultrasensitive (LC/MS) Blood Test","shortSummary":"The ultrasensitive estradiol test uses advanced LC/MS technology to accurately measure very low estradiol levels that standard immunoassay tests cannot reliably detect — making it the preferred choice for men, children, and postmenopausal women.","longDescription":"The Estradiol, Ultrasensitive LC/MS test uses liquid chromatography with tandem mass spectrometry — the gold standard method for measuring estradiol at very low concentrations. Unlike standard immunoassay estradiol tests, this method eliminates cross-reactivity with other steroids, delivering highly accurate results even at levels below 20 pg/mL.\n\nThis test is crucial for assessing ovarian function and is used in various clinical situations including menstrual disorders, precocious or delayed puberty, and assisted reproduction protocols. For men, it is the preferred method for evaluating conditions like gynecomastia by precisely measuring estradiol levels in the low male range where standard assays lose accuracy.\n\nStandard estradiol immunoassays can overestimate low values due to interference from other compounds in the blood. The LC/MS method avoids this problem entirely, making it indispensable for monitoring anti-estrogen therapies (such as aromatase inhibitors), assessing hormone levels in prepubertal children, and tracking postmenopausal estradiol levels where precision at low concentrations matters most.\n\nIf you need to measure estradiol in the typical female premenopausal range (30–400+ pg/mL), the standard estradiol test is sufficient and more affordable. Choose this ultrasensitive test when low-level accuracy is critical.","whatItMeasures":"This test measures estradiol (E2) concentration using LC/MS technology, which provides superior accuracy at low concentrations compared to standard immunoassay methods. Reference ranges: Males ≤29 pg/mL; Females — Follicular Phase 39–375 pg/mL, Luteal Phase 48–440 pg/mL, Postmenopausal ≤10 pg/mL.","whoIsItFor":"Men monitoring estradiol during testosterone replacement therapy or investigating gynecomastia, postmenopausal women tracking low estradiol levels, children being evaluated for precocious or delayed puberty, patients on aromatase inhibitor therapy, anyone needing precise measurement of low estradiol concentrations, and couples undergoing assisted reproduction protocols.","symptomsAddressed":["Gynecomastia in men","Erectile dysfunction","Decreased libido","Hot flashes","Bone density concerns","Delayed or precocious puberty","Menstrual disorders","Mood changes","Fatigue","Difficulty conceiving"],"conditionsScreened":["Gynecomastia","Hypogonadism","Precocious puberty","Delayed puberty","Menopause confirmation","Ovarian insufficiency","Infertility","Estrogen-producing tumors","Aromatase inhibitor monitoring","Osteoporosis risk"],"whenToTest":"No fasting required. For menstruating women undergoing fertility assessment, test on days 2–5 of the menstrual cycle. For men, postmenopausal women, and children, the test can be performed at any time. If monitoring aromatase inhibitor therapy, test at consistent intervals as directed by your provider.","preparationInstructions":"No special preparation is needed. Continue all medications unless your provider instructs otherwise. If using topical estrogen products, avoid applying them near the blood draw site, as skin contamination can falsely elevate results.","resultsOverview":"Results are reported in pg/mL. Males should expect ≤29 pg/mL. Premenopausal females will see values that vary by cycle phase: Follicular 39–375 pg/mL, Luteal 48–440 pg/mL. Postmenopausal females typically show ≤10 pg/mL. Values outside these ranges may indicate hormonal imbalances requiring clinical evaluation. Because this test uses LC/MS, the results at low concentrations are more reliable than standard estradiol tests.","faqs":[{"question":"What is the difference between the standard estradiol test and the ultrasensitive LC/MS test?","answer":"The standard estradiol test uses an immunoassay method that works well for typical female premenopausal ranges (30–400+ pg/mL) but can be inaccurate at low levels. The ultrasensitive LC/MS test uses mass spectrometry technology that provides precise measurements even below 20 pg/mL, making it essential for men, children, and postmenopausal women."},{"question":"Why is this test recommended for men instead of the standard estradiol test?","answer":"Male estradiol levels are typically below 29 pg/mL — a range where standard immunoassays lose accuracy and can overestimate values due to cross-reactivity with other steroids. The LC/MS method eliminates this interference, giving you a reliable reading to guide treatment decisions like TRT dose adjustments."},{"question":"Do I need this test if I am on testosterone replacement therapy (TRT)?","answer":"Yes, this is the preferred test for men on TRT. Testosterone can convert to estradiol via the aromatase enzyme, and monitoring with the ultrasensitive method ensures accurate tracking of your E2 levels. Elevated estradiol on TRT can cause water retention, mood changes, and gynecomastia."},{"question":"Is this test appropriate for monitoring aromatase inhibitor therapy?","answer":"Absolutely. Aromatase inhibitors reduce estradiol to very low levels, often below 10 pg/mL. The ultrasensitive LC/MS method is the only reliable way to confirm the medication is achieving adequate estrogen suppression, as standard assays cannot accurately measure such low concentrations."},{"question":"Can this test be used to evaluate puberty timing in children?","answer":"Yes. This test can detect the subtle increases in estradiol that signal the onset of puberty. In cases of suspected precocious (early) or delayed puberty, the ultrasensitive method provides the precision needed to identify small hormonal changes that standard tests would miss."},{"question":"How long does it take to get results?","answer":"Results are typically available within 3–5 business days. The LC/MS method requires specialized laboratory equipment and processing, which takes slightly longer than standard immunoassay estradiol tests."}],"relatedTests":["estradiol","fsh","lh","testosterone-free-total","progesterone","shbg"],"relatedPanels":["panel-female-hormone","panel-male-hormone","panel-fertility"],"name_es":"Estradiol, Ultrasensible, LC/MS","shortName_es":"Estradiol Ultrasensible","description_es":"Medición altamente sensible de estradiol mediante cromatografía líquida/espectrometría de masas en tándem (LC/MS). Esencial para detectar niveles bajos de estradiol en hombres, niños y mujeres posmenopáusicas.","biomarkers_es":["Estradiol, Sensible"],"metaTitle_es":"Prueba de Estradiol Ultrasensible LC/MS - $29 | Niveles Precisos de E2 | Justlabs","metaDescription_es":"Ordena una prueba de sangre de Estradiol Ultrasensible LC/MS por $29. La prueba de estradiol más precisa para hombres, niños y mujeres posmenopáusicas. Detecta niveles muy bajos de E2. Sin necesidad de visita médica.","h1Title_es":"Prueba de Sangre de Estradiol Ultrasensible (LC/MS)","shortSummary_es":"La prueba de estradiol ultrasensible utiliza tecnología avanzada LC/MS para medir con precisión niveles muy bajos de estradiol que las pruebas estándar de inmunoanálisis no pueden detectar de forma confiable, siendo la opción preferida para hombres, niños y mujeres posmenopáusicas.","longDescription_es":"La prueba de Estradiol Ultrasensible LC/MS utiliza cromatografía líquida con espectrometría de masas en tándem — el método de referencia para medir estradiol en concentraciones muy bajas. A diferencia de las pruebas estándar de inmunoanálisis, este método elimina la reactividad cruzada con otros esteroides, ofreciendo resultados altamente precisos incluso en niveles por debajo de 20 pg/mL.\n\nEsta prueba es fundamental para evaluar la función ovárica y se utiliza en diversas situaciones clínicas, incluyendo trastornos menstruales, pubertad precoz o tardía, y protocolos de reproducción asistida. En hombres, es el método preferido para evaluar condiciones como la ginecomastia, midiendo con precisión los niveles de estradiol en el rango masculino bajo donde los análisis estándar pierden precisión.\n\nLos inmunoanálisis estándar de estradiol pueden sobreestimar valores bajos debido a la interferencia de otros compuestos en la sangre. El método LC/MS evita este problema por completo, haciéndolo indispensable para monitorear terapias antiestrogénicas (como inhibidores de aromatasa), evaluar niveles hormonales en niños prepúberes y hacer seguimiento de los niveles de estradiol posmenopáusicos donde la precisión en concentraciones bajas es fundamental.\n\nSi necesita medir estradiol en el rango típico de mujeres premenopáusicas (30–400+ pg/mL), la prueba estándar de estradiol es suficiente y más económica. Elija esta prueba ultrasensible cuando la precisión en niveles bajos sea crítica.","whatItMeasures_es":"Esta prueba mide la concentración de estradiol (E2) utilizando tecnología LC/MS, que proporciona una precisión superior en concentraciones bajas en comparación con los métodos estándar de inmunoanálisis. Rangos de referencia: Hombres ≤29 pg/mL; Mujeres — Fase Folicular 39–375 pg/mL, Fase Lútea 48–440 pg/mL, Posmenopausia ≤10 pg/mL.","whoIsItFor_es":"Hombres que monitorean estradiol durante terapia de reemplazo de testosterona o investigan ginecomastia, mujeres posmenopáusicas que rastrean niveles bajos de estradiol, niños evaluados por pubertad precoz o tardía, pacientes en terapia con inhibidores de aromatasa, cualquier persona que necesite medición precisa de concentraciones bajas de estradiol, y parejas en protocolos de reproducción asistida.","symptomsAddressed_es":["Ginecomastia en hombres","Disfunción eréctil","Disminución de la libido","Sofocos","Preocupaciones de densidad ósea","Pubertad tardía o precoz","Trastornos menstruales","Cambios de humor","Fatiga","Dificultad para concebir"],"conditionsScreened_es":["Ginecomastia","Hipogonadismo","Pubertad precoz","Pubertad tardía","Confirmación de menopausia","Insuficiencia ovárica","Infertilidad","Tumores productores de estrógeno","Monitoreo de inhibidores de aromatasa","Riesgo de osteoporosis"],"whenToTest_es":"No se requiere ayuno. Para mujeres menstruantes en evaluación de fertilidad, realizar la prueba en los días 2–5 del ciclo menstrual. Para hombres, mujeres posmenopáusicas y niños, la prueba puede realizarse en cualquier momento. Si se monitorea terapia con inhibidores de aromatasa, realizar la prueba a intervalos consistentes según las indicaciones de su proveedor.","preparationInstructions_es":"No se necesita preparación especial. Continúe todos los medicamentos a menos que su proveedor indique lo contrario. Si usa productos tópicos de estrógeno, evite aplicarlos cerca del sitio de extracción de sangre, ya que la contaminación cutánea puede elevar falsamente los resultados.","resultsOverview_es":"Los resultados se reportan en pg/mL. Los hombres deben esperar ≤29 pg/mL. Las mujeres premenopáusicas verán valores que varían según la fase del ciclo: Folicular 39–375 pg/mL, Lútea 48–440 pg/mL. Las mujeres posmenopáusicas típicamente muestran ≤10 pg/mL. Valores fuera de estos rangos pueden indicar desequilibrios hormonales que requieren evaluación clínica. Debido a que esta prueba usa LC/MS, los resultados en concentraciones bajas son más confiables que las pruebas estándar de estradiol.","faqs_es":[{"question":"¿Cuál es la diferencia entre la prueba estándar de estradiol y la prueba ultrasensible LC/MS?","answer":"La prueba estándar de estradiol usa un método de inmunoanálisis que funciona bien para rangos típicos de mujeres premenopáusicas (30–400+ pg/mL) pero puede ser imprecisa en niveles bajos. La prueba ultrasensible LC/MS usa tecnología de espectrometría de masas que proporciona mediciones precisas incluso por debajo de 20 pg/mL, haciéndola esencial para hombres, niños y mujeres posmenopáusicas."},{"question":"¿Por qué se recomienda esta prueba para hombres en lugar de la prueba estándar de estradiol?","answer":"Los niveles de estradiol masculinos típicamente están por debajo de 29 pg/mL — un rango donde los inmunoanálisis estándar pierden precisión y pueden sobreestimar valores debido a la reactividad cruzada con otros esteroides. El método LC/MS elimina esta interferencia, proporcionando una lectura confiable para guiar decisiones de tratamiento como ajustes de dosis de TRT."},{"question":"¿Necesito esta prueba si estoy en terapia de reemplazo de testosterona (TRT)?","answer":"Sí, esta es la prueba preferida para hombres en TRT. La testosterona puede convertirse en estradiol a través de la enzima aromatasa, y el monitoreo con el método ultrasensible asegura un seguimiento preciso de sus niveles de E2. El estradiol elevado en TRT puede causar retención de líquidos, cambios de humor y ginecomastia."},{"question":"¿Es esta prueba apropiada para monitorear la terapia con inhibidores de aromatasa?","answer":"Absolutamente. Los inhibidores de aromatasa reducen el estradiol a niveles muy bajos, frecuentemente por debajo de 10 pg/mL. El método ultrasensible LC/MS es la única forma confiable de confirmar que el medicamento está logrando una supresión adecuada de estrógeno, ya que los análisis estándar no pueden medir con precisión concentraciones tan bajas."},{"question":"¿Se puede usar esta prueba para evaluar el momento de la pubertad en niños?","answer":"Sí. Esta prueba puede detectar los aumentos sutiles de estradiol que señalan el inicio de la pubertad. En casos de sospecha de pubertad precoz (temprana) o tardía, el método ultrasensible proporciona la precisión necesaria para identificar pequeños cambios hormonales que las pruebas estándar no detectarían."},{"question":"¿Cuánto tiempo tarda en obtener los resultados?","answer":"Los resultados generalmente están disponibles dentro de 3–5 días hábiles. El método LC/MS requiere equipo y procesamiento de laboratorio especializado, lo que toma un poco más de tiempo que las pruebas estándar de estradiol por inmunoanálisis."}]},{"id":"progesterone","questCode":"745","name":"Progesterone","shortName":"Progesterone","description":"Measures progesterone levels important for menstrual cycle and pregnancy.","category":"hormone","price":14,"costPrice":10,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Progesterone"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Progesterone Test - $14 | Fertility & Cycle Hormone | Justlabs","metaDescription":"Order a progesterone blood test for $14. Essential for fertility, menstrual cycles, and pregnancy support. No fasting required. Results in 2-3 days.","h1Title":"Progesterone Blood Test","shortSummary":"Progesterone is a key reproductive hormone that prepares the uterus for pregnancy and supports early pregnancy. This test helps evaluate ovulation, fertility, and hormonal balance.","longDescription":"Progesterone is a steroid hormone produced primarily by the ovaries after ovulation, with smaller amounts from the adrenal glands. After ovulation, the corpus luteum (remnant of the egg follicle) produces progesterone to prepare the uterine lining for potential pregnancy.\n\nProgesterone levels follow a predictable pattern during the menstrual cycle—low before ovulation, rising sharply after ovulation, then falling if pregnancy doesn't occur (triggering menstruation). During pregnancy, the placenta takes over progesterone production.\n\nThis test is commonly used to confirm ovulation, evaluate fertility issues, assess luteal phase adequacy, and monitor early pregnancy or hormone therapy.","whatItMeasures":"This test measures the concentration of progesterone in your blood, reported in ng/mL. Levels vary dramatically based on menstrual cycle phase, pregnancy status, and menopause.","whoIsItFor":"Women trying to conceive (confirms ovulation), those with irregular periods, women with recurrent pregnancy loss, anyone investigating infertility, women using progesterone therapy, and those evaluating hormonal imbalances.","symptomsAddressed":["Irregular menstrual cycles","Difficulty getting pregnant","Recurrent miscarriage","Short luteal phase","Spotting before period","Mood changes (PMS/PMDD)","Sleep disturbances"],"conditionsScreened":["Anovulation (lack of ovulation)","Luteal phase defect","Infertility evaluation","Early pregnancy viability","Threatened miscarriage","PCOS evaluation"],"whenToTest":"No fasting required. For ovulation confirmation, test approximately 7 days after expected ovulation (day 21 of a 28-day cycle, or 7 days before expected period). For other purposes, timing depends on clinical indication.","resultsOverview":"Levels vary by cycle phase: Follicular phase (before ovulation): <1.5 ng/mL, Mid-luteal (7 days post-ovulation): 5-20 ng/mL (confirms ovulation), Pregnancy first trimester: 11-44 ng/mL. A mid-luteal level >3 ng/mL suggests ovulation occurred.","faqs":[{"question":"When should I test to confirm ovulation?","answer":"Test approximately 7 days after you ovulate, or about 7 days before your expected period. For a typical 28-day cycle, this is around day 21. A level above 3 ng/mL confirms ovulation occurred; optimal levels are 10-20 ng/mL."},{"question":"What causes low progesterone?","answer":"Low progesterone can result from anovulation (no ovulation), luteal phase defect (corpus luteum dysfunction), stress, excessive exercise, low body weight, PCOS, or perimenopause. Treatment depends on the underlying cause."},{"question":"Can I take progesterone supplements to improve fertility?","answer":"Progesterone supplementation may help women with documented luteal phase defect or during IVF cycles. However, supplementation without confirmed low levels is not proven to improve fertility. Testing helps determine if supplementation is appropriate."},{"question":"Is one test enough to evaluate progesterone?","answer":"A single well-timed test often confirms ovulation. However, for fertility evaluation, your provider may recommend testing over multiple cycles, as levels can vary. Serial testing during early pregnancy can monitor viability."}],"relatedTests":["estradiol","fsh","lh","testosterone-total","shbg"],"createdBy":"script","name_es":"Progesterona","biomarkers_es":["Progesterona"],"description_es":"Mide los niveles de progesterona. Importante para ciclo menstrual, embarazo y equilibrio hormonal.","shortName_es":"Progesterona","whenToTest_es":"El momento es crítico. Para evaluar la ovulación, analice alrededor del día 21 de un ciclo de 28 días (7 días después de la ovulación esperada). Para ciclos más largos, ajuste en consecuencia. Las pruebas en la mañana pueden proporcionar resultados más consistentes.","longDescription_es":"La progesterona es una hormona crucial para la salud reproductiva femenina. Después de la ovulación, el cuerpo lúteo (la estructura dejada por el folículo liberado) produce progesterona para preparar el útero para el embarazo.\n\n**Si ocurre el embarazo:** Los niveles de progesterona permanecen elevados y eventualmente la placenta se hace cargo de la producción. Los niveles bajos en el embarazo temprano pueden aumentar el riesgo de aborto espontáneo.\n\n**Si no ocurre el embarazo:** La progesterona cae, desencadenando la menstruación. El nivel de progesterona en la segunda mitad del ciclo (fase lútea) confirma si ocurrió la ovulación.\n\nLa progesterona también tiene efectos calmantes en el cerebro, influye en el sueño y juega roles en la salud ósea.","conditionsScreened_es":["Anovulación","Defecto de fase lútea","Infertilidad","Riesgo de aborto espontáneo","Embarazo ectópico","Tumores ováricos"],"shortSummary_es":"La progesterona es esencial para mantener el embarazo y regular el ciclo menstrual. Los niveles ayudan a confirmar la ovulación y evaluar la salud reproductiva.","whatItMeasures_es":"Esta prueba mide el nivel de progesterona en su sangre. La progesterona es una hormona producida principalmente por los ovarios después de la ovulación y por la placenta durante el embarazo.","symptomsAddressed_es":["Ciclos menstruales irregulares","Dificultad para concebir","Abortos espontáneos recurrentes","Sangrado menstrual abundante","Síntomas premenstruales"],"whoIsItFor_es":"Mujeres con ciclos menstruales irregulares, aquellas que intentan concebir, mujeres con abortos espontáneos recurrentes, cualquier persona que monitoree la ovulación, mujeres en terapia de reemplazo hormonal, y aquellas con sospecha de deficiencia de fase lútea.","faqs_es":[{"question":"¿Qué nivel de progesterona confirma la ovulación?","answer":"Un nivel de progesterona por encima de 3 ng/mL sugiere que ocurrió la ovulación. Niveles por encima de 10 ng/mL indican ovulación robusta. Niveles muy altos (>20 ng/mL) durante la fase lútea sugieren excelente potencial de embarazo."},{"question":"¿Por qué es importante el momento para esta prueba?","answer":"La progesterona es baja antes de la ovulación y alcanza su punto máximo 5-7 días después de la ovulación. Probar demasiado temprano o tarde puede dar resultados falsamente bajos. Conocer la fecha de ovulación ayuda a programar la prueba correctamente."},{"question":"¿Puede la progesterona baja causar aborto espontáneo?","answer":"Los niveles bajos de progesterona en el embarazo temprano están asociados con mayor riesgo de aborto espontáneo, aunque no está claro si son una causa o síntoma. Algunos médicos prescriben suplementos de progesterona para mujeres con pérdida recurrente de embarazo."}],"createdAt":{"_nanoseconds":807000000,"_seconds":1769634721},"cptCode":"84144"},{"id":"shbg","questCode":"30740","name":"Sex Hormone Binding Globulin","shortName":"SHBG","description":"Measures SHBG which binds sex hormones. Affects free hormone availability.","category":"hormone","price":18,"costPrice":14,"fastingRequired":false,"labVendor":"Quest","biomarkers":["SHBG"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"SHBG Test - $16 | Sex Hormone Binding Globulin | Justlabs","metaDescription":"Order an SHBG blood test for $16. Understand how much testosterone and estrogen is available to your body. No fasting required. Results in 2-3 days.","h1Title":"Sex Hormone Binding Globulin (SHBG) Blood Test","shortSummary":"SHBG is a protein that binds testosterone and estrogen in your blood. Understanding SHBG levels helps interpret how much sex hormone is actually available for your body to use.","longDescription":"Sex Hormone Binding Globulin (SHBG) is a protein produced primarily by the liver that binds to testosterone, dihydrotestosterone (DHT), and estradiol in the bloodstream. Hormones bound to SHBG are inactive—only \"free\" hormones can enter cells and exert their effects.\n\nSHBG levels significantly impact how much active hormone is available to your tissues. High SHBG means more hormone is bound and unavailable; low SHBG means more free hormone is circulating. This is why SHBG testing is essential for properly interpreting testosterone and estrogen results.\n\nSHBG is influenced by many factors: it increases with aging, estrogen, hyperthyroidism, and liver disease. It decreases with obesity, insulin resistance, high androgens, and hypothyroidism.","whatItMeasures":"This test measures the concentration of SHBG protein in your blood, reported in nmol/L. Combined with total testosterone, SHBG can be used to calculate free testosterone levels.","whoIsItFor":"Men with low testosterone symptoms but normal total testosterone, women with signs of excess androgens (acne, hair growth), anyone with borderline hormone results, people with metabolic syndrome or insulin resistance, and those on hormone therapy.","symptomsAddressed":["Low libido","Erectile dysfunction","Fatigue","Excess facial/body hair (women)","Acne","Hair loss","Irregular periods","Difficulty building muscle"],"conditionsScreened":["Androgen status assessment","PCOS evaluation","Metabolic syndrome","Hypogonadism evaluation","Hyperthyroidism effects","Liver disease"],"whenToTest":"No fasting required. For most accurate results, test in the morning when testosterone levels are highest. SHBG is relatively stable throughout the day.","resultsOverview":"Normal ranges vary by sex: Men: 10-57 nmol/L, Women: 18-144 nmol/L. High SHBG can cause low free testosterone despite normal total testosterone. Low SHBG is associated with insulin resistance and may indicate PCOS in women.","faqs":[{"question":"Why test SHBG with testosterone?","answer":"Total testosterone includes both bound (inactive) and free (active) hormone. SHBG helps determine how much is free. A man with normal total testosterone but high SHBG may actually have low free testosterone, explaining symptoms of low T."},{"question":"What causes high SHBG?","answer":"SHBG increases with aging, estrogen (including birth control pills), hyperthyroidism, liver disease, low calorie intake, and certain medications. High SHBG reduces available testosterone and estrogen."},{"question":"What causes low SHBG?","answer":"SHBG decreases with obesity, insulin resistance, type 2 diabetes, hypothyroidism, high androgens (including testosterone therapy), and PCOS. Low SHBG increases free hormone availability."},{"question":"Can I change my SHBG levels?","answer":"Yes, SHBG responds to metabolic health. Weight loss and improved insulin sensitivity can increase low SHBG. Addressing thyroid dysfunction also helps normalize SHBG. Some medications affect SHBG as a side effect."}],"relatedTests":["testosterone-free-total","testosterone-total","estradiol","free-t4","insulin-fasting"],"createdBy":"script","name_es":"Globulina Fijadora de Hormonas Sexuales","biomarkers_es":["SHBG"],"description_es":"Mide la proteína que se une a las hormonas sexuales. Ayuda a evaluar la disponibilidad de testosterona y estrógeno.","shortName_es":"SHBG","whenToTest_es":"Las pruebas matutinas (7-10 AM) proporcionan los resultados más consistentes. No se requiere ayuno pero puede ser preferible. SHBG a menudo se ordena junto con testosterona total y libre.","longDescription_es":"La Globulina Fijadora de Hormonas Sexuales (SHBG) es una proteína que se une a las hormonas sexuales y las transporta a través de su torrente sanguíneo. Aproximadamente 60-70% de la testosterona y el estradiol circulantes están unidos a SHBG, haciéndolos biológicamente inactivos.\n\n**SHBG alta** significa que más hormona está unida y no disponible, lo que puede causar síntomas de hormona baja incluso cuando las hormonas totales son normales. Es más común en mujeres, con el envejecimiento, hipertiroidismo y uso de anticonceptivos orales.\n\n**SHBG baja** significa que más hormona libre está disponible, lo que puede contribuir a síntomas de exceso de andrógenos como acné, pérdida de cabello e hirsutismo. Es más común con obesidad, resistencia a la insulina, SOP e hipotiroidismo.","conditionsScreened_es":["Evaluación de testosterona biodisponible","SOP","Resistencia a la insulina","Enfermedad hepática","Trastornos tiroideos","Hipogonadismo"],"shortSummary_es":"SHBG actúa como un controlador para las hormonas sexuales, determinando cuánto está disponible para que los tejidos lo usen. SHBG alta puede causar síntomas de hormona baja incluso cuando las hormonas totales son normales.","whatItMeasures_es":"Esta prueba mide la Globulina Fijadora de Hormonas Sexuales (SHBG), una proteína producida por el hígado que se une y transporta hormonas sexuales (testosterona, DHT, estradiol) en el torrente sanguíneo.","symptomsAddressed_es":["Fatiga con hormonas normales","Bajo deseo sexual","Acné/piel grasa","Pérdida de cabello","Exceso de vello corporal","Irregularidades menstruales"],"whoIsItFor_es":"Personas con síntomas hormonales a pesar de niveles normales de hormonas totales, hombres con sospecha de testosterona biodisponible baja, mujeres con signos de exceso de andrógenos, individuos con resistencia a la insulina o diabetes, aquellos con enfermedad hepática, y cualquier persona en terapia hormonal.","faqs_es":[{"question":"¿Por qué importa SHBG si mis hormonas son normales?","answer":"SHBG determina cuánta hormona está realmente disponible para los tejidos. Puede tener testosterona total normal pero si SHBG es alta, la testosterona biodisponible es baja, causando síntomas. Probar SHBG explica la discordancia entre niveles y síntomas."},{"question":"¿Qué hace que SHBG sea alta o baja?","answer":"SHBG es aumentada por: estrógeno, hormona tiroidea, medicamentos hepáticos, envejecimiento, pérdida de peso. SHBG es disminuida por: obesidad, resistencia a la insulina, hipotiroidismo, andrógenos, esteroides anabólicos."},{"question":"¿Se puede tratar SHBG?","answer":"El tratamiento se dirige a la causa subyacente. Para SHBG alta de anticonceptivos, cambiar de método puede ayudar. Para SHBG baja de resistencia a la insulina, pérdida de peso y metformina pueden normalizarla."}],"createdAt":{"_nanoseconds":914000000,"_seconds":1769634721},"cptCode":"84270"},{"id":"prolactin","questCode":"746","name":"Prolactin","shortName":"Prolactin","description":"Measures prolactin hormone. Elevated levels can affect fertility and menstrual cycles.","category":"hormone","price":12,"costPrice":10,"fastingRequired":true,"labVendor":"Quest","biomarkers":["Prolactin"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Prolactin Test - $12 | Pituitary Hormone | Justlabs","metaDescription":"Order a prolactin blood test for $12. Check this pituitary hormone that affects fertility, periods, and milk production. Results in 1-2 days.","h1Title":"Prolactin Blood Test","shortSummary":"Prolactin is a pituitary hormone primarily known for stimulating milk production. Elevated levels can cause infertility, irregular periods, and other hormonal symptoms.","longDescription":"Prolactin is a hormone produced by the pituitary gland at the base of the brain. While primarily known for stimulating breast milk production after childbirth, prolactin has many other functions in both men and women.\n\nElevated prolactin (hyperprolactinemia) is a common cause of infertility and menstrual irregularities in women, and can cause low testosterone and sexual dysfunction in men. Causes include pituitary tumors (usually benign prolactinomas), certain medications, hypothyroidism, and stress.\n\nThis test helps investigate unexplained infertility, irregular periods, inappropriate milk production (galactorrhea), low libido, or symptoms suggesting pituitary dysfunction.","whatItMeasures":"This test measures the concentration of prolactin hormone in your blood, reported in ng/mL. Levels naturally rise during pregnancy and breastfeeding.","whoIsItFor":"Women with irregular periods or infertility, anyone with unexplained milk production, men with low testosterone symptoms, people with suspected pituitary problems, those on medications that raise prolactin, and anyone with headaches plus vision changes.","symptomsAddressed":["Irregular or absent periods","Infertility","Milk production when not pregnant/nursing","Low libido","Erectile dysfunction","Headaches","Vision changes","Vaginal dryness"],"conditionsScreened":["Prolactinoma (pituitary tumor)","Hyperprolactinemia","Pituitary dysfunction","Medication-induced prolactin elevation","Hypothyroidism workup","Infertility evaluation"],"whenToTest":"Overnight fasting is preferred. Avoid testing right after eating. Ideally test in the morning, at least 2 hours after waking. Avoid breast stimulation before testing. Stress can temporarily elevate prolactin.","resultsOverview":"Normal levels: Non-pregnant women: 2-29 ng/mL, Men: 2-18 ng/mL, Pregnant women: 10-209 ng/mL. Mildly elevated levels (30-200 ng/mL) often result from medications or stress. Very high levels (>200 ng/mL) suggest prolactinoma.","faqs":[{"question":"What medications cause high prolactin?","answer":"Many medications raise prolactin, including antipsychotics (risperidone, haloperidol), some antidepressants, anti-nausea drugs (metoclopramide), opioids, and certain blood pressure medications. If on these medications, elevated prolactin may not require further workup."},{"question":"What is a prolactinoma?","answer":"A prolactinoma is a benign (non-cancerous) tumor of the pituitary gland that produces excess prolactin. It is the most common type of pituitary tumor. Most prolactinomas are small and treated effectively with medication (dopamine agonists) rather than surgery."},{"question":"Can stress affect prolactin levels?","answer":"Yes, stress can temporarily elevate prolactin. Physical stress (exercise, pain) and emotional stress can cause mild elevations. If your level is mildly elevated, your provider may repeat the test under calm conditions before further workup."},{"question":"Why does high prolactin cause infertility?","answer":"Elevated prolactin suppresses GnRH, which reduces FSH and LH production, leading to irregular or absent ovulation in women and low testosterone in men. Treating the underlying cause typically restores fertility."}],"relatedTests":["tsh","testosterone-free-total","fsh","lh","estradiol"],"createdBy":"script","name_es":"Prolactina","biomarkers_es":["Prolactina"],"description_es":"Mide los niveles de prolactina. Importante para evaluación de fertilidad y función hipofisaria.","shortName_es":"Prolactina","whenToTest_es":"Analice en la mañana (3-4 horas después de despertar) cuando los niveles son más estables. Evite la estimulación mamaria, ejercicio intenso y estrés antes de la prueba ya que estos pueden elevar temporalmente la prolactina. El ayuno puede proporcionar resultados más consistentes.","longDescription_es":"La prolactina es una hormona producida por la glándula pituitaria, mejor conocida por su rol en la producción de leche materna. Sin embargo, también influye en la función inmune, el metabolismo y el comportamiento reproductivo.\n\n**La prolactina elevada (hiperprolactinemia)** fuera del embarazo o lactancia puede causar:\n- Irregularidades o ausencia de menstruación\n- Secreción de los pezones (galactorrea)\n- Infertilidad\n- Bajo deseo sexual y disfunción eréctil en hombres\n\n**Las causas comunes** de prolactina alta incluyen:\n- Prolactinomas (tumores pituitarios benignos)\n- Medicamentos (antipsicóticos, ciertos antidepresivos)\n- Hipotiroidismo\n- Enfermedad renal o hepática\n- Embarazo y lactancia (normal)","conditionsScreened_es":["Prolactinoma","Tumores pituitarios","Hipotiroidismo","Infertilidad","Hipopituitarismo"],"shortSummary_es":"La prolactina estimula la producción de leche pero también afecta la fertilidad y función sexual. Los niveles elevados fuera del embarazo/lactancia pueden indicar un tumor pituitario u otras condiciones.","whatItMeasures_es":"Esta prueba mide el nivel de prolactina en su sangre. La prolactina es una hormona producida por la glándula pituitaria que estimula la producción de leche materna y afecta la función reproductiva.","symptomsAddressed_es":["Irregularidades menstruales","Secreción de pezones","Infertilidad","Bajo deseo sexual","Dolores de cabeza","Cambios visuales","Disfunción eréctil"],"whoIsItFor_es":"Mujeres con irregularidades menstruales o infertilidad, personas con secreción de los pezones (galactorrea), hombres con disfunción eréctil o bajo deseo sexual, individuos con dolores de cabeza o cambios visuales inexplicables, y aquellos con sospecha de tumores pituitarios.","faqs_es":[{"question":"¿Qué es un prolactinoma?","answer":"Un prolactinoma es un tumor benigno de la glándula pituitaria que produce prolactina en exceso. Es el tipo más común de tumor pituitario. La mayoría son pequeños y tratables con medicamentos."},{"question":"¿Los medicamentos pueden causar prolactina alta?","answer":"Sí, muchos medicamentos elevan la prolactina, especialmente antipsicóticos, algunos antidepresivos, medicamentos para náuseas (metoclopramida) y bloqueadores de ácido (ranitidina). Siempre informe a su médico sobre los medicamentos antes de la prueba."},{"question":"¿Puede la prolactina alta afectar la fertilidad masculina?","answer":"Sí, la prolactina elevada en hombres puede suprimir la testosterona, causar bajo deseo sexual, disfunción eréctil y reducción de la producción de esperma. El tratamiento de la causa subyacente generalmente restaura la fertilidad."}],"createdAt":{"_nanoseconds":27000000,"_seconds":1769634722},"cptCode":"84146"},{"id":"igf-1","questCode":"16293","name":"IGF-1 (Insulin-like Growth Factor)","shortName":"IGF-1","description":"Measures IGF-1, which reflects growth hormone status. Important for metabolism and aging.","category":"hormone","price":24,"costPrice":20,"fastingRequired":false,"labVendor":"Quest","biomarkers":["IGF-1 LC/MS"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"IGF-1 Test - $24 | Growth Hormone Marker | Justlabs","metaDescription":"Order an IGF-1 (Insulin-like Growth Factor 1) test for $24. Measures growth hormone status for metabolism, muscle, and aging. No fasting. Results in 2-3 days.","h1Title":"IGF-1 (Insulin-like Growth Factor 1) Blood Test","shortSummary":"IGF-1 is the primary mediator of growth hormone effects in the body, reflecting overall growth hormone status and important for metabolism, muscle, and bone health.","longDescription":"Insulin-like Growth Factor 1 (IGF-1) is a hormone primarily produced by the liver in response to growth hormone (GH). Unlike growth hormone which fluctuates throughout the day, IGF-1 levels remain stable, making it the best marker for assessing overall growth hormone status.\n\nIGF-1 plays crucial roles in growth during childhood, muscle and bone maintenance in adults, and metabolic health. It promotes protein synthesis, supports muscle growth, and helps regulate body composition.\n\nIGF-1 levels naturally decline with age. Low levels are associated with decreased muscle mass, increased body fat, reduced bone density, and lower energy. However, both very low and very high IGF-1 levels can indicate health concerns.","whatItMeasures":"This test measures the blood concentration of IGF-1, reported in ng/mL. Normal ranges vary by age and sex. IGF-1 reflects integrated growth hormone secretion over time, providing a stable indicator of GH status.","whoIsItFor":"Adults interested in growth hormone status, those with symptoms of GH deficiency, people concerned about age-related hormone decline, athletes and fitness enthusiasts, individuals with unexplained fatigue or muscle loss, and those evaluating pituitary function.","symptomsAddressed":["Fatigue and low energy","Decreased muscle mass","Increased body fat","Poor exercise recovery","Reduced bone density","Decreased sense of wellbeing"],"conditionsScreened":["Growth hormone deficiency","Growth hormone excess (acromegaly)","Pituitary disorders","Age-related hormone decline","Nutritional status"],"whenToTest":"No fasting required. IGF-1 levels are stable throughout the day, so timing doesn't matter. Avoid testing during acute illness as levels may be temporarily affected.","resultsOverview":"Normal IGF-1 varies significantly by age. Typical adult ranges: Ages 20-30: 115-350 ng/mL, Ages 30-40: 115-310 ng/mL, Ages 40-50: 95-250 ng/mL, Ages 50+: 70-210 ng/mL. Results should be interpreted with age-specific references.","faqs":[{"answer":"IGF-1 is the best marker for overall growth hormone status. Since GH is released in pulses and varies throughout the day, IGF-1 provides a more stable and reliable indicator of your GH activity.","question":"What does IGF-1 tell me about growth hormone?"},{"answer":"Yes. Exercise (especially high-intensity and resistance training), adequate sleep, protein intake, and maintaining a healthy weight can support IGF-1 levels. Intermittent fasting may also temporarily increase GH and IGF-1.","question":"Can I increase my IGF-1 naturally?"},{"question":"Is high IGF-1 good or bad?","answer":"Optimal IGF-1 is in the middle range for your age. Very high IGF-1 may indicate excessive growth hormone (acromegaly) or has been associated with increased cancer risk in some studies. Very low IGF-1 indicates deficiency."},{"answer":"IGF-1 is generally preferred because it's stable and reflects overall GH status. Growth hormone itself fluctuates so much that a single measurement isn't reliable without specialized stimulation testing.","question":"Should I get IGF-1 or growth hormone tested?"}],"relatedTests":["testosterone-free-total","dhea-s","insulin-fasting","vitamin-d"],"name_es":"IGF-1 (Factor de Crecimiento Similar a Insulina)","biomarkers_es":["IGF-1"],"description_es":"Mide el factor de crecimiento similar a insulina-1. Marcador indirecto de actividad de hormona de crecimiento.","shortName_es":"IGF-1","whenToTest_es":"No se requiere ayuno. Los niveles de IGF-1 son estables durante todo el día, por lo que el momento no importa. Evite analizar durante enfermedad aguda ya que los niveles pueden verse afectados temporalmente.","longDescription_es":"El Factor de Crecimiento Similar a la Insulina 1 (IGF-1) es una hormona producida principalmente por el hígado en respuesta a la hormona del crecimiento (GH). A diferencia de la hormona del crecimiento que fluctúa durante el día, los niveles de IGF-1 permanecen estables, haciéndolo el mejor marcador para evaluar el estado general de la hormona del crecimiento.\n\nIGF-1 juega roles cruciales en el crecimiento durante la infancia, mantenimiento muscular y óseo en adultos, y salud metabólica. Promueve la síntesis de proteínas, apoya el crecimiento muscular y ayuda a regular la composición corporal.\n\nLos niveles de IGF-1 disminuyen naturalmente con la edad. Los niveles bajos están asociados con disminución de masa muscular, aumento de grasa corporal, reducción de densidad ósea y menor energía.","conditionsScreened_es":["Deficiencia de hormona del crecimiento","Exceso de hormona del crecimiento (acromegalia)","Trastornos pituitarios","Declive hormonal relacionado con la edad","Estado nutricional"],"shortSummary_es":"IGF-1 es el mediador principal de los efectos de la hormona del crecimiento en el cuerpo, reflejando el estado general de la hormona del crecimiento e importante para el metabolismo, músculo y salud ósea.","whatItMeasures_es":"Esta prueba mide la concentración sanguínea de IGF-1, reportada en ng/mL. Los rangos normales varían según edad y sexo. IGF-1 refleja la secreción integrada de hormona del crecimiento a lo largo del tiempo, proporcionando un indicador estable del estado de GH.","symptomsAddressed_es":["Fatiga y baja energía","Disminución de masa muscular","Aumento de grasa corporal","Mala recuperación del ejercicio","Reducción de densidad ósea"],"whoIsItFor_es":"Adultos interesados en el estado de la hormona del crecimiento, aquellos con síntomas de deficiencia de GH, personas preocupadas por el declive hormonal relacionado con la edad, atletas y entusiastas del fitness, individuos con fatiga o pérdida muscular inexplicable, y aquellos que evalúan la función pituitaria.","faqs_es":[{"question":"¿Qué me dice IGF-1 sobre la hormona del crecimiento?","answer":"IGF-1 es el mejor marcador del estado general de la hormona del crecimiento. Dado que GH se libera en pulsos y varía durante el día, IGF-1 proporciona un indicador más estable y confiable de su actividad de GH."},{"question":"¿Puedo aumentar mi IGF-1 naturalmente?","answer":"Sí. El ejercicio (especialmente alta intensidad y entrenamiento de resistencia), sueño adecuado, ingesta de proteínas y mantener un peso saludable pueden apoyar los niveles de IGF-1."},{"question":"¿IGF-1 alto es bueno o malo?","answer":"IGF-1 óptimo está en el rango medio para su edad. IGF-1 muy alto puede indicar exceso de hormona del crecimiento (acromegalia). IGF-1 muy bajo indica deficiencia."},{"question":"¿Debería hacerme la prueba de IGF-1 o hormona del crecimiento?","answer":"IGF-1 es generalmente preferido porque es estable y refleja el estado general de GH. La hormona del crecimiento fluctúa tanto que una sola medición no es confiable."}],"cptCode":"84305"},{"id":"fsh","questCode":"470","name":"FSH (Follicle Stimulating Hormone)","shortName":"FSH","description":"Measures FSH levels important for reproductive function and fertility assessment.","category":"fertility","price":13,"costPrice":8,"fastingRequired":false,"labVendor":"Quest","biomarkers":["FSH"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"FSH Test - $13 | Fertility & Menopause Test | Justlabs","metaDescription":"Order an FSH (Follicle Stimulating Hormone) test for $13. Assess fertility, menopause status, or reproductive health. No fasting. Results in 1-2 days.","h1Title":"FSH (Follicle Stimulating Hormone) Blood Test","shortSummary":"FSH is a key hormone produced by the pituitary gland that stimulates egg development in women and sperm production in men, making it essential for fertility assessment and menopause diagnosis.","longDescription":"Follicle Stimulating Hormone (FSH) is produced by the pituitary gland and plays a crucial role in reproductive function for both sexes. In women, FSH stimulates the growth of ovarian follicles and egg maturation. In men, it stimulates the testes to produce sperm.\n\nFSH levels fluctuate during the menstrual cycle, with highest levels early in the cycle (days 2-4) before a dominant follicle is selected. As women approach menopause, FSH levels rise significantly because the ovaries produce less estrogen, triggering the pituitary to release more FSH in an attempt to stimulate the ovaries.\n\nTesting FSH helps evaluate fertility, diagnose menopause, assess ovarian reserve, and investigate abnormal menstrual cycles or testicular function in men.","whatItMeasures":"This test measures FSH concentration in mIU/mL. In women, early follicular phase levels are typically 3-10 mIU/mL. Levels above 10-12 mIU/mL may indicate diminished ovarian reserve; above 25-30 mIU/mL suggests perimenopause; above 40 mIU/mL confirms menopause. In men, normal is 1.5-12 mIU/mL.","whoIsItFor":"Women assessing fertility or ovarian reserve, women with irregular or absent periods, those investigating menopause status, men with fertility concerns or low sperm count, anyone evaluating pituitary function.","symptomsAddressed":["Difficulty conceiving","Irregular menstrual cycles","Absent periods","Hot flashes","Low libido","Erectile dysfunction in men","Testicular abnormalities","Early menopause symptoms"],"conditionsScreened":["Diminished ovarian reserve","Menopause","Premature ovarian failure","PCOS (in combination with LH)","Pituitary disorders","Male infertility","Hypogonadism","Turner syndrome"],"whenToTest":"No fasting required. For fertility assessment in women, test on days 2-4 of the menstrual cycle for most accurate baseline reading. Postmenopausal women and men can test anytime.","resultsOverview":"Early follicular phase: 3-10 mIU/mL (normal fertility). 10-15 mIU/mL: may indicate reduced ovarian reserve. 25-40 mIU/mL: perimenopause. Above 40 mIU/mL: menopause. Interpretation depends on age, cycle day, and clinical context.\n\nHere is a guide to better understand your FSH lab results:\n{{article:fsh-lab-test}} ","faqs":[{"question":"What day of my cycle should I test FSH?","answer":"For fertility assessment, test on days 2-4 of your cycle (day 1 = first day of period). This provides your baseline FSH level, which is most useful for evaluating ovarian reserve."},{"question":"Can FSH confirm menopause?","answer":"Yes. FSH above 40 mIU/mL on two separate tests, combined with absence of periods for 12 months, confirms menopause. Elevated FSH (25-40) with irregular periods suggests perimenopause."},{"question":"What's the relationship between FSH and fertility?","answer":"Lower FSH (3-10 mIU/mL) on day 3 indicates good ovarian reserve. Higher FSH suggests the pituitary is working harder to stimulate the ovaries, indicating fewer remaining eggs."},{"question":"Should I test FSH alone or with LH?","answer":"Testing both FSH and LH together provides more information. The FSH:LH ratio helps diagnose PCOS (elevated LH relative to FSH) and gives a more complete picture of reproductive function."}],"relatedTests":["lh","fsh-lh","estradiol","amh"],"name_es":"FSH (Hormona Folículo Estimulante)","biomarkers_es":["FSH"],"whenToTest_es":"Mujeres: analiza el día 3 del ciclo menstrual para evaluación de fertilidad. Hombres: puede analizarse en cualquier momento. No se requiere ayuno.","metaDescription_es":"Ordena una prueba de FSH por $10. Evalúa la fertilidad y la función reproductiva. Importante para mujeres evaluando reserva ovárica. Resultados en 1-2 días.","h1Title_es":"Análisis de Sangre de FSH (Hormona Folículo Estimulante)","metaTitle_es":"Prueba de FSH - $10 | Hormona de Fertilidad | Justlabs","shortName_es":"FSH","symptomsAddressed_es":["Períodos irregulares","Dificultad para concebir","Bochornos","Sudores nocturnos","Ausencia de menstruación"],"whoIsItFor_es":"Mujeres evaluando fertilidad, quienes tienen períodos irregulares o ausentes, mujeres experimentando síntomas perimenopáusicos, hombres con baja cantidad de esperma, y cualquiera investigando problemas reproductivos.","resultsOverview_es":"Mujeres día 3: FSH >10 mIU/mL sugiere reserva ovárica disminuida. FSH >25-40 indica menopausia. En hombres, FSH elevada puede indicar insuficiencia testicular primaria.","longDescription_es":"La Hormona Folículo Estimulante (FSH) es producida por la glándula hipófisis y juega un papel crucial en la reproducción:\n\nEn mujeres:\n• Estimula el crecimiento de folículos ováricos (óvulos)\n• Los niveles varían a lo largo del ciclo menstrual\n• Los niveles elevados en el día 3 sugieren reserva ovárica disminuida\n• Muy elevados en la menopausia\n\nEn hombres:\n• Estimula la producción de esperma en los testículos\n• Los niveles elevados pueden indicar problemas testiculares","conditionsScreened_es":["Reserva ovárica disminuida","Menopausia","Perimenopausia","Insuficiencia ovárica primaria","Insuficiencia testicular"],"description_es":"Mide la FSH, una hormona reproductiva clave que regula los ciclos menstruales y la producción de esperma.","shortSummary_es":"La FSH es producida por la hipófisis y controla la función reproductiva. En mujeres, estimula el crecimiento de óvulos. En hombres, estimula la producción de esperma. Es clave para evaluar la fertilidad.","whatItMeasures_es":"Esta prueba mide la FSH sérica. Los niveles normales varían: Mujeres (día 3): 3-10 mIU/mL. Mujeres (menopausia): >25-40 mIU/mL. Hombres: 1.5-12 mIU/mL.","cptCode":"83001"},{"id":"lh","questCode":"615","name":"LH (Luteinizing Hormone)","shortName":"LH","description":"Measures LH which triggers ovulation and testosterone production.","category":"fertility","price":9,"costPrice":6.25,"fastingRequired":false,"labVendor":"Quest","biomarkers":["LH"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"LH Blood Test - $9 | Luteinizing Hormone | Justlabs","metaDescription":"Order an LH (Luteinizing Hormone) blood test for $9. Essential for fertility assessment, ovulation detection, and testosterone evaluation. Results in 1-2 days.","h1Title":"LH (Luteinizing Hormone) Blood Test","shortSummary":"LH is a key reproductive hormone that triggers ovulation in women and stimulates testosterone production in men. Testing LH helps evaluate fertility, menstrual irregularities, and pituitary function.","longDescription":"Luteinizing Hormone (LH) is produced by the pituitary gland and plays a crucial role in reproductive function for both sexes. In women, LH triggers ovulation - the mid-cycle surge causes the release of a mature egg from the ovary. In men, LH stimulates the Leydig cells in the testes to produce testosterone.\n\nLH works in partnership with FSH (Follicle Stimulating Hormone) to regulate the menstrual cycle and fertility. The ratio between LH and FSH provides important diagnostic information, particularly for conditions like polycystic ovary syndrome (PCOS).\n\nTesting LH is valuable for investigating infertility, menstrual irregularities, early or delayed puberty, and suspected pituitary disorders. In conjunction with other hormone tests, LH helps create a complete picture of reproductive health.","whatItMeasures":"This test measures the concentration of luteinizing hormone in your blood, reported in mIU/mL. Normal LH varies dramatically by sex and menstrual cycle phase. Women: Follicular phase 2-15 mIU/mL, Mid-cycle peak 22-105 mIU/mL, Luteal phase 0.6-19 mIU/mL, Postmenopausal 15-62 mIU/mL. Men: 1.5-9.3 mIU/mL.","whoIsItFor":"Women investigating infertility or menstrual irregularities, those tracking ovulation for conception, women with suspected PCOS, men with low testosterone symptoms, individuals with delayed or precocious puberty, and anyone evaluating pituitary function.","symptomsAddressed":["Difficulty conceiving","Irregular or absent periods","Signs of PCOS (acne, excess hair growth)","Low libido or erectile dysfunction","Hot flashes or menopausal symptoms","Delayed puberty","Early puberty","Fatigue"],"conditionsScreened":["Ovulatory disorders","PCOS (with FSH ratio)","Menopause","Primary ovarian insufficiency","Male hypogonadism","Pituitary disorders","Hypothalamic dysfunction","Precocious or delayed puberty"],"whenToTest":"No fasting required. For fertility and PCOS assessment, test on cycle days 2-4 (early follicular phase). For ovulation detection, test mid-cycle. LH can be tested any time for men or postmenopausal women.","resultsOverview":"LH interpretation depends on sex and cycle timing. In women, elevated LH relative to FSH (>2:1 ratio) on day 3 suggests PCOS. Very high LH indicates menopause or ovarian failure. In men, high LH with low testosterone suggests primary testicular failure; low LH with low testosterone suggests pituitary/hypothalamic issues.","faqs":[{"question":"Why is the LH:FSH ratio important?","answer":"In women, the ratio of LH to FSH helps diagnose PCOS. Normally, LH and FSH are roughly equal in the early follicular phase. In PCOS, LH is often elevated relative to FSH (ratio >2:1 or >3:1), contributing to the hormonal imbalance that interferes with ovulation."},{"question":"Can LH detect ovulation?","answer":"Yes, LH surges dramatically (3-4x baseline) about 24-36 hours before ovulation. Home ovulation predictor kits detect this LH surge in urine. Blood LH testing is more precise but typically used for diagnostic purposes rather than daily ovulation tracking."},{"question":"Should I test LH alone or with FSH?","answer":"Testing both LH and FSH together provides more diagnostic information than either alone. The FSH/LH ratio, along with individual values, helps distinguish between different causes of fertility issues, menstrual irregularities, and hormonal imbalances."},{"question":"What affects LH levels?","answer":"LH levels vary with the menstrual cycle, age, and certain conditions. Birth control pills suppress LH. Stress, extreme weight changes, and intense exercise can lower LH. Certain medications and pituitary tumors can also affect levels."}],"relatedTests":["fsh","fsh-lh","estradiol","testosterone-total","amh","progesterone"],"createdBy":"script","name_es":"LH (Hormona Luteinizante)","biomarkers_es":["LH"],"description_es":"Mide la hormona luteinizante. Importante para fertilidad, ovulación y evaluación de menopausia.","shortName_es":"LH","whenToTest_es":"No se requiere ayuno. Para evaluación de fertilidad y SOP, analice en los días 2-4 del ciclo (fase folicular temprana). Para detección de ovulación, analice a mitad del ciclo. LH puede analizarse en cualquier momento para hombres o mujeres posmenopáusicas.","longDescription_es":"La Hormona Luteinizante (LH) es producida por la glándula pituitaria y juega un rol crucial en la función reproductiva para ambos sexos. En mujeres, LH desencadena la ovulación - el pico a mitad del ciclo causa la liberación de un óvulo maduro del ovario. En hombres, LH estimula las células de Leydig en los testículos para producir testosterona.\n\nLH trabaja en asociación con FSH para regular el ciclo menstrual y la fertilidad. La proporción entre LH y FSH proporciona información diagnóstica importante, particularmente para condiciones como el síndrome de ovario poliquístico (SOP).","conditionsScreened_es":["Trastornos ovulatorios","SOP (con proporción FSH)","Menopausia","Insuficiencia ovárica primaria","Hipogonadismo masculino","Trastornos pituitarios"],"shortSummary_es":"LH es una hormona reproductiva clave que desencadena la ovulación en mujeres y estimula la producción de testosterona en hombres. Analizar LH ayuda a evaluar fertilidad, irregularidades menstruales y función pituitaria.","whatItMeasures_es":"Esta prueba mide la concentración de hormona luteinizante en su sangre, reportada en mIU/mL. LH normal varía dramáticamente por sexo y fase del ciclo menstrual. Mujeres: Fase folicular 2-15 mIU/mL, Pico medio ciclo 22-105 mIU/mL, Fase lútea 0.6-19 mIU/mL, Posmenopausia 15-62 mIU/mL. Hombres: 1.5-9.3 mIU/mL.","symptomsAddressed_es":["Dificultad para concebir","Períodos irregulares o ausentes","Signos de SOP (acné, exceso de vello)","Bajo deseo sexual o disfunción eréctil","Sofocos o síntomas menopáusicos"],"whoIsItFor_es":"Mujeres investigando infertilidad o irregularidades menstruales, aquellas rastreando ovulación para concepción, mujeres con sospecha de SOP, hombres con síntomas de testosterona baja, individuos con pubertad retrasada o precoz, y cualquier persona evaluando función pituitaria.","faqs_es":[{"question":"¿Por qué es importante la proporción LH:FSH?","answer":"En mujeres, la proporción de LH a FSH ayuda a diagnosticar SOP. Normalmente, LH y FSH son aproximadamente iguales en la fase folicular temprana. En SOP, LH a menudo está elevada en relación a FSH (proporción >2:1 o >3:1)."},{"question":"¿Puede LH detectar la ovulación?","answer":"Sí, LH aumenta dramáticamente (3-4x línea base) aproximadamente 24-36 horas antes de la ovulación. Los kits de predicción de ovulación caseros detectan este pico de LH en orina."},{"question":"¿Debería analizar LH solo o con FSH?","answer":"Analizar tanto LH como FSH juntos proporciona más información diagnóstica que cualquiera solo."},{"question":"¿Qué afecta los niveles de LH?","answer":"Los niveles de LH varían con el ciclo menstrual, edad y ciertas condiciones. Las píldoras anticonceptivas suprimen LH. El estrés, cambios extremos de peso y ejercicio intenso pueden reducir LH."}],"createdAt":{"_nanoseconds":132000000,"_seconds":1769634722},"cptCode":"83002"},{"id":"fsh-lh","questCode":"7137","name":"FSH & LH","shortName":"FSH & LH","description":"Combined panel measuring both FSH and LH for comprehensive reproductive hormone assessment.","category":"fertility","price":18,"costPrice":12.5,"fastingRequired":false,"labVendor":"Quest","biomarkers":["FSH","LH"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"FSH & LH Panel - $18 | Fertility Hormone Test | Justlabs","metaDescription":"Order an FSH & LH combined panel for $18. Comprehensive fertility assessment measuring both key reproductive hormones together. Results in 1-2 days.","h1Title":"FSH & LH Combined Fertility Panel","shortSummary":"The FSH & LH panel measures both follicle stimulating hormone and luteinizing hormone together, providing comprehensive insight into reproductive function, fertility status, and hormonal balance.","longDescription":"This combined panel measures both FSH (Follicle Stimulating Hormone) and LH (Luteinizing Hormone), the two primary gonadotropins produced by the pituitary gland that regulate reproductive function. Testing both together provides more clinical value than either alone.\n\nFSH and LH work in concert to regulate the menstrual cycle and fertility. FSH stimulates follicle development early in the cycle, while LH triggers ovulation mid-cycle. The ratio between these hormones is particularly important for diagnosing conditions like PCOS.\n\nIn men, both hormones are essential for sperm production and testosterone synthesis. Evaluating both provides insight into whether fertility issues originate from the pituitary gland or the gonads.","whatItMeasures":"This panel measures both FSH and LH in mIU/mL. Normal early follicular FSH is 3-10 mIU/mL, LH is 2-15 mIU/mL. The FSH:LH ratio is normally close to 1:1 in early follicular phase. In PCOS, LH is often elevated relative to FSH (ratio >2:1).\n\nHere is a guide to better understand your FSH lab results:\n{{article:fsh-lab-test}} ","whoIsItFor":"Women investigating fertility issues, those with irregular periods or PCOS symptoms, women assessing menopause status, men with fertility concerns, anyone needing comprehensive reproductive hormone assessment.","symptomsAddressed":["Difficulty conceiving","Irregular menstrual cycles","Signs of PCOS (acne, hirsutism)","Absent periods","Menopausal symptoms","Male infertility","Low testosterone symptoms","Unexplained weight gain"],"conditionsScreened":["PCOS","Diminished ovarian reserve","Menopause","Hypothalamic amenorrhea","Pituitary disorders","Male hypogonadism","Premature ovarian failure","Ovulatory dysfunction"],"whenToTest":"No fasting required. For fertility and PCOS assessment, test on days 2-4 of the menstrual cycle. This timing provides the most useful baseline levels and FSH:LH ratio for diagnosis.","resultsOverview":"Normal early follicular: FSH 3-10, LH 2-15 mIU/mL (ratio ~1:1). In PCOS, LH is often elevated with ratio >2:1. Elevated FSH with normal LH suggests diminished ovarian reserve. Both elevated suggests menopause.","faqs":[{"question":"Why test FSH and LH together?","answer":"The FSH:LH ratio provides diagnostic information not available from either test alone. A ratio above 2:1 (LH higher than FSH) on day 3 is a classic sign of PCOS, while elevated FSH with normal LH suggests ovarian reserve issues."},{"question":"What does an elevated LH:FSH ratio mean?","answer":"An LH:FSH ratio above 2:1 or 3:1 is commonly seen in PCOS. This hormonal imbalance can interfere with ovulation and contribute to symptoms like irregular periods, acne, and excess hair growth."},{"question":"Is this panel better than testing separately?","answer":"Yes, testing together is more cost-effective and ensures both samples are from the same cycle day, making the ratio calculation accurate. It's the preferred approach for fertility assessment."},{"question":"Can this panel diagnose PCOS?","answer":"An elevated LH:FSH ratio supports PCOS diagnosis but isn't sufficient alone. PCOS diagnosis also considers symptoms (irregular periods, hyperandrogenism) and sometimes ultrasound findings."}],"relatedTests":["fsh","lh","estradiol","amh","testosterone-total"],"name_es":"FSH y LH","biomarkers_es":["FSH","LH"],"description_es":"Panel de hormonas reproductivas que mide tanto FSH como LH para evaluación integral de fertilidad.","shortName_es":"FSH y LH","whenToTest_es":"No se requiere ayuno. Para evaluación de fertilidad y SOP, analice en los días 2-4 del ciclo menstrual. Este momento proporciona los niveles basales más útiles y la proporción FSH:LH para diagnóstico.","longDescription_es":"Este panel combinado mide tanto FSH (Hormona Folículo Estimulante) como LH (Hormona Luteinizante), las dos gonadotropinas primarias producidas por la glándula pituitaria que regulan la función reproductiva. Analizar ambas juntas proporciona más valor clínico que cualquiera sola.\n\nFSH y LH trabajan en conjunto para regular el ciclo menstrual y la fertilidad. FSH estimula el desarrollo folicular temprano en el ciclo, mientras que LH desencadena la ovulación a mitad del ciclo. La proporción entre estas hormonas es particularmente importante para diagnosticar condiciones como SOP.","conditionsScreened_es":["SOP","Reserva ovárica disminuida","Menopausia","Amenorrea hipotalámica","Trastornos pituitarios","Hipogonadismo masculino"],"shortSummary_es":"El panel FSH y LH mide tanto la hormona folículo estimulante como la hormona luteinizante juntas, proporcionando información completa sobre función reproductiva, estado de fertilidad y equilibrio hormonal.","whatItMeasures_es":"Este panel mide tanto FSH como LH en mIU/mL. FSH folicular temprana normal es 3-10 mIU/mL, LH es 2-15 mIU/mL. La proporción FSH:LH es normalmente cercana a 1:1 en fase folicular temprana. En SOP, LH a menudo está elevada en relación a FSH (proporción >2:1).","symptomsAddressed_es":["Dificultad para concebir","Ciclos menstruales irregulares","Signos de SOP (acné, hirsutismo)","Períodos ausentes","Síntomas menopáusicos","Infertilidad masculina"],"whoIsItFor_es":"Mujeres investigando problemas de fertilidad, aquellas con períodos irregulares o síntomas de SOP, mujeres evaluando estado de menopausia, hombres con preocupaciones de fertilidad, cualquier persona que necesite evaluación hormonal reproductiva completa.","faqs_es":[{"question":"¿Por qué analizar FSH y LH juntos?","answer":"La proporción FSH:LH proporciona información diagnóstica no disponible de ninguna prueba sola. Una proporción superior a 2:1 (LH más alta que FSH) en el día 3 es un signo clásico de SOP."},{"question":"¿Qué significa una proporción LH:FSH elevada?","answer":"Una proporción LH:FSH superior a 2:1 o 3:1 se ve comúnmente en SOP. Este desequilibrio hormonal puede interferir con la ovulación y contribuir a síntomas como períodos irregulares, acné y exceso de vello."},{"question":"¿Es mejor este panel que analizar por separado?","answer":"Sí, analizar juntos es más rentable y asegura que ambas muestras sean del mismo día del ciclo, haciendo el cálculo de proporción preciso."},{"question":"¿Puede este panel diagnosticar SOP?","answer":"Una proporción LH:FSH elevada apoya el diagnóstico de SOP pero no es suficiente sola. El diagnóstico de SOP también considera síntomas y a veces hallazgos de ultrasonido."}],"cptCode":"83001, 83002"},{"id":"amh","questCode":"37227","name":"AMH (Anti-Mullerian Hormone)","shortName":"AMH","description":"Measures ovarian reserve and is the best predictor of remaining egg supply.","category":"fertility","price":110,"costPrice":95.07,"fastingRequired":false,"labVendor":"Quest","biomarkers":["AMH"],"turnaroundDays":"2-3","popular":true,"sampleTypes":["serum"],"metaTitle":"AMH Test - $97 | Ovarian Reserve & Fertility Testing | Justlabs","metaDescription":"Order an AMH (Anti-Mullerian Hormone) test for $97. The best predictor of ovarian reserve and remaining egg supply. No fasting required. Results in 2-3 days.","h1Title":"AMH (Anti-Mullerian Hormone) Blood Test","shortSummary":"AMH is the most accurate blood test for assessing ovarian reserve - your remaining egg supply and reproductive potential.","longDescription":"Anti-Mullerian Hormone (AMH) is produced by the granulosa cells in ovarian follicles. Because AMH levels directly correlate with the number of remaining eggs, it's considered the gold standard for measuring ovarian reserve.\n\nUnlike FSH and other fertility hormones, AMH can be tested at any point in your menstrual cycle and remains relatively stable month to month. This makes it an ideal test for family planning, fertility treatment planning, or simply understanding your reproductive timeline.","whatItMeasures":"This test measures the level of Anti-Mullerian Hormone in your blood, expressed in ng/mL. Normal ranges vary by age: women in their 20s typically have levels of 2.0-6.8 ng/mL, while levels naturally decline with age. Levels below 1.0 ng/mL may indicate diminished ovarian reserve.","whoIsItFor":"Women considering future pregnancy timing, those starting fertility treatments (IVF/IUI), women with PCOS (who often have elevated AMH), anyone wanting to understand their ovarian reserve, and women over 35 planning for pregnancy.","symptomsAddressed":["Irregular periods","Difficulty conceiving","Family planning questions","PCOS symptoms","Early menopause concerns","Fertility treatment planning"],"conditionsScreened":["Diminished ovarian reserve","PCOS (elevated AMH)","Premature ovarian insufficiency","Menopause timing","IVF response prediction"],"whenToTest":"AMH can be tested any day of your menstrual cycle - no timing required. Unlike FSH, AMH doesn't fluctuate significantly during your cycle. No fasting needed. Results are most meaningful when interpreted with your age.","resultsOverview":"Higher AMH generally indicates a larger ovarian reserve. Very high levels (>6.8 ng/mL) may suggest PCOS. Low levels (<1.0 ng/mL) indicate diminished ovarian reserve. Results should be interpreted in context of age - a \"low\" AMH at 25 is more concerning than at 40.","faqs":[{"question":"Can I test AMH any day of my cycle?","answer":"Yes! Unlike FSH and other fertility hormones, AMH levels remain stable throughout your menstrual cycle. You can test any day without affecting accuracy."},{"question":"What does low AMH mean for my fertility?","answer":"Low AMH indicates fewer remaining eggs, but it doesn't measure egg quality. Women with low AMH can still conceive, though they may have fewer eggs retrieved during IVF. It's one piece of the fertility puzzle."},{"question":"Can AMH levels be improved?","answer":"AMH levels cannot be significantly increased as they reflect your biological egg count. However, some supplements like DHEA and CoQ10 may support overall egg quality. Focus on overall health for best outcomes."},{"question":"Why is my AMH high? Could I have PCOS?","answer":"Elevated AMH (>6.8 ng/mL) is common in PCOS due to the many small follicles present in polycystic ovaries. If you have high AMH with irregular periods, discuss PCOS evaluation with your doctor."}],"relatedTests":["fsh","lh","estradiol","testosterone-free-total"],"createdBy":"script","name_es":"AMH (Hormona Antimülleriana)","biomarkers_es":["AMH"],"description_es":"Mide la hormona antimülleriana. Indica reserva ovárica y potencial de fertilidad en mujeres.","shortName_es":"AMH","whenToTest_es":"AMH puede analizarse cualquier día de su ciclo menstrual - no se requiere momento específico. A diferencia de FSH, AMH no fluctúa significativamente durante su ciclo. No se necesita ayuno. Los resultados son más significativos cuando se interpretan con su edad.","longDescription_es":"La Hormona Antimülleriana (AMH) es producida por las células de la granulosa en los folículos ováricos. Debido a que los niveles de AMH se correlacionan directamente con el número de óvulos restantes, se considera el estándar de oro para medir la reserva ovárica.\n\nA diferencia de FSH y otras hormonas de fertilidad, AMH puede analizarse en cualquier punto de su ciclo menstrual y permanece relativamente estable mes a mes. Esto la hace una prueba ideal para planificación familiar, planificación de tratamiento de fertilidad, o simplemente entender su línea de tiempo reproductiva.","conditionsScreened_es":["Reserva ovárica disminuida","SOP (AMH elevada)","Insuficiencia ovárica prematura","Momento de menopausia","Predicción de respuesta a FIV"],"shortSummary_es":"AMH es la prueba de sangre más precisa para evaluar la reserva ovárica - su suministro de óvulos restante y potencial reproductivo.","whatItMeasures_es":"Esta prueba mide el nivel de Hormona Antimülleriana en su sangre, expresado en ng/mL. Los rangos normales varían según la edad: mujeres en sus 20s típicamente tienen niveles de 2.0-6.8 ng/mL, mientras que los niveles disminuyen naturalmente con la edad. Niveles por debajo de 1.0 ng/mL pueden indicar reserva ovárica disminuida.","symptomsAddressed_es":["Períodos irregulares","Dificultad para concebir","Preguntas de planificación familiar","Síntomas de SOP","Preocupaciones de menopausia temprana"],"whoIsItFor_es":"Mujeres considerando el momento del embarazo futuro, aquellas iniciando tratamientos de fertilidad (FIV/IUI), mujeres con SOP (que a menudo tienen AMH elevada), cualquier persona que quiera entender su reserva ovárica, y mujeres mayores de 35 que planean embarazo.","faqs_es":[{"question":"¿Puedo analizar AMH cualquier día de mi ciclo?","answer":"¡Sí! A diferencia de FSH y otras hormonas de fertilidad, los niveles de AMH permanecen estables durante su ciclo menstrual. Puede analizar cualquier día sin afectar la precisión."},{"question":"¿Qué significa AMH baja para mi fertilidad?","answer":"AMH baja indica menos óvulos restantes, pero no mide la calidad del óvulo. Mujeres con AMH baja aún pueden concebir, aunque pueden tener menos óvulos recuperados durante FIV."},{"question":"¿Se pueden mejorar los niveles de AMH?","answer":"Los niveles de AMH no pueden aumentarse significativamente ya que reflejan su conteo biológico de óvulos. Sin embargo, algunos suplementos como DHEA y CoQ10 pueden apoyar la calidad general del óvulo."},{"question":"¿Por qué mi AMH es alta? ¿Podría tener SOP?","answer":"AMH elevada (>6.8 ng/mL) es común en SOP debido a los muchos folículos pequeños presentes en ovarios poliquísticos. Si tiene AMH alta con períodos irregulares, discuta la evaluación de SOP con su médico."}],"createdAt":{"_nanoseconds":229000000,"_seconds":1769634722},"cptCode":"82166"},{"id":"cbc-diff","questCode":"6399","name":"Complete Blood Count with Differential","shortName":"CBC w/ Diff","description":"Comprehensive blood cell analysis including red cells, white cells, platelets, and white cell differential.","category":"general","price":6,"costPrice":3.67,"fastingRequired":false,"labVendor":"Quest","biomarkers":["WBC","RBC","Hemoglobin","Hematocrit","MCV","MCH","MCHC","RDW","Platelets","Neutrophils","Lymphocytes","Monocytes","Eosinophils","Basophils"],"turnaroundDays":"1","popular":true,"sampleTypes":["whole-blood"],"metaTitle":"CBC with Differential Test - $5 | Complete Blood Count | Justlabs","metaDescription":"Order a Complete Blood Count (CBC) with Differential for just $5. Measures red cells, white cells, platelets, and immune cell types. Results in 1 day.","h1Title":"Complete Blood Count (CBC) with Differential","shortSummary":"The CBC with Differential is one of the most commonly ordered blood tests, providing a comprehensive snapshot of your overall health through detailed blood cell analysis.","longDescription":"The Complete Blood Count (CBC) with Differential is one of the most commonly ordered blood tests, providing a comprehensive snapshot of your overall health. It measures red blood cells, white blood cells, platelets, hemoglobin, and hematocrit levels.\n\nThis test is essential for detecting infections, anemia, blood disorders, and monitoring overall health. The differential breaks down white blood cells into five types (neutrophils, lymphocytes, monocytes, eosinophils, basophils), helping identify specific conditions.","whatItMeasures":"This test measures 14 key blood parameters: WBC (total white blood cell count), RBC (red blood cell count), Hemoglobin (oxygen-carrying protein), Hematocrit (percentage of blood volume from red cells), MCV (average red cell size), MCH (hemoglobin per red cell), MCHC (hemoglobin concentration), RDW (red cell size variation), Platelets (clotting cells), plus the five white cell types: Neutrophils, Lymphocytes, Monocytes, Eosinophils, and Basophils.","whoIsItFor":"Anyone seeking a general health assessment, people experiencing fatigue, weakness, or unexplained bruising, those with suspected infections or immune issues, individuals with a family history of blood disorders, and anyone starting a new health baseline.","symptomsAddressed":["Fatigue and weakness","Frequent infections","Unexplained bruising or bleeding","Pale skin","Shortness of breath","Dizziness","Fever","Swollen lymph nodes"],"conditionsScreened":["Anemia","Infection","Leukemia","Thrombocytopenia","Polycythemia","Immune disorders","Bone marrow disorders","Allergies"],"whenToTest":"No fasting is required. This test can be taken at any time of day. It is commonly ordered as part of an annual physical, when symptoms suggest a blood disorder, before surgery, or to monitor ongoing conditions.","resultsOverview":"Results show counts and percentages for each cell type compared to reference ranges. Low red cells or hemoglobin may indicate anemia, while high white cells often suggest infection or inflammation. The differential helps pinpoint whether an immune response is bacterial, viral, allergic, or parasitic in nature.\n\n{{article:full-blood-count-abnormal}}                                                                                                                          ","faqs":[{"question":"Why is the differential important?","answer":"The differential breaks down white blood cells into five types, each responding to different threats. Elevated neutrophils suggest bacterial infection, high lymphocytes may indicate viral infection, and elevated eosinophils can point to allergies or parasites. This detail helps identify the cause of illness."},{"question":"What does low hemoglobin mean?","answer":"Low hemoglobin indicates anemia, which can result from iron deficiency, vitamin B12 or folate deficiency, chronic disease, blood loss, or bone marrow problems. Symptoms include fatigue, weakness, and pale skin. Further testing may be needed to determine the cause."},{"question":"Can dehydration affect CBC results?","answer":"Yes, dehydration can artificially elevate red blood cell counts, hemoglobin, and hematocrit because there is less fluid in the blood. Staying well-hydrated before your test ensures accurate results."},{"question":"How often should I get a CBC?","answer":"Most healthy adults benefit from a CBC during their annual physical. Those with chronic conditions, on certain medications, or with blood disorders may need more frequent monitoring as recommended by their healthcare provider."}],"relatedTests":["cmp","iron-panel","ferritin","vitamin-b12"],"name_es":"Hemograma Completo con Diferencial","biomarkers_es":["Glóbulos Blancos","Glóbulos Rojos","Hemoglobina","Hematocrito","VCM","HCM","CHCM","ADE","Plaquetas","Neutrófilos","Linfocitos","Monocitos","Eosinófilos","Basófilos"],"whenToTest_es":"No se requiere ayuno. Esta prueba puede hacerse a cualquier hora del día. Se ordena comúnmente como parte de un examen físico anual, cuando los síntomas sugieren un trastorno sanguíneo, antes de cirugía, o para monitorear condiciones en curso.","metaDescription_es":"Ordena un Hemograma Completo (CBC) con Diferencial por solo $5. Mide glóbulos rojos, glóbulos blancos, plaquetas y tipos de células inmunes. Resultados en 1 día.","preparationInstructions_es":"No se necesita preparación especial. Informa a tu proveedor sobre cualquier medicamento que estés tomando, ya que algunos pueden afectar los resultados.","h1Title_es":"Hemograma Completo (CBC) con Diferencial","metaTitle_es":"Hemograma con Diferencial - $5 | Conteo Sanguíneo Completo | Justlabs","shortName_es":"Hemograma","symptomsAddressed_es":["Fatiga","Debilidad","Moretones fáciles","Infecciones frecuentes","Fiebre inexplicable","Sangrado anormal"],"whoIsItFor_es":"Cualquier persona que busque una evaluación general de salud, personas que experimentan fatiga, debilidad o moretones inexplicables, quienes tienen sospecha de infecciones o problemas inmunológicos, individuos con antecedentes familiares de trastornos sanguíneos, y cualquiera que establezca una línea base de salud.","resultsOverview_es":"Los resultados muestran conteos y porcentajes para cada tipo de célula comparados con rangos de referencia. Glóbulos rojos o hemoglobina bajos pueden indicar anemia, mientras que glóbulos blancos altos a menudo sugieren infección o inflamación. El diferencial ayuda a determinar si una respuesta inmune es bacteriana, viral, alérgica o parasitaria en naturaleza.","longDescription_es":"El Hemograma Completo (CBC) con Diferencial es una de las pruebas de sangre más comúnmente ordenadas, proporcionando una instantánea completa de tu salud general. Mide glóbulos rojos, glóbulos blancos, plaquetas, hemoglobina y niveles de hematocrito.\n\nEsta prueba es esencial para detectar infecciones, anemia, trastornos sanguíneos y monitorear la salud general. El diferencial desglosa los glóbulos blancos en cinco tipos (neutrófilos, linfocitos, monocitos, eosinófilos, basófilos), ayudando a identificar condiciones específicas.","conditionsScreened_es":["Anemia","Infección","Trastornos de coagulación","Leucemia","Respuestas inmunológicas","Deficiencias nutricionales"],"description_es":"Análisis integral de células sanguíneas que incluye glóbulos rojos, glóbulos blancos, plaquetas y diferencial de glóbulos blancos.","shortSummary_es":"El Hemograma con Diferencial es una de las pruebas de sangre más comúnmente ordenadas, proporcionando una instantánea completa de tu salud general a través del análisis detallado de células sanguíneas.","whatItMeasures_es":"Esta prueba mide 14 parámetros sanguíneos clave: Glóbulos blancos (conteo total), Glóbulos rojos (conteo), Hemoglobina (proteína transportadora de oxígeno), Hematocrito (porcentaje de volumen sanguíneo de glóbulos rojos), VCM (tamaño promedio de glóbulos rojos), HCM (hemoglobina por glóbulo rojo), CHCM (concentración de hemoglobina), ADE (variación de tamaño de glóbulos rojos), Plaquetas (células de coagulación), más los cinco tipos de glóbulos blancos: Neutrófilos, Linfocitos, Monocitos, Eosinófilos y Basófilos.","cptCode":"85025"},{"id":"cmp","questCode":"10231","name":"Comprehensive Metabolic Panel","shortName":"CMP","description":"Measures 14 substances including glucose, electrolytes, kidney and liver function markers.","category":"metabolic","price":9.5,"costPrice":7.9,"fastingRequired":true,"fastingHours":8,"labVendor":"Quest","biomarkers":["Glucose","BUN","Creatinine","eGFR","Sodium","Potassium","Chloride","CO2","Calcium","Total Protein","Albumin","Globulin","Bilirubin","Alkaline Phosphatase","AST","ALT"],"turnaroundDays":"1","popular":true,"sampleTypes":["serum"],"metaTitle":"Comprehensive Metabolic Panel (CMP) Test - $10 | Justlabs","metaDescription":"Order a Comprehensive Metabolic Panel for just $10. Measures 14 markers including glucose, electrolytes, kidney and liver function. 8-hour fasting required. Results in 1 day.","h1Title":"Comprehensive Metabolic Panel (CMP)","shortSummary":"The CMP is a widely used screening test that provides important information about your metabolism, including blood sugar, electrolyte balance, kidney function, and liver health.","longDescription":"The Comprehensive Metabolic Panel (CMP) is one of the most commonly ordered blood tests, providing a broad assessment of your body's chemical balance and metabolism. This 14-test panel evaluates glucose levels for diabetes screening, electrolytes (sodium, potassium, chloride, CO2) for fluid balance and nerve/muscle function, kidney markers (BUN, creatinine, eGFR) for filtration efficiency, and liver enzymes (AST, ALT, alkaline phosphatase, bilirubin) for hepatic health. The test also measures proteins (albumin, total protein, globulin) which reflect nutritional status and liver synthetic function. Healthcare providers use the CMP to screen for conditions, monitor chronic diseases, and establish baseline health metrics.","whatItMeasures":"This panel measures 14 markers: Glucose (blood sugar), BUN (blood urea nitrogen), Creatinine, eGFR (estimated kidney filtration rate), Sodium, Potassium, Chloride, CO2 (bicarbonate), Calcium, Total Protein, Albumin, Globulin, Bilirubin, Alkaline Phosphatase, AST (liver enzyme), and ALT (liver enzyme).","whoIsItFor":"Anyone wanting a comprehensive metabolic health assessment, people with diabetes or prediabetes, those taking medications that affect the kidneys or liver, individuals with symptoms of dehydration or electrolyte imbalance, and anyone establishing a baseline for annual checkups.","symptomsAddressed":["Fatigue","Excessive thirst or urination","Nausea","Confusion","Muscle weakness","Abdominal pain","Yellowing of skin or eyes","Swelling in legs or feet"],"conditionsScreened":["Diabetes","Kidney disease","Liver disease","Electrolyte imbalances","Dehydration","Metabolic syndrome","Malnutrition","Hepatitis"],"whenToTest":"Fasting for 8-12 hours is required for accurate glucose results. Water is allowed. Morning appointments are often preferred. Avoid alcohol for 24 hours before testing.","resultsOverview":"Results compare your values to established reference ranges. Out-of-range values may indicate conditions requiring attention. High glucose suggests diabetes risk, elevated creatinine or BUN may indicate kidney stress, and elevated liver enzymes (AST, ALT) can signal liver inflammation. Your healthcare provider interprets results in context of your health history.","faqs":[{"question":"Why do I need to fast for a CMP?","answer":"Fasting is required primarily for accurate glucose measurement. Eating raises blood sugar levels, which can give a false impression of your baseline glucose control. Other markers like electrolytes are less affected by food, but fasting ensures the most reliable results across all 14 markers."},{"question":"What's the difference between a CMP and BMP?","answer":"The Basic Metabolic Panel (BMP) includes 8 tests focusing on glucose, electrolytes, and kidney function. The CMP adds 6 more tests covering liver function (AST, ALT, alkaline phosphatase, bilirubin) and proteins (albumin, total protein). The CMP provides a more complete picture of metabolic health."},{"question":"Can medications affect my CMP results?","answer":"Yes, many medications can affect CMP values. Diuretics affect electrolytes, certain pain medications and statins can elevate liver enzymes, and some drugs affect kidney function markers. Always inform your healthcare provider about all medications and supplements you take."},{"question":"How often should I get a CMP?","answer":"For healthy adults, annually during a routine physical is typical. Those with chronic conditions like diabetes, kidney disease, or liver disease may need more frequent monitoring—quarterly or as directed by their healthcare provider."}],"relatedTests":["bmp","hepatic-panel","hemoglobin-a1c","lipid-panel"],"name_es":"Panel Metabólico Integral","biomarkers_es":["Glucosa","BUN","Creatinina","eGFR","Sodio","Potasio","Cloruro","CO2","Calcio","Proteína Total","Albúmina","Bilirrubina","Fosfatasa Alcalina","ALT","AST"],"whenToTest_es":"Se puede requerir ayuno de 8-12 horas para resultados de glucosa más precisos. A menudo se ordena como parte de chequeos de rutina o monitoreo de medicamentos.","metaDescription_es":"Ordena un Panel Metabólico Integral por $7. Analiza función renal, función hepática, electrolitos y glucosa. 14 marcadores esenciales. Resultados en 1-2 días.","preparationInstructions_es":"Se recomienda ayuno de 8-12 horas para una glucosa en ayunas precisa. Bebe agua normalmente. Continúa con los medicamentos a menos que se indique lo contrario.","h1Title_es":"Panel Metabólico Integral (PMI)","metaTitle_es":"Panel Metabólico Integral - $7 | Prueba de Sangre PMI | Justlabs","shortName_es":"PMI","symptomsAddressed_es":["Tamizaje de salud general","Fatiga","Cambios en la orina","Dolor abdominal","Náuseas","Hinchazón"],"whoIsItFor_es":"Cualquier persona que busque tamizaje de salud general, quienes toman medicamentos que afectan riñones o hígado, personas con diabetes o en riesgo, quienes tienen presión arterial alta, y cualquiera que establezca una línea base de salud.","resultsOverview_es":"Busca valores dentro de los rangos de referencia. Glucosa en ayunas <100 mg/dL es normal. Enzimas hepáticas ligeramente elevadas pueden necesitar seguimiento. Función renal anormal (alto BUN/Creatinina o bajo eGFR) requiere investigación adicional.","longDescription_es":"El Panel Metabólico Integral (PMI) es una de las pruebas de tamizaje más comúnmente ordenadas, proporcionando una visión amplia de tu salud metabólica a través de 14 mediciones:\n\n• Glucosa - Nivel de azúcar en sangre\n• Electrolitos (Sodio, Potasio, Cloruro, CO2) - Equilibrio de fluidos y función nerviosa\n• Función Renal (BUN, Creatinina, eGFR) - Qué tan bien funcionan tus riñones\n• Función Hepática (ALT, AST, ALP, Bilirrubina) - Salud del hígado\n• Proteínas (Albúmina, Proteína Total) - Estado nutricional\n• Calcio - Huesos, nervios, función muscular","conditionsScreened_es":["Enfermedad renal","Enfermedad hepática","Diabetes","Desequilibrios de electrolitos","Deshidratación"],"description_es":"Mide 14 sustancias que incluyen glucosa, electrolitos, función renal y función hepática.","shortSummary_es":"El Panel Metabólico Integral es una prueba de 14 marcadores que evalúa el azúcar en sangre, el equilibrio de electrolitos, la función renal y la función hepática - proporcionando una visión completa de tu salud metabólica.","whatItMeasures_es":"Esta prueba mide 14 marcadores: Glucosa, BUN, Creatinina, eGFR, Sodio, Potasio, Cloruro, CO2, Calcio, Proteína Total, Albúmina, Bilirrubina, Fosfatasa Alcalina, ALT (SGPT) y AST (SGOT).","cptCode":"80053"},{"id":"bmp","questCode":"10165","name":"Basic Metabolic Panel","shortName":"BMP","description":"Measures 8 substances including glucose, electrolytes, and kidney function markers.","category":"metabolic","price":6,"costPrice":3,"fastingRequired":true,"fastingHours":8,"labVendor":"Quest","biomarkers":["Glucose","BUN","Creatinine","eGFR","Sodium","Potassium","Chloride","CO2","Calcium"],"turnaroundDays":"1","sampleTypes":["serum"],"metaTitle":"Basic Metabolic Panel (BMP) Test - $8 | Justlabs","metaDescription":"Order a Basic Metabolic Panel for just $8. Measures glucose, electrolytes, kidney function, and calcium. 8-hour fasting required. Results in 1 day.","h1Title":"Basic Metabolic Panel (BMP)","shortSummary":"The BMP is an essential screening test that measures blood sugar, electrolyte balance, and kidney function—key indicators of your body's metabolic health.","longDescription":"The Basic Metabolic Panel (BMP) is a foundational blood test that evaluates eight critical markers reflecting your metabolic health. It measures glucose for blood sugar control, electrolytes (sodium, potassium, chloride, and CO2/bicarbonate) for fluid balance and nerve/muscle function, and kidney function markers (BUN, creatinine, eGFR) to assess how well your kidneys filter waste. Calcium levels are also included, important for bone health, muscle function, and nerve signaling. The BMP is frequently ordered as part of routine checkups, emergency assessments, and to monitor patients on certain medications. It provides essential information quickly and affordably.","whatItMeasures":"This panel measures 8 key markers: Glucose (blood sugar), BUN (blood urea nitrogen - kidney waste product), Creatinine (kidney filtration marker), eGFR (estimated glomerular filtration rate), Sodium, Potassium, Chloride, CO2 (bicarbonate - acid-base balance), and Calcium.","whoIsItFor":"Anyone seeking a basic metabolic health check, people monitoring diabetes or prediabetes, those with symptoms of electrolyte imbalance (muscle cramps, fatigue), individuals on blood pressure medications or diuretics, and anyone wanting an affordable health screening.","symptomsAddressed":["Fatigue","Muscle weakness or cramps","Excessive thirst","Frequent urination","Confusion","Irregular heartbeat","Nausea","Numbness or tingling"],"conditionsScreened":["Diabetes","Kidney disease","Dehydration","Electrolyte imbalances","Acidosis or alkalosis","Hypertension effects","Medication side effects"],"whenToTest":"Fasting for 8-12 hours is required for accurate glucose measurement. Water is allowed and encouraged. Morning appointments work best for fasting tests.","resultsOverview":"Results are compared to standard reference ranges. Abnormal glucose may indicate diabetes or prediabetes. Electrolyte imbalances can affect heart rhythm and muscle function. Elevated BUN or creatinine may suggest kidney stress. Your healthcare provider will interpret results in context of your overall health.","faqs":[{"question":"What's the difference between BMP and CMP?","answer":"The BMP includes 8 tests covering glucose, electrolytes, and kidney function. The Comprehensive Metabolic Panel (CMP) includes all BMP markers plus 6 additional tests for liver function (AST, ALT, alkaline phosphatase, bilirubin) and proteins (albumin, total protein). Choose BMP for basic metabolic screening; CMP for a more complete picture."},{"question":"Why are electrolytes important?","answer":"Electrolytes (sodium, potassium, chloride, bicarbonate) regulate fluid balance, nerve signals, muscle contractions, and pH balance. Imbalances can cause muscle cramps, weakness, irregular heartbeat, confusion, and other symptoms. Common causes include dehydration, certain medications, kidney problems, and hormonal issues."},{"question":"What does eGFR tell me?","answer":"eGFR (estimated Glomerular Filtration Rate) indicates how well your kidneys filter blood. Values above 90 are normal, 60-89 suggest mild kidney function loss, and below 60 may indicate chronic kidney disease. This calculation uses your creatinine level along with age, sex, and other factors."},{"question":"Can I drink water before a BMP?","answer":"Yes, water is allowed and encouraged before a fasting BMP. Staying hydrated helps with blood draw and doesn't affect glucose or other markers. Avoid coffee, tea, juice, and other beverages that could impact results."}],"relatedTests":["cmp","hemoglobin-a1c","lipid-panel","cystatin-c"],"name_es":"Panel Metabólico Básico","biomarkers_es":["Glucosa","BUN","Creatinina","Sodio","Potasio","Cloruro","CO2","Calcio"],"description_es":"Panel de 8 pruebas que evalúa glucosa, función renal y equilibrio de electrolitos.","shortName_es":"PMB","whenToTest_es":"Se requiere ayuno de 8-12 horas para una medición precisa de glucosa. Se permite y recomienda el agua. Las citas matutinas funcionan mejor para pruebas en ayunas.","longDescription_es":"El Panel Metabólico Básico (BMP) es una prueba de sangre fundamental que evalúa ocho marcadores críticos que reflejan su salud metabólica. Mide glucosa para control de azúcar en sangre, electrolitos (sodio, potasio, cloruro y CO2/bicarbonato) para equilibrio de líquidos y función nerviosa/muscular, y marcadores de función renal (BUN, creatinina, eGFR) para evaluar qué tan bien sus riñones filtran desechos. También se incluyen niveles de calcio, importantes para salud ósea, función muscular y señalización nerviosa.","conditionsScreened_es":["Diabetes","Enfermedad renal","Deshidratación","Desequilibrios electrolíticos","Acidosis o alcalosis","Efectos de hipertensión"],"shortSummary_es":"El BMP es una prueba de detección esencial que mide azúcar en sangre, equilibrio electrolítico y función renal - indicadores clave de la salud metabólica de su cuerpo.","whatItMeasures_es":"Este panel mide 8 marcadores clave: Glucosa (azúcar en sangre), BUN (nitrógeno ureico - producto de desecho renal), Creatinina (marcador de filtración renal), eGFR (tasa de filtración glomerular estimada), Sodio, Potasio, Cloruro, CO2 (bicarbonato - equilibrio ácido-base) y Calcio.","symptomsAddressed_es":["Fatiga","Debilidad muscular o calambres","Sed excesiva","Micción frecuente","Confusión","Latidos cardíacos irregulares","Náuseas"],"whoIsItFor_es":"Cualquier persona que busque un chequeo básico de salud metabólica, personas que monitorean diabetes o prediabetes, aquellos con síntomas de desequilibrio electrolítico (calambres musculares, fatiga), individuos con medicamentos para presión arterial o diuréticos, y cualquier persona que desee un examen de salud asequible.","faqs_es":[{"question":"¿Cuál es la diferencia entre BMP y CMP?","answer":"El BMP incluye 8 pruebas que cubren glucosa, electrolitos y función renal. El Panel Metabólico Completo (CMP) incluye todos los marcadores del BMP más 6 pruebas adicionales para función hepática y proteínas."},{"question":"¿Por qué son importantes los electrolitos?","answer":"Los electrolitos (sodio, potasio, cloruro, bicarbonato) regulan el equilibrio de líquidos, señales nerviosas, contracciones musculares y equilibrio de pH. Los desequilibrios pueden causar calambres musculares, debilidad, latidos cardíacos irregulares y confusión."},{"question":"¿Qué me dice eGFR?","answer":"eGFR indica qué tan bien sus riñones filtran la sangre. Valores superiores a 90 son normales, 60-89 sugieren pérdida leve de función renal, y por debajo de 60 puede indicar enfermedad renal crónica."},{"question":"¿Puedo beber agua antes de un BMP?","answer":"Sí, el agua está permitida y se recomienda antes de un BMP en ayunas. Mantenerse hidratado ayuda con la extracción de sangre y no afecta la glucosa u otros marcadores."}],"cptCode":"80048"},{"id":"hepatic-panel","questCode":"10256","name":"Hepatic Function Panel","shortName":"Liver Panel","description":"Comprehensive liver function panel including enzymes and proteins.","category":"liver","price":8,"costPrice":2.88,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Total Protein","Albumin","Bilirubin Total","Bilirubin Direct","Alkaline Phosphatase","AST","ALT"],"turnaroundDays":"1","sampleTypes":["serum"],"metaTitle":"Hepatic Function Panel - $8 | Liver Function Test | Justlabs","metaDescription":"Order a Hepatic Function Panel for $8. Comprehensive liver test measuring 7 biomarkers including ALT, AST, bilirubin, and albumin. Results in 1 day.","h1Title":"Hepatic Function Panel (Liver Test)","shortSummary":"A comprehensive 7-biomarker panel that evaluates liver health by measuring enzymes, proteins, and bilirubin levels.","longDescription":"The Hepatic Function Panel (also called Liver Function Tests or LFTs) provides a comprehensive assessment of your liver's health and function. The liver performs over 500 vital functions including filtering blood, producing bile, processing nutrients, and metabolizing medications.\n\nThis panel measures seven key biomarkers that together paint a complete picture of liver function. The enzymes ALT and AST indicate liver cell damage, while ALP can signal bile duct issues. Bilirubin levels show how well your liver processes waste, and albumin reflects your liver's protein-producing capability.\n\nRegular liver testing is important because liver disease often develops silently without symptoms until significant damage has occurred. Early detection through routine testing allows for intervention before irreversible damage occurs.","whatItMeasures":"This panel measures 7 biomarkers: ALT (alanine aminotransferase) and AST (aspartate aminotransferase) are liver enzymes released when cells are damaged. Alkaline Phosphatase (ALP) indicates bile duct function. Total and Direct Bilirubin measure waste processing. Total Protein and Albumin assess synthetic liver function.","whoIsItFor":"Anyone taking medications metabolized by the liver (statins, acetaminophen, etc.), people who consume alcohol regularly, those with risk factors for hepatitis, individuals with unexplained fatigue or digestive issues, and anyone wanting a baseline liver health assessment.","symptomsAddressed":["Fatigue or weakness","Jaundice (yellowing skin/eyes)","Dark urine","Pale stools","Abdominal pain or swelling","Nausea","Loss of appetite","Easy bruising","Itchy skin"],"conditionsScreened":["Fatty liver disease (NAFLD)","Hepatitis (A, B, C)","Alcoholic liver disease","Drug-induced liver injury","Cirrhosis","Bile duct obstruction","Liver cancer screening"],"whenToTest":"No fasting required. Can be tested any time of day. Avoid heavy alcohol consumption 24 hours before testing for most accurate results.","resultsOverview":"Normal ranges: ALT 7-56 U/L, AST 10-40 U/L, ALP 44-147 U/L, Total Bilirubin 0.1-1.2 mg/dL, Albumin 3.4-5.4 g/dL. Elevated liver enzymes may indicate inflammation or damage. Low albumin can suggest chronic liver disease. Results should be interpreted together for the complete picture.","faqs":[{"question":"What is the difference between a hepatic panel and a comprehensive metabolic panel?","answer":"A hepatic panel focuses specifically on liver function with 7 liver-related markers. A CMP includes liver tests plus kidney function, electrolytes, and blood sugar - a broader but less liver-focused panel."},{"question":"Can medications affect my liver test results?","answer":"Yes, many medications can affect liver enzymes, including statins, acetaminophen, antibiotics, and supplements. Tell your doctor about all medications you take when interpreting results."},{"question":"What causes elevated liver enzymes?","answer":"Common causes include fatty liver disease, alcohol use, viral hepatitis, medications, obesity, and diabetes. Mild elevations are common and often resolve on their own."},{"question":"How often should I test my liver function?","answer":"Annual testing is reasonable for most adults. More frequent testing (every 3-6 months) may be needed if you take medications that affect the liver or have known liver conditions."}],"relatedTests":["ggt","comprehensive-metabolic-panel","hepatitis-b-surface-ab","ferritin"],"name_es":"Panel de Función Hepática","biomarkers_es":["ALT","AST","Fosfatasa Alcalina","Bilirrubina Total","Bilirrubina Directa","Albúmina","Proteína Total"],"whenToTest_es":"Se puede requerir ayuno de 8-12 horas dependiendo del laboratorio. Evita el alcohol 24-48 horas antes para resultados precisos.","metaDescription_es":"Ordena un panel de función hepática completo por $8. Incluye ALT, AST, ALP, bilirrubina y albúmina. Detecta daño y enfermedad hepática. Resultados en 1-2 días.","h1Title_es":"Panel de Función Hepática","metaTitle_es":"Panel de Función Hepática - $8 | Pruebas de Hígado | Justlabs","shortName_es":"Hepático","symptomsAddressed_es":["Fatiga","Náuseas","Dolor abdominal","Orina oscura","Coloración amarilla de piel/ojos","Pérdida de apetito"],"whoIsItFor_es":"Cualquier persona que tome medicamentos que afecten el hígado, quienes consumen alcohol regularmente, personas con antecedentes familiares de enfermedad hepática, quienes tienen sobrepeso (riesgo de hígado graso), y cualquiera con fatiga inexplicable o molestia abdominal.","resultsOverview_es":"ALT/AST ligeramente elevadas pueden indicar hígado graso. Elevaciones más altas sugieren hepatitis u otro daño. La proporción AST/ALT puede ayudar a distinguir causas. ALP elevada con enzimas normales puede indicar problemas del conducto biliar.","longDescription_es":"El hígado realiza más de 500 funciones vitales. Este panel evalúa la salud hepática desde múltiples ángulos:\n\n• ALT y AST - Enzimas liberadas cuando las células hepáticas están dañadas\n• Fosfatasa Alcalina (ALP) - Elevada con problemas del conducto biliar\n• Bilirrubina - Producto de desecho que el hígado procesa (elevada = ictericia)\n• Albúmina y Proteína Total - Producidas por el hígado; niveles bajos indican disfunción\n\nEste panel puede detectar hepatitis, enfermedad del hígado graso, daño por alcohol y otras condiciones hepáticas.","conditionsScreened_es":["Enfermedad del hígado graso","Hepatitis","Daño hepático por alcohol","Cirrosis","Problemas del conducto biliar"],"description_es":"Evaluación completa de la salud del hígado que incluye enzimas, proteínas y bilirrubina.","shortSummary_es":"Este panel evalúa la salud del hígado a través de múltiples marcadores: enzimas hepáticas (ALT, AST, ALP), proteínas (albúmina, proteína total) y bilirrubina. Detecta daño hepático, enfermedad y función.","whatItMeasures_es":"Este panel mide 7 marcadores: ALT (SGPT), AST (SGOT), Fosfatasa Alcalina, Bilirrubina Total, Bilirrubina Directa, Albúmina y Proteína Total.","cptCode":"80076"},{"id":"renal-panel","questCode":"10314","name":"Renal Function Panel","shortName":"Kidney Panel","description":"Kidney function assessment including BUN, creatinine, and electrolytes.","category":"kidney","price":11,"costPrice":6.7,"fastingRequired":false,"labVendor":"Quest","biomarkers":["BUN","Creatinine","eGFR","BUN/Creatinine Ratio","Sodium","Potassium","Chloride","CO2","Calcium","Phosphorus","Albumin"],"turnaroundDays":"1","sampleTypes":["serum"],"metaTitle":"Renal Function Panel - $9 | Kidney Test | Justlabs","metaDescription":"Order a Renal Function Panel for $9. Comprehensive kidney test with 11 biomarkers including creatinine, BUN, eGFR, and electrolytes. Results in 1 day.","h1Title":"Renal Function Panel (Kidney Test)","shortSummary":"A comprehensive 11-biomarker panel that evaluates kidney health by measuring waste filtration, electrolyte balance, and mineral levels.","longDescription":"The Renal Function Panel provides a thorough assessment of your kidney health and function. Your kidneys filter about 200 quarts of blood daily, removing waste products and excess fluids while maintaining critical electrolyte and mineral balance.\n\nThis panel measures key markers of kidney filtration (creatinine, BUN, eGFR), electrolyte balance (sodium, potassium, chloride, CO2), and mineral status (calcium, phosphorus). Together, these markers reveal how efficiently your kidneys are working.\n\nKidney disease is often called a \"silent disease\" because it can progress without symptoms until significant damage occurs. Approximately 1 in 7 Americans has chronic kidney disease, and many don't know it. Regular kidney testing is especially important if you have diabetes, high blood pressure, or a family history of kidney disease.","whatItMeasures":"This panel measures 11 biomarkers: Creatinine and BUN assess waste filtration. eGFR (estimated Glomerular Filtration Rate) calculates overall kidney function. Electrolytes (sodium, potassium, chloride, CO2) show fluid and acid-base balance. Calcium, phosphorus, and albumin round out the mineral and protein assessment.","whoIsItFor":"People with diabetes or high blood pressure, those taking medications that affect kidneys (NSAIDs, certain blood pressure medications), individuals with family history of kidney disease, those with frequent urinary symptoms, and anyone wanting a baseline kidney health assessment.","symptomsAddressed":["Fatigue or weakness","Swelling in ankles/feet","Changes in urination","Foamy urine","Muscle cramps","Poor appetite","Nausea","Difficulty concentrating","Dry, itchy skin"],"conditionsScreened":["Chronic kidney disease","Acute kidney injury","Kidney stones","Electrolyte imbalances","Dehydration","Diabetes-related kidney damage","Hypertension-related kidney damage"],"whenToTest":"No fasting required. Can be tested any time of day. Stay normally hydrated before testing.","resultsOverview":"Normal ranges: Creatinine 0.7-1.3 mg/dL (men), 0.6-1.1 mg/dL (women). BUN 7-20 mg/dL. eGFR >90 mL/min is normal, 60-89 is mildly decreased, <60 may indicate chronic kidney disease. Electrolyte imbalances may indicate dehydration or kidney dysfunction.","faqs":[{"question":"What is eGFR and why is it important?","answer":"eGFR (estimated Glomerular Filtration Rate) is the best measure of overall kidney function. It estimates how much blood your kidneys filter per minute. Normal is >90, and <60 for 3+ months indicates chronic kidney disease."},{"answer":"Yes, dehydration can temporarily elevate BUN and creatinine levels. Drink normal amounts of water before testing, but don't overhydrate.","question":"Can dehydration affect my kidney test results?"},{"answer":"Annual testing is recommended for most adults. Those with diabetes, hypertension, or taking kidney-affecting medications should test every 6 months or as recommended by their doctor.","question":"How often should I test my kidney function?"},{"answer":"Elevated creatinine can indicate reduced kidney function, dehydration, certain medications, high protein diet, or intense exercise. A single elevated result should be confirmed with repeat testing.","question":"What causes elevated creatinine levels?"}],"relatedTests":["cystatin-c","comprehensive-metabolic-panel","urinalysis","uric-acid","vitamin-d"],"name_es":"Panel de Función Renal","biomarkers_es":["BUN","Creatinina","eGFR","Relación BUN/Creatinina","Sodio","Potasio","Cloruro","CO2","Calcio","Fósforo"],"description_es":"Evaluación integral de la función renal incluyendo tasa de filtración y equilibrio de electrolitos.","shortName_es":"Panel Renal","whenToTest_es":"No se requiere ayuno. Puede analizarse en cualquier momento del día. Manténgase normalmente hidratado antes de la prueba.","longDescription_es":"El Panel de Función Renal proporciona una evaluación completa de su salud y función renal. Sus riñones filtran aproximadamente 200 cuartos de sangre diariamente, eliminando productos de desecho y exceso de líquidos mientras mantienen el equilibrio crítico de electrolitos y minerales.\n\nEste panel mide marcadores clave de filtración renal (creatinina, BUN, eGFR), equilibrio electrolítico (sodio, potasio, cloruro, CO2) y estado mineral (calcio, fósforo). Juntos, estos marcadores revelan cuán eficientemente están funcionando sus riñones.","conditionsScreened_es":["Enfermedad renal crónica","Lesión renal aguda","Cálculos renales","Desequilibrios electrolíticos","Deshidratación","Daño renal relacionado con diabetes"],"shortSummary_es":"Un panel completo de 11 biomarcadores que evalúa la salud renal midiendo filtración de desechos, equilibrio electrolítico y niveles minerales.","whatItMeasures_es":"Este panel mide 11 biomarcadores: Creatinina y BUN evalúan la filtración de desechos. eGFR calcula la función renal general. Electrolitos (sodio, potasio, cloruro, CO2) muestran el equilibrio de líquidos y ácido-base. Calcio, fósforo y albúmina completan la evaluación de minerales y proteínas.","symptomsAddressed_es":["Fatiga o debilidad","Hinchazón en tobillos/pies","Cambios en la micción","Orina espumosa","Calambres musculares","Poco apetito","Náuseas"],"whoIsItFor_es":"Personas con diabetes o presión arterial alta, aquellos que toman medicamentos que afectan los riñones (AINEs, ciertos medicamentos para presión arterial), individuos con antecedentes familiares de enfermedad renal, aquellos con síntomas urinarios frecuentes, y cualquier persona que desee una evaluación basal de salud renal.","faqs_es":[{"question":"¿Qué es eGFR y por qué es importante?","answer":"eGFR es la mejor medida de la función renal general. Estima cuánta sangre filtran sus riñones por minuto. Normal es >90, y <60 por 3+ meses indica enfermedad renal crónica."},{"question":"¿La deshidratación puede afectar mis resultados?","answer":"Sí, la deshidratación puede elevar temporalmente los niveles de BUN y creatinina. Beba cantidades normales de agua antes de la prueba, pero no se sobrehidrate."},{"question":"¿Con qué frecuencia debo analizar mi función renal?","answer":"Se recomienda análisis anual para la mayoría de adultos. Aquellos con diabetes, hipertensión o que toman medicamentos que afectan los riñones deben analizar cada 6 meses."},{"question":"¿Qué causa niveles elevados de creatinina?","answer":"Creatinina elevada puede indicar función renal reducida, deshidratación, ciertos medicamentos, dieta alta en proteínas o ejercicio intenso."}],"cptCode":"80069"},{"id":"uric-acid","questCode":"905","name":"Uric Acid","shortName":"Uric Acid","description":"Measures uric acid levels. Elevated levels can indicate gout risk or kidney issues.","category":"metabolic","price":5,"costPrice":2.72,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Uric Acid"],"turnaroundDays":"1","sampleTypes":["serum"],"metaTitle":"Uric Acid Test - $5 | Gout & Kidney Screening | Justlabs","metaDescription":"Order a Uric Acid blood test for $5. Screen for gout risk, kidney function, and metabolic health. No fasting required. Results in 1 day.","h1Title":"Uric Acid Blood Test","shortSummary":"Uric acid is a waste product from purine breakdown. Elevated levels can cause gout (painful joint inflammation) and may indicate kidney problems or increased cardiovascular risk.","longDescription":"Uric acid is produced when the body breaks down purines—substances found in certain foods (red meat, organ meats, shellfish, beer) and naturally in body tissues. Normally, uric acid dissolves in blood, passes through the kidneys, and is excreted in urine.\n\nWhen uric acid levels get too high (hyperuricemia), it can:\n- Crystallize in joints, causing gout—an intensely painful form of arthritis\n- Form kidney stones\n- Indicate reduced kidney function (kidneys excrete uric acid)\n- Suggest increased cardiovascular and metabolic risk\n\nElevated uric acid is strongly associated with metabolic syndrome, insulin resistance, hypertension, and kidney disease. Some research links it to cardiovascular events independent of traditional risk factors.\n\nLow uric acid (hypouricemia) is less common but can occur with certain genetic conditions, liver disease, or medication effects.","whatItMeasures":"This test measures the concentration of uric acid in your blood, reported in mg/dL. Normal ranges: Men 3.4-7.0 mg/dL, Women 2.4-6.0 mg/dL. Gout risk increases significantly above 6.8-7.0 mg/dL, where uric acid crystals can form.","whoIsItFor":"People with joint pain (especially big toe), those with history of gout or kidney stones, individuals with kidney disease, people on diuretics or chemotherapy, those with metabolic syndrome or diabetes, and anyone with a diet high in purines or alcohol.","symptomsAddressed":["Joint pain (especially big toe)","Swollen, red, hot joints","Recurrent kidney stones","Kidney disease monitoring","Metabolic syndrome evaluation","Chemotherapy monitoring"],"conditionsScreened":["Gout","Hyperuricemia","Kidney stone risk","Chronic kidney disease","Metabolic syndrome","Tumor lysis syndrome (during cancer treatment)","Cardiovascular risk assessment"],"whenToTest":"No fasting required, though some providers prefer fasting for consistency. Avoid alcohol for 24 hours before testing. During an acute gout attack, uric acid may paradoxically be normal; test 2 weeks after the attack resolves for accurate baseline.","resultsOverview":"Levels above 6.8-7.0 mg/dL significantly increase gout risk. Men: >7.0 mg/dL is elevated. Women: >6.0 mg/dL is elevated. Very high levels (>9-10 mg/dL) warrant evaluation for underlying causes. Target for gout patients is typically <6.0 mg/dL to prevent crystal formation.","faqs":[{"question":"What causes high uric acid?","answer":"Common causes include diet high in purines (red meat, shellfish, organ meats, beer), obesity, kidney disease, certain medications (diuretics, aspirin), genetics, and conditions causing rapid cell turnover (cancer, psoriasis). Fructose and alcohol also raise uric acid."},{"question":"Can I have gout with normal uric acid?","answer":"Yes, during an acute gout attack, uric acid levels can be normal or even low because the uric acid has moved into the joint. Wait 2 weeks after an attack resolves for accurate testing. Also, some people with high uric acid never develop gout."},{"question":"How do I lower uric acid?","answer":"Lifestyle changes help: limit purine-rich foods, reduce alcohol (especially beer), lose weight, stay hydrated, and avoid sugary drinks with fructose. If lifestyle isn't enough, medications like allopurinol or febuxostat can lower uric acid."},{"question":"Is uric acid related to heart disease?","answer":"Research suggests elevated uric acid is associated with hypertension, metabolic syndrome, and cardiovascular disease. Whether it's a direct cause or just a marker is still debated, but it's another piece of your metabolic health picture."}],"relatedTests":["bmp","cmp","renal-function-panel","lipid-panel"],"name_es":"Ácido Úrico","biomarkers_es":["Ácido Úrico"],"whenToTest_es":"Se prefiere ayuno para resultados más precisos. Evita el alcohol 24 horas antes. Evita el ejercicio vigoroso antes de la prueba.","metaDescription_es":"Ordena una prueba de ácido úrico por $6. Detecta niveles altos que causan gota y cálculos renales. También vinculado a enfermedad cardíaca. Resultados en 1-2 días.","h1Title_es":"Análisis de Sangre de Ácido Úrico","metaTitle_es":"Prueba de Ácido Úrico - $6 | Gota y Cálculos Renales | Justlabs","shortName_es":"Ác. Úrico","symptomsAddressed_es":["Dolor articular","Hinchazón articular","Dolor en el dedo gordo del pie","Cálculos renales","Antecedentes familiares de gota"],"whoIsItFor_es":"Cualquier persona con antecedentes de gota o cálculos renales, quienes tienen dolor articular (especialmente en el dedo gordo del pie), personas con síndrome metabólico, quienes toman diuréticos, y cualquiera con antecedentes familiares de gota.","resultsOverview_es":"Normal: Hombres <7.0 mg/dL, Mujeres <6.0 mg/dL. Niveles más altos aumentan el riesgo de gota y cálculos renales. Cambios dietéticos (reducir alcohol, carnes rojas, mariscos) pueden ayudar a reducir el ácido úrico.","longDescription_es":"El ácido úrico se produce cuando tu cuerpo descompone purinas (encontradas en ciertos alimentos y producidas por tu cuerpo). Normalmente se disuelve en la sangre, pasa por los riñones y sale en la orina.\n\nEl ácido úrico alto puede causar:\n• Gota (cristales dolorosos en las articulaciones)\n• Cálculos renales\n• Está asociado con enfermedad cardíaca\n• Vinculado al síndrome metabólico y la diabetes\n\nAlgunas personas producen demasiado ácido úrico; otras no lo excretan eficientemente.","conditionsScreened_es":["Gota","Hiperuricemia","Cálculos renales","Síndrome metabólico"],"description_es":"Mide el ácido úrico, relacionado con gota, cálculos renales y riesgo cardiovascular.","shortSummary_es":"El ácido úrico es un producto de desecho del metabolismo de purinas. Niveles altos pueden causar gota y cálculos renales, y están asociados con enfermedad cardíaca y síndrome metabólico.","whatItMeasures_es":"Esta prueba mide el ácido úrico sérico en mg/dL. Hombres: normal 3.4-7.0 mg/dL. Mujeres: normal 2.4-6.0 mg/dL. Niveles >7 mg/dL aumentan el riesgo de gota.","cptCode":"84550"},{"id":"ggt","questCode":"482","name":"GGT (Gamma-Glutamyl Transferase)","shortName":"GGT","description":"Liver enzyme that can indicate liver disease or bile duct problems. Also elevated with alcohol use.","category":"liver","price":5,"costPrice":2.13,"fastingRequired":false,"labVendor":"Quest","biomarkers":["GGT"],"turnaroundDays":"1","sampleTypes":["serum"],"metaTitle":"GGT Test - $6 | Liver Enzyme & Alcohol Marker | Justlabs","metaDescription":"Order a GGT (Gamma-Glutamyl Transferase) test for $6. Detects liver disease, bile duct problems, and alcohol use. No fasting. Results in 1 day.","h1Title":"GGT (Gamma-Glutamyl Transferase) Blood Test","shortSummary":"GGT is a liver enzyme that's particularly sensitive to alcohol use and bile duct problems. It's often elevated before other liver enzymes and can help determine the cause of elevated ALP (alkaline phosphatase).","longDescription":"Gamma-Glutamyl Transferase (GGT) is an enzyme found mainly in the liver, with smaller amounts in the kidneys, pancreas, and intestines. GGT helps transport amino acids across cell membranes and plays a role in glutathione metabolism - your body's master antioxidant.\n\nWhat makes GGT unique among liver enzymes:\n- It's extremely sensitive to alcohol consumption - even moderate drinking can elevate GGT\n- It rises in bile duct obstruction and can help distinguish liver vs bone causes of elevated ALP\n- It can be elevated before other liver enzymes become abnormal\n- It's a marker of oxidative stress and has been linked to cardiovascular disease risk\n\nGGT is often included in liver panels or ordered as a follow-up to abnormal liver function tests, particularly when elevated ALP needs clarification or alcohol use is suspected.","whatItMeasures":"This test measures the level of GGT enzyme in your blood, reported in U/L. Normal GGT is typically 9-48 U/L for adults, though men tend to have higher levels than women. Values can increase with age and body mass.","whoIsItFor":"People with elevated ALP needing clarification (liver vs bone source), those with suspected alcohol-related liver problems, patients with bile duct symptoms, anyone with other abnormal liver enzymes, and people monitoring liver health with medication use.","symptomsAddressed":["Right upper abdominal pain","Jaundice (yellowing of skin/eyes)","Dark urine","Pale stools","Fatigue","Nausea","Itchy skin","Unexplained weight loss"],"conditionsScreened":["Alcohol-related liver disease","Bile duct obstruction","Cholestatic liver disease","Fatty liver disease","Hepatitis","Liver cirrhosis","Medication-induced liver injury","Pancreatic disease"],"whenToTest":"No fasting required. For the most accurate results, avoid alcohol for at least 24 hours before testing. GGT is best interpreted alongside other liver enzymes like AST, ALT, and ALP.","resultsOverview":"Normal GGT is typically 9-48 U/L. Mild elevations (2-3x normal) can occur with moderate alcohol use, medications, or fatty liver. Moderate elevations (3-10x) suggest liver disease or bile duct problems. Very high elevations (>10x) often indicate bile duct obstruction or severe liver disease.","faqs":[{"question":"Why is GGT especially sensitive to alcohol?","answer":"Alcohol induces GGT enzyme production in the liver. Even moderate alcohol consumption (1-2 drinks daily) can elevate GGT. It typically normalizes within 2-6 weeks of abstinence, making it useful for monitoring sobriety."},{"question":"What does it mean if GGT is elevated but other liver tests are normal?","answer":"Isolated GGT elevation commonly results from alcohol consumption, certain medications (especially anti-seizure drugs), obesity, or metabolic syndrome. It doesn't always indicate liver disease but warrants evaluation of lifestyle factors."},{"question":"How does GGT help with elevated ALP?","answer":"ALP can be elevated from liver or bone sources. If both GGT and ALP are elevated, the source is likely hepatobiliary (liver/bile ducts). If ALP is high but GGT is normal, the source is probably bone (growing children, Paget's disease, bone metastases)."},{"question":"Can medications affect GGT levels?","answer":"Yes, many medications can elevate GGT including phenytoin, carbamazepine, barbiturates, acetaminophen, NSAIDs, and some antibiotics. Always inform your healthcare provider about all medications when interpreting GGT results."}],"relatedTests":["alt","ast","alp","bilirubin","cmp-14"],"name_es":"GGT (Gamma-Glutamil Transferasa)","biomarkers_es":["GGT"],"description_es":"Enzima hepática sensible a daño hepático, especialmente relacionado con alcohol y enfermedades biliares.","shortName_es":"GGT","whenToTest_es":"No se requiere ayuno. Para resultados más precisos, evite el alcohol por al menos 24 horas antes de la prueba. GGT se interpreta mejor junto con otras enzimas hepáticas como AST, ALT y ALP.","longDescription_es":"La Gamma-Glutamil Transferasa (GGT) es una enzima encontrada principalmente en el hígado, con cantidades menores en riñones, páncreas e intestinos. GGT ayuda a transportar aminoácidos a través de membranas celulares y juega un rol en el metabolismo del glutatión.\n\nLo que hace a GGT único entre las enzimas hepáticas:\n- Es extremadamente sensible al consumo de alcohol - incluso beber moderado puede elevar GGT\n- Aumenta en obstrucción de conductos biliares y puede ayudar a distinguir causas hepáticas vs óseas de ALP elevada\n- Puede elevarse antes que otras enzimas hepáticas se vuelvan anormales","conditionsScreened_es":["Enfermedad hepática relacionada con alcohol","Obstrucción de conductos biliares","Enfermedad hepática colestásica","Hígado graso","Hepatitis","Cirrosis hepática"],"shortSummary_es":"GGT es una enzima hepática particularmente sensible al uso de alcohol y problemas de conductos biliares. A menudo se eleva antes que otras enzimas hepáticas y puede ayudar a determinar la causa de ALP elevada.","whatItMeasures_es":"Esta prueba mide el nivel de enzima GGT en su sangre, reportado en U/L. GGT normal es típicamente 9-48 U/L para adultos, aunque los hombres tienden a tener niveles más altos que las mujeres. Los valores pueden aumentar con la edad y masa corporal.","symptomsAddressed_es":["Dolor abdominal superior derecho","Ictericia (coloración amarilla de piel/ojos)","Orina oscura","Heces pálidas","Fatiga","Náuseas","Piel con picazón"],"whoIsItFor_es":"Personas con ALP elevada que necesitan aclaración (fuente hepática vs ósea), aquellos con sospecha de problemas hepáticos relacionados con alcohol, pacientes con síntomas de conductos biliares, cualquier persona con otras enzimas hepáticas anormales, y personas que monitorean la salud hepática con uso de medicamentos.","faqs_es":[{"question":"¿Por qué GGT es especialmente sensible al alcohol?","answer":"El alcohol induce la producción de enzima GGT en el hígado. Incluso el consumo moderado de alcohol puede elevar GGT. Típicamente se normaliza dentro de 2-6 semanas de abstinencia."},{"question":"¿Qué significa si GGT está elevada pero otras pruebas hepáticas son normales?","answer":"La elevación aislada de GGT comúnmente resulta del consumo de alcohol, ciertos medicamentos, obesidad o síndrome metabólico. No siempre indica enfermedad hepática pero justifica evaluación de factores del estilo de vida."},{"question":"¿Cómo ayuda GGT con ALP elevada?","answer":"ALP puede estar elevada por fuentes hepáticas u óseas. Si tanto GGT como ALP están elevadas, la fuente es probablemente hepatobiliar. Si ALP está alta pero GGT es normal, la fuente es probablemente ósea."},{"question":"¿Los medicamentos pueden afectar los niveles de GGT?","answer":"Sí, muchos medicamentos pueden elevar GGT incluyendo fenitoína, carbamazepina, barbitúricos, acetaminofén, AINEs y algunos antibióticos."}],"cptCode":"82977"},{"id":"ana-titer-pattern","questCode":"249","name":"ANA Screen with Reflex to Titer and Pattern","shortName":"ANA","description":"ANA screen by IFA method with automatic reflex to titer and pattern if positive. The standard autoimmune screening test.","category":"autoimmune","price":11,"costPrice":7,"fastingRequired":false,"labVendor":"Quest","biomarkers":["ANA","ANA Titer","ANA Pattern"],"turnaroundDays":"3-5","sampleTypes":["serum"],"metaTitle":"ANA Test with Reflex to Titer - $15 | Justlabs","metaDescription":"Order an ANA screen with automatic reflex to titer and pattern for $15. If the screen is positive, you automatically get detailed results. No doctor visit needed.","h1Title":"ANA Screen with Reflex to Titer and Pattern","shortSummary":"The gold standard ANA test — screens for antinuclear antibodies and automatically provides titer level and staining pattern if positive, giving you the most complete picture in one order.","longDescription":"This test uses immunofluorescence assay (IFA) on human epithelial cells — the gold standard method recommended by the American College of Rheumatology for ANA testing. It combines screening and detailed analysis in one smart test. \n\nStep 1: ANA Screen — detects antinuclear antibodies in your blood | \n\nStep 2 (automatic if positive): Titer — measures antibody concentration (1:40, 1:80, 1:160, etc.) \n\nStep 3 (automatic if positive): Pattern — identifies which cellular structures are targeted\n\nThis reflex approach means you only pay for detailed analysis when it's clinically relevant. If the screen is negative, you're done. If positive, you automatically get the titer and pattern that help differentiate between lupus, Sjogren's, scleroderma, and other autoimmune conditions.","whatItMeasures":"This test screens for antinuclear antibodies (ANA). If positive, it automatically measures: (1) ANA Titer — the highest dilution at which antibodies are detectable (higher numbers = more antibodies), and (2) Staining Pattern — how antibodies distribute across cell nuclei (homogeneous, speckled, nucleolar, or centromere), which helps identify specific autoimmune conditions.","whoIsItFor":"Anyone with symptoms suggesting autoimmune disease: unexplained joint pain, fatigue, rashes, or organ dysfunction. Also for those with family history of autoimmune conditions. This single test replaces the need to order a basic ANA screen and then follow up with titer/pattern separately.","symptomsAddressed":["Joint pain and swelling","Unexplained fatigue","Butterfly rash","Raynaud's phenomenon","Dry eyes and mouth","Muscle weakness","Hair loss","Skin thickening","Photosensitivity"],"conditionsScreened":["Systemic lupus erythematosus (SLE)","Sjogren's syndrome","Rheumatoid arthritis","Scleroderma","CREST syndrome","Mixed connective tissue disease","Polymyositis","Dermatomyositis","Drug-induced lupus"],"whenToTest":"No fasting required. Test when experiencing unexplained symptoms that might indicate autoimmune disease, or as part of evaluation for known autoimmune conditions.","resultsOverview":"Negative screen: autoimmune disease is less likely (but not ruled out). Positive screen with titer: 1:160 or higher is generally clinically significant; 1:40-1:80 can occur in healthy people. Pattern interpretation: Homogeneous suggests lupus; Speckled suggests Sjogren's or lupus; Nucleolar suggests scleroderma; Centromere indicates CREST syndrome.","faqs":[{"question":"Does a positive ANA mean I have lupus?","answer":"Not necessarily. A positive ANA is found in 95%+ of lupus patients, but also in many other conditions and 15-20% of healthy people. The titer level and pattern help narrow down the possibilities, but additional testing is needed for a specific diagnosis."},{"question":"What does \"reflex\" mean?","answer":"Reflex means the lab automatically runs additional testing when the initial screen is positive. You order one test — if the ANA screen is negative, you're done. If positive, the lab automatically determines the titer and pattern without you needing to order a separate test."},{"question":"What do the different patterns mean?","answer":"Homogeneous: often lupus or drug-induced lupus. Speckled: various conditions including Sjogren's and lupus. Nucleolar: suggests scleroderma. Centromere: indicates limited scleroderma (CREST). Patterns help guide which specific antibody tests to order next."},{"question":"Can medications cause a positive ANA?","answer":"Yes, certain medications including hydralazine, procainamide, and isoniazid can cause drug-induced lupus with positive ANA. This typically resolves when the medication is stopped."}],"relatedTests":["rheumatoid-factor","hs-crp","sed-rate"],"createdBy":"script","biomarkers_es":["ANA","Título de ANA","Patrón de ANA"],"createdAt":{"_nanoseconds":326000000,"_seconds":1769634722},"name_es":"ANA con Reflejo a Título y Patrón","whenToTest_es":"No se requiere ayuno. Analiza cuando experimentes síntomas inexplicables que podrían indicar enfermedad autoinmune, o como parte de la evaluación de condiciones autoinmunes conocidas.","metaDescription_es":"Ordena un tamizaje de ANA con reflejo automático a título y patrón por $15. Si el tamizaje es positivo, obtienes resultados detallados automáticamente. Sin cita médica.","h1Title_es":"ANA con Reflejo a Título y Patrón","metaTitle_es":"Prueba de ANA con Reflejo a Título - $15 | Justlabs","shortName_es":"ANA","symptomsAddressed_es":["Dolor e hinchazón articular","Fatiga inexplicable","Erupción en mariposa","Fenómeno de Raynaud","Ojos y boca secos","Debilidad muscular","Caída del cabello","Engrosamiento de la piel","Fotosensibilidad"],"whoIsItFor_es":"Cualquier persona con síntomas que sugieran enfermedad autoinmune: dolor articular inexplicable, fatiga, erupciones o disfunción orgánica. También para quienes tienen antecedentes familiares de condiciones autoinmunes. Esta sola prueba reemplaza la necesidad de ordenar un tamizaje básico de ANA y luego dar seguimiento con título/patrón por separado.","resultsOverview_es":"Tamizaje negativo: enfermedad autoinmune es menos probable (pero no descartada). Tamizaje positivo con título: 1:160 o mayor es generalmente clínicamente significativo; 1:40-1:80 puede ocurrir en personas sanas. Interpretación del patrón: Homogéneo sugiere lupus; Moteado sugiere Sjögren o lupus; Nucleolar sugiere esclerodermia; Centrómero indica síndrome CREST.","longDescription_es":"Esta prueba usa ensayo de inmunofluorescencia (IFA) en células epiteliales humanas — el método estándar recomendado por el Colegio Americano de Reumatología para pruebas de ANA. Combina tamizaje y análisis detallado en una sola prueba inteligente:\n\n• Paso 1: Tamizaje de ANA — detecta anticuerpos antinucleares en tu sangre\n• Paso 2 (automático si es positivo): Título — mide la concentración de anticuerpos (1:40, 1:80, 1:160, etc.)\n• Paso 3 (automático si es positivo): Patrón — identifica qué estructuras celulares son el objetivo\n\nEste enfoque de reflejo significa que solo pagas por el análisis detallado cuando es clínicamente relevante. Si el tamizaje es negativo, ya terminaste. Si es positivo, automáticamente obtienes el título y patrón que ayudan a diferenciar entre lupus, Sjögren, esclerodermia y otras condiciones autoinmunes.","conditionsScreened_es":["Lupus eritematoso sistémico (LES)","Síndrome de Sjögren","Artritis reumatoide","Esclerodermia","Síndrome CREST","Enfermedad mixta del tejido conectivo","Polimiositis","Dermatomiositis","Lupus inducido por medicamentos"],"description_es":"Tamizaje de ANA por método IFA con reflejo automático a título y patrón si es positivo. La prueba estándar de tamizaje autoinmune.","shortSummary_es":"La prueba de ANA estándar — tamiza anticuerpos antinucleares y automáticamente proporciona nivel de título y patrón de tinción si es positivo, dándote el panorama más completo en una sola orden.","whatItMeasures_es":"Esta prueba tamiza anticuerpos antinucleares (ANA). Si es positivo, automáticamente mide: (1) Título de ANA — la dilución más alta a la que se detectan anticuerpos (números más altos = más anticuerpos), y (2) Patrón de Tinción — cómo se distribuyen los anticuerpos en los núcleos celulares (homogéneo, moteado, nucleolar o centrómero), lo que ayuda a identificar condiciones autoinmunes específicas.","faqs_es":[{"question":"¿Un ANA positivo significa que tengo lupus?","answer":"No necesariamente. Un ANA positivo se encuentra en más del 95% de pacientes con lupus, pero también en muchas otras condiciones y en 15-20% de personas sanas. El nivel de título y patrón ayudan a reducir las posibilidades, pero se necesitan pruebas adicionales para un diagnóstico específico."},{"question":"¿Qué significa \"reflejo\"?","answer":"Reflejo significa que el laboratorio automáticamente realiza pruebas adicionales cuando el tamizaje inicial es positivo. Ordenas una sola prueba — si el tamizaje de ANA es negativo, ya terminaste. Si es positivo, el laboratorio automáticamente determina el título y patrón sin que necesites ordenar una prueba separada."},{"question":"¿Qué significan los diferentes patrones?","answer":"Homogéneo: frecuentemente lupus o lupus inducido por medicamentos. Moteado: varias condiciones incluyendo Sjögren y lupus. Nucleolar: sugiere esclerodermia. Centrómero: indica esclerodermia limitada (CREST). Los patrones ayudan a guiar qué pruebas de anticuerpos específicos ordenar después."},{"question":"¿Pueden los medicamentos causar un ANA positivo?","answer":"Sí, ciertos medicamentos incluyendo hidralazina, procainamida e isoniazida pueden causar lupus inducido por medicamentos con ANA positivo. Esto típicamente se resuelve cuando se suspende el medicamento."}]},{"id":"rheumatoid-factor","questCode":"4418","name":"Rheumatoid Factor","shortName":"RF","description":"Antibody often elevated in rheumatoid arthritis and other autoimmune conditions.","category":"autoimmune","price":8,"costPrice":4.55,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Rheumatoid Factor"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Rheumatoid Factor Test - $9 | RA Antibody Screening | Justlabs","metaDescription":"Order a Rheumatoid Factor (RF) blood test for $9. Screen for rheumatoid arthritis and autoimmune conditions. No fasting required. Results in 2-3 days.","h1Title":"Rheumatoid Factor (RF) Blood Test","shortSummary":"Rheumatoid Factor is an autoantibody commonly elevated in rheumatoid arthritis. This test helps diagnose RA and assess disease severity, though RF can also be elevated in other conditions.","longDescription":"Rheumatoid Factor (RF) is an autoantibody—an antibody that mistakenly attacks your own body's tissues. In rheumatoid arthritis (RA), RF targets the Fc portion of IgG antibodies, forming immune complexes that contribute to joint inflammation and damage.\n\nRF testing is one of the key blood tests used to help diagnose rheumatoid arthritis, typically alongside anti-CCP antibodies, inflammatory markers (ESR, CRP), and clinical examination. About 70-80% of people with RA test positive for RF.\n\nHowever, RF is not specific to rheumatoid arthritis. It can be elevated in other autoimmune diseases (Sjogren's syndrome, lupus), chronic infections, and even in some healthy individuals, especially older adults. A positive RF alone doesn't diagnose RA—clinical symptoms and additional testing are essential.","whatItMeasures":"This test measures the concentration of rheumatoid factor antibodies in your blood, typically reported in IU/mL. Results are often categorized as negative (<14 IU/mL), low positive (14-39 IU/mL), moderate positive (40-59 IU/mL), or high positive (≥60 IU/mL). Higher levels often correlate with more severe disease.","whoIsItFor":"People with joint pain, swelling, or stiffness (especially in hands and feet), those with morning stiffness lasting over an hour, individuals with symmetric joint involvement, anyone with suspected autoimmune disease, and those with a family history of rheumatoid arthritis.","symptomsAddressed":["Joint pain and swelling","Morning stiffness (>30-60 minutes)","Symmetric joint involvement","Fatigue","Low-grade fever","Joint deformity","Nodules under the skin","Dry eyes or mouth"],"conditionsScreened":["Rheumatoid arthritis","Sjogren's syndrome","Systemic lupus erythematosus","Mixed connective tissue disease","Chronic hepatitis","Chronic infections","Cryoglobulinemia"],"whenToTest":"No fasting required. RF can be tested at any time. For RA diagnosis, RF is best interpreted alongside anti-CCP antibodies, ESR, and CRP, plus clinical examination by a rheumatologist.","resultsOverview":"Negative RF (<14 IU/mL) makes RA less likely but doesn't rule it out—20-30% of RA patients are \"seronegative.\" Positive RF suggests RA is possible, but confirmatory testing and clinical evaluation are needed. Higher RF levels often correlate with more aggressive disease, joint damage risk, and extra-articular manifestations.","faqs":[{"question":"Can you have rheumatoid arthritis with negative RF?","answer":"Yes, about 20-30% of people with RA are \"seronegative\"—they have the disease but negative RF. These patients often test positive for anti-CCP antibodies instead. Diagnosis relies on clinical symptoms, imaging, and the full picture, not RF alone."},{"question":"What causes false positive RF?","answer":"RF can be positive in healthy older adults (10-25% of those over 65), chronic infections (hepatitis C, tuberculosis), other autoimmune diseases (Sjogren's, lupus), and some cancers. A positive RF without joint symptoms requires clinical correlation."},{"question":"Is anti-CCP better than RF for diagnosing RA?","answer":"Anti-CCP is more specific for RA (90-95% specific vs. 80-85% for RF), meaning fewer false positives. However, combining both tests provides the best diagnostic accuracy. Being positive for both RF and anti-CCP strongly suggests RA."},{"question":"Do RF levels change with treatment?","answer":"RF levels can decrease with effective RA treatment, but the response is variable. RF is not typically used to monitor disease activity—inflammatory markers like CRP and ESR, plus clinical assessment, are better for tracking treatment response."}],"relatedTests":["anti-ccp","ana-titer-pattern","sed-rate","hs-crp","cbc-diff"],"name_es":"Factor Reumatoide","biomarkers_es":["Factor Reumatoide"],"description_es":"Anticuerpo asociado con artritis reumatoide y otras condiciones autoinmunes.","shortName_es":"FR","whenToTest_es":"No se requiere ayuno. Puede analizarse en cualquier momento del día. A menudo se ordena junto con anti-CCP para evaluación de artritis reumatoide.","longDescription_es":"El Factor Reumatoide (FR) es un autoanticuerpo que ataca los propios tejidos del cuerpo. Está presente en aproximadamente 70-80% de personas con artritis reumatoide, pero también puede encontrarse en otras condiciones autoinmunes y ocasionalmente en personas sanas.\n\nFR positivo apoya el diagnóstico de AR pero no es definitivo por sí solo. Algunas personas con AR tienen FR negativo (AR seronegativa), mientras que FR puede estar elevado en Sjögren, lupus, infecciones crónicas e incluso en algunos adultos mayores sanos.","conditionsScreened_es":["Artritis reumatoide","Síndrome de Sjögren","Lupus eritematoso sistémico","Crioglobulinemia","Infecciones crónicas"],"shortSummary_es":"El Factor Reumatoide es un anticuerpo encontrado en la mayoría de personas con artritis reumatoide, aunque también puede estar presente en otras condiciones autoinmunes.","whatItMeasures_es":"Esta prueba mide el nivel de Factor Reumatoide (FR) en su sangre, reportado en UI/mL. Valores por debajo de 14 UI/mL generalmente se consideran negativos. Niveles más altos pueden indicar artritis reumatoide u otras condiciones autoinmunes.","symptomsAddressed_es":["Dolor e hinchazón articular","Rigidez matutina","Fatiga","Nódulos bajo la piel","Articulaciones calientes"],"whoIsItFor_es":"Personas con dolor e hinchazón articular, aquellos con sospecha de artritis reumatoide, individuos con rigidez matutina en las articulaciones, personas con antecedentes familiares de AR, y aquellos que monitorean artritis reumatoide conocida.","faqs_es":[{"question":"¿FR positivo significa que tengo artritis reumatoide?","answer":"No necesariamente. Aunque FR está presente en 70-80% de pacientes con AR, también se encuentra en otras condiciones y 5-10% de personas sanas. El diagnóstico de AR requiere síntomas clínicos y a menudo pruebas adicionales como anti-CCP."},{"question":"¿Cuál es la diferencia entre FR y anti-CCP?","answer":"Ambos son marcadores de AR pero anti-CCP es más específico. FR puede estar elevado en muchas condiciones, mientras que anti-CCP es más específico para AR. Analizar ambos proporciona mejor precisión diagnóstica."},{"question":"¿Puede FR predecir la gravedad de la enfermedad?","answer":"Niveles más altos de FR a menudo se correlacionan con enfermedad más agresiva, mayor daño articular y más manifestaciones extra-articulares. Sin embargo, la respuesta individual varía."}],"cptCode":"86431"},{"id":"celiac-panel","questCode":"15681","name":"Celiac Disease Panel","shortName":"Celiac Panel","description":"Comprehensive panel to screen for celiac disease including tissue transglutaminase and other markers.","category":"autoimmune","price":85,"costPrice":75.21,"fastingRequired":false,"labVendor":"Quest","biomarkers":["tTG IgA","tTG IgG","IgA Total","DGP IgA","DGP IgG"],"turnaroundDays":"3-5","sampleTypes":["serum"],"metaTitle":"Celiac Disease Panel - $85 | Comprehensive Gluten Testing | Justlabs","metaDescription":"Order a comprehensive Celiac Disease Panel for $85. Includes tTG IgA/IgG, DGP antibodies, and total IgA. No fasting required. Results in 3-5 days.","h1Title":"Celiac Disease Panel","shortSummary":"This comprehensive panel screens for celiac disease using multiple antibody markers, providing thorough coverage for both standard and IgA-deficient patients.","longDescription":"Celiac disease is an autoimmune disorder where gluten consumption damages the small intestine. This comprehensive panel includes the most reliable blood markers for screening: tissue transglutaminase antibodies (tTG IgA and tTG IgG), deamidated gliadin peptide antibodies (DGP IgA and DGP IgG), and total IgA. The inclusion of both IgA and IgG versions is important because about 2-3% of celiac patients have IgA deficiency, which would cause false negative results on IgA-only tests. This panel catches both standard cases and those with IgA deficiency, making it the most comprehensive screening approach available.","whatItMeasures":"This panel measures five markers: tTG IgA and tTG IgG (antibodies against tissue transglutaminase, the primary celiac marker), DGP IgA and DGP IgG (antibodies against deamidated gliadin, a wheat protein component), and Total IgA (to identify IgA deficiency that could affect results).","whoIsItFor":"People with gastrointestinal symptoms (bloating, diarrhea, abdominal pain), those with unexplained weight loss or nutritional deficiencies, individuals with a family history of celiac disease, people with other autoimmune conditions (Type 1 diabetes, thyroid disease), those with dermatitis herpetiformis, and anyone considering a gluten-free diet who wants testing first.","symptomsAddressed":["Chronic diarrhea or constipation","Bloating and abdominal pain","Unexplained weight loss","Fatigue","Iron deficiency anemia","Bone or joint pain","Skin rash (dermatitis herpetiformis)","Mouth ulcers"],"conditionsScreened":["Celiac disease","Gluten sensitivity evaluation","IgA deficiency","Autoimmune enteropathy","Dermatitis herpetiformis"],"whenToTest":"No fasting is required. IMPORTANT: You must be consuming gluten regularly for at least 2-4 weeks before testing. Starting a gluten-free diet before testing will cause false negative results. If you have already gone gluten-free, consult with your healthcare provider about a gluten challenge.","resultsOverview":"Positive tTG IgA is the strongest indicator of celiac disease, with positive results typically followed by intestinal biopsy for confirmation. Positive DGP antibodies support the diagnosis. If Total IgA is low or absent, rely on IgG results instead. Negative results make celiac disease unlikely but cannot completely rule it out, especially if gluten intake was limited before testing.","faqs":[{"question":"Why include both IgA and IgG tests?","answer":"About 2-3% of people with celiac disease have selective IgA deficiency, which would make IgA-based tests falsely negative. By including IgG versions (tTG IgG, DGP IgG) and measuring Total IgA, this panel can accurately screen patients regardless of their IgA status, avoiding missed diagnoses."},{"question":"Do I need to eat gluten before testing?","answer":"Yes, this is critical. You must be eating gluten-containing foods (bread, pasta, cereals) daily for at least 2-4 weeks before testing. If you are already gluten-free, antibody levels may have normalized, leading to false negative results. Your healthcare provider can advise on a gluten challenge if needed."},{"question":"What happens if my test is positive?","answer":"A positive celiac panel is highly suggestive but not definitive. Most gastroenterologists recommend an intestinal biopsy to confirm the diagnosis before starting lifelong gluten-free diet. Some doctors may diagnose celiac without biopsy if antibody levels are very high (>10x normal) and symptoms are classic."},{"question":"Can I have celiac disease with a negative test?","answer":"While rare, false negatives can occur if you were not eating gluten regularly before testing, have very early disease, or have IgA deficiency with only IgA markers tested (this panel includes IgG to prevent this). If clinical suspicion remains high despite negative results, genetic testing (HLA-DQ2/DQ8) or biopsy may be recommended."}],"relatedTests":["ttg-igg-iga","ana-titer-pattern","vitamin-d","iron-panel"],"createdBy":"script","name_es":"Panel de Enfermedad Celíaca","biomarkers_es":["tTG IgA","tTG IgG","IgA Total","DGP IgA","DGP IgG"],"description_es":"Panel integral de anticuerpos para detectar enfermedad celíaca y sensibilidad al gluten.","shortName_es":"Panel Celíaco","whenToTest_es":"Debe estar consumiendo gluten regularmente (al menos 2 rebanadas de pan diarias por 6-8 semanas) antes de la prueba para resultados precisos. Una dieta sin gluten puede causar resultados falsos negativos.","longDescription_es":"La enfermedad celíaca es una condición autoinmune donde la ingesta de gluten desencadena daño al intestino delgado. Este panel mide anticuerpos que el cuerpo produce en respuesta al gluten en individuos afectados.\n\nEl tTG-IgA es el marcador más sensible y específico para enfermedad celíaca. Sin embargo, aproximadamente 2-3% de personas tienen deficiencia de IgA, lo que puede causar resultados falsos negativos. Por eso el panel también mide IgA total.","conditionsScreened_es":["Enfermedad celíaca","Dermatitis herpetiforme","Sensibilidad al gluten no celíaca"],"shortSummary_es":"Detecta anticuerpos que indican enfermedad celíaca, una reacción autoinmune al gluten que daña el intestino delgado.","whatItMeasures_es":"Este panel mide anticuerpos asociados con enfermedad celíaca: Anticuerpos Transglutaminasa Tisular IgA (tTG-IgA) - el marcador más sensible, e IgA Total - para asegurar que los niveles de IgA sean adecuados para una prueba precisa.","symptomsAddressed_es":["Diarrea crónica","Hinchazón abdominal","Pérdida de peso inexplicable","Anemia","Fatiga","Dolor abdominal","Deficiencias nutricionales"],"whoIsItFor_es":"Personas con síntomas digestivos crónicos, aquellos con antecedentes familiares de enfermedad celíaca, individuos con anemia inexplicable o deficiencias nutricionales, personas con condiciones autoinmunes, y cualquier persona con sospecha de sensibilidad al gluten.","faqs_es":[{"question":"¿Por qué necesito comer gluten antes de la prueba?","answer":"Los anticuerpos celíacos solo se producen en respuesta al gluten. Si está en dieta sin gluten, los anticuerpos pueden disminuir a niveles indetectables, causando un resultado falso negativo."},{"question":"¿Qué pasa si tengo deficiencia de IgA?","answer":"Aproximadamente 2-3% de personas con celíaca tienen deficiencia de IgA, lo que puede causar tTG-IgA falso negativo. Si su IgA total es baja, se puede ordenar una prueba basada en IgG."},{"question":"¿Un resultado positivo confirma celíaca?","answer":"Una prueba de anticuerpos positiva sugiere fuertemente celíaca pero el diagnóstico generalmente se confirma con biopsia intestinal. Algunos médicos pueden diagnosticar sin biopsia si los anticuerpos son muy altos."}],"createdAt":{"_nanoseconds":423000000,"_seconds":1769634722},"cptCode":"82784, 86364 (x2), 86258 (x2)"},{"id":"ttg-igg-iga","questCode":"11073","name":"TTG IgG and IgA","shortName":"TTG Antibodies","description":"Tissue transglutaminase antibodies for celiac disease screening.","category":"autoimmune","price":45,"costPrice":37.5,"fastingRequired":false,"labVendor":"Quest","biomarkers":["tTG IgA","tTG IgG"],"turnaroundDays":"3-5","sampleTypes":["serum"],"longDescription":"The Tissue Transglutaminase (TTG) antibody test is the recommended first-line screening test for celiac disease. It measures two types of antibodies:\n\n**TTG IgA** is the primary marker and is highly sensitive and specific for celiac disease in people with normal IgA levels.\n\n**TTG IgG** is included because approximately 2-3% of celiac patients have IgA deficiency, which would cause a false-negative IgA result.\n\nCeliac disease is an autoimmune condition where gluten triggers the immune system to attack the small intestine, leading to malabsorption, nutritional deficiencies, and various symptoms.\n\n**Important:** You must be eating gluten regularly for at least 2-4 weeks before testing. A gluten-free diet will cause antibody levels to drop, potentially causing false-negative results.","symptomsAddressed":["Chronic diarrhea","Bloating","Abdominal pain","Unexplained weight loss","Fatigue","Iron deficiency","Brain fog","Joint pain","Skin rash","Numbness or tingling"],"shortSummary":"The most accurate blood test for celiac disease screening. Measures antibodies your body produces in response to gluten if you have celiac disease.","whoIsItFor":"Anyone with digestive symptoms that may indicate celiac disease (chronic diarrhea, bloating, abdominal pain, weight loss). Also recommended for those with unexplained iron deficiency, vitamin D deficiency, osteoporosis, or fatigue. First-degree relatives of celiac patients (10x higher risk), people with other autoimmune conditions (Type 1 diabetes, thyroid disease), and those with dermatitis herpetiformis (celiac skin rash).","whenToTest":"No fasting required. **Critical: You must be eating gluten regularly for at least 2-4 weeks before testing.** If you have already gone gluten-free, you will need to do a \"gluten challenge\" - eating gluten daily for 2-4 weeks before testing. Without gluten exposure, antibodies will decline and cause false-negative results.","conditionsScreened":["Celiac disease","Gluten sensitivity assessment","Dermatitis herpetiformis"],"faqs":[{"question":"Do I need to eat gluten before this test?","answer":"Yes - this is critical. You must eat gluten regularly (equivalent to 1-2 slices of bread daily) for at least 2-4 weeks before testing. Going gluten-free before testing will cause false-negative results because antibody levels drop quickly without gluten exposure."},{"question":"What if my TTG is negative but I still react to gluten?","answer":"A negative TTG does not rule out non-celiac gluten sensitivity (NCGS), which does not produce these antibodies. If TTG is negative and you were eating gluten, celiac is unlikely, but you may still have gluten sensitivity or other digestive conditions like IBS."},{"question":"Why test both IgA and IgG?","answer":"About 2-3% of celiac patients have IgA deficiency, which causes false-negative TTG IgA results. Testing TTG IgG catches these cases. If your TTG IgA is negative, your doctor may also check your total IgA level."},{"question":"What happens if my test is positive?","answer":"A positive TTG typically leads to referral to a gastroenterologist for endoscopy with small intestine biopsy - the gold standard for celiac diagnosis. Some newer guidelines allow diagnosis without biopsy if antibody levels are very high (>10x normal) with classic symptoms."},{"question":"Can I have celiac disease without digestive symptoms?","answer":"Yes. Silent or atypical celiac disease is common. Some people have only fatigue, anemia, bone loss, or neurological symptoms. First-degree relatives should be screened even without symptoms due to their elevated risk."}],"h1Title":"TTG IgA & IgG Blood Test - Celiac Disease Screening","resultsOverview":"**Negative (TTG IgA <4 U/mL):**\nCeliac disease unlikely. If symptoms persist and you have eaten gluten regularly, consider total IgA level testing to rule out IgA deficiency.\n\n**Weak Positive (TTG IgA 4-10 U/mL):**\nBorderline result - may need repeat testing or additional markers (EMA, DGP antibodies).\n\n**Positive (TTG IgA >10 U/mL):**\nHighly suggestive of celiac disease. Confirmation typically requires endoscopy with intestinal biopsy, though some guidelines allow diagnosis based on very high antibody levels (>10x normal) with symptoms.\n\n**Note:** A positive TTG does not diagnose celiac disease alone - it indicates the need for further evaluation.","preparationInstructions":"Continue eating gluten-containing foods (bread, pasta, cereals) for at least 2-4 weeks before testing. Do not start a gluten-free diet before getting tested. If you have severe symptoms when eating gluten, discuss with your doctor before doing a gluten challenge.","whatItMeasures":"This panel measures two antibodies:\n\n- **TTG IgA**: Primary celiac marker (normal: <4 U/mL, varies by lab)\n  - Weak positive: 4-10 U/mL\n  - Positive: >10 U/mL\n\n- **TTG IgG**: Secondary marker for IgA-deficient patients\n  - Important when TTG IgA is negative but symptoms persist\n\nHigher antibody levels generally correlate with more intestinal damage, though levels can vary.","relatedTests":["vitamin-d","ferritin","vitamin-b12"],"relatedPanels":["panel-autoimmune-screen","panel-vitamin-mineral"],"name_es":"TTG IgG e IgA","biomarkers_es":["tTG IgA","tTG IgG"],"description_es":"Anticuerpos de transglutaminasa tisular para detección de enfermedad celíaca.","shortName_es":"TTG","whenToTest_es":"Debe estar consumiendo gluten regularmente antes de la prueba. No comience una dieta sin gluten hasta después de completar las pruebas.","longDescription_es":"Esta prueba proporciona detección más completa de enfermedad celíaca midiendo tanto anticuerpos IgA como IgG contra transglutaminasa tisular. Esto es particularmente importante porque aproximadamente 2-3% de pacientes celíacos tienen deficiencia de IgA, lo que haría que las pruebas solo de IgA fueran falsamente negativas.\n\nAl incluir IgG, esta prueba detecta enfermedad celíaca incluso en aquellos que no pueden producir anticuerpos IgA adecuados.","conditionsScreened_es":["Enfermedad celíaca","Deficiencia de IgA con celíaca"],"shortSummary_es":"Detección integral de enfermedad celíaca que mide tanto anticuerpos IgA como IgG para mejor precisión, especialmente en aquellos con deficiencia de IgA.","whatItMeasures_es":"Esta prueba mide tanto anticuerpos IgA como IgG de Transglutaminasa Tisular. Incluir ambos tipos de anticuerpos mejora la detección, especialmente para individuos con deficiencia de IgA.","symptomsAddressed_es":["Síntomas gastrointestinales crónicos","Malabsorción","Anemia inexplicable","Deficiencias nutricionales"],"whoIsItFor_es":"Personas con sospecha de enfermedad celíaca, aquellos con deficiencia conocida de IgA, individuos con síntomas gastrointestinales crónicos, y personas con antecedentes familiares de celíaca.","faqs_es":[{"question":"¿Por qué probar tanto IgA como IgG?","answer":"Aproximadamente 2-3% de pacientes celíacos tienen deficiencia de IgA. Probar solo IgA perdería estos casos. Incluir IgG asegura detección incluso con deficiencia de IgA."},{"question":"¿Cuál anticuerpo es más importante?","answer":"tTG-IgA es más sensible y específico cuando los niveles de IgA son normales. tTG-IgG es útil cuando IgA es deficiente pero es menos específico en individuos con IgA normal."}],"cptCode":"86364 (x2)","metaTitle":"TTG IgA/IgG Test - $45 | Celiac Disease Screening | Justlabs","metaDescription":"Order a Tissue Transglutaminase (TTG) antibody test for $45. The gold standard screening test for celiac disease. Results in 3-5 days. No doctor visit required."},{"id":"omega-check","questCode":"92701","name":"OmegaCheck (Omega-3 and 6)","shortName":"OmegaCheck","description":"Measures omega-3 and omega-6 fatty acid levels and their ratio. Important for inflammation and heart health.","category":"inflammation","price":28,"costPrice":25,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Total Omega-3","Total Omega-6","EPA","DHA","AA/EPA Ratio","Arachidonic Acid","DPA","LA","Omega-6/Omega-3 Ratio"],"turnaroundDays":"5-7","sampleTypes":["whole-blood"],"longDescription":"The OmegaCheck test provides a comprehensive assessment of your essential fatty acid status, measuring both omega-3 and omega-6 levels in red blood cell membranes.\n\nUnlike blood tests that reflect recent meals, this test measures fatty acids stored in cell membranes, reflecting your average intake over the past 2-3 months.\n\n**The Omega-3 Index** (EPA + DHA as a percentage of total fatty acids) is increasingly recognized as an important cardiovascular risk marker. Studies show that an Omega-3 Index above 8% is associated with significantly lower risk of sudden cardiac death.\n\nThe test also measures your **AA/EPA ratio** - the balance between inflammatory arachidonic acid (omega-6) and anti-inflammatory EPA (omega-3). Western diets typically have too much omega-6 relative to omega-3.","symptomsAddressed":["Chronic inflammation","Joint pain","Dry skin or eyes","Brain fog","Mood issues","Cardiovascular concerns","Fatigue"],"shortSummary":"Measures your omega-3 levels (EPA, DHA) and their ratio to inflammatory omega-6. Your Omega-3 Index is one of the best predictors of cardiovascular health.","whoIsItFor":"Anyone concerned about cardiovascular health, inflammation, or brain function. Particularly valuable for people with heart disease risk factors, those taking fish oil supplements who want to verify effectiveness, anyone with inflammatory conditions (arthritis, autoimmune disease), vegetarians/vegans who may have low omega-3 intake, and people with depression, anxiety, or cognitive concerns.","whenToTest":"No fasting required. Since this test measures fatty acids in cell membranes (accumulated over months), a single meal will not affect results. For monitoring supplement effectiveness, retest after 3-4 months of consistent supplementation.","conditionsScreened":["Cardiovascular disease risk","Omega-3 deficiency","Inflammatory state assessment","Essential fatty acid imbalance"],"metaDescription":"Order an OmegaCheck test for $27. Measures your Omega-3 Index, EPA, DHA, and inflammatory AA/EPA ratio. Essential for heart health and inflammation assessment. Results in 5-7 days.","faqs":[{"question":"What is a good Omega-3 Index?","answer":"An Omega-3 Index above 8% is considered cardioprotective and is associated with the lowest risk of sudden cardiac death and cardiovascular events. Most Americans are between 4-5%. Populations with high fish intake (Japan, Scandinavia) often have indices above 8%."},{"question":"How can I raise my Omega-3 Index?","answer":"Eat fatty fish (salmon, mackerel, sardines, anchovies) 2-3 times per week, or take a quality fish oil supplement providing at least 1000-2000mg of combined EPA+DHA daily. Algae-based supplements work for vegetarians. Reducing omega-6 intake (vegetable oils, processed foods) also helps improve your ratio."},{"question":"Why test cell membranes instead of blood plasma?","answer":"Blood plasma omega-3 levels fluctuate based on recent meals. Cell membrane levels (what this test measures) reflect your average intake over 2-3 months, providing a much more accurate picture of your true omega-3 status."},{"question":"How long until fish oil supplements show up in this test?","answer":"Red blood cell turnover takes about 120 days. You will see meaningful changes after 3-4 months of consistent supplementation. This is why the test is useful for verifying whether your supplement regimen is actually working."},{"question":"Is the AA/EPA ratio more important than the Omega-3 Index?","answer":"Both are valuable. The Omega-3 Index is the best-validated cardiovascular marker. The AA/EPA ratio provides additional insight into your inflammatory balance. Ideally, optimize both - Omega-3 Index above 8% and AA/EPA ratio below 5."}],"metaTitle":"OmegaCheck Test - $27 | Omega-3 & 6 Levels | Justlabs","h1Title":"OmegaCheck - Omega-3 and Omega-6 Fatty Acid Test","resultsOverview":"**Omega-3 Index interpretation:**\n- Below 4%: High cardiovascular risk - significant improvement needed\n- 4-8%: Intermediate risk - room for improvement\n- Above 8%: Cardioprotective range - associated with lowest cardiac risk\n\n**AA/EPA Ratio:**\n- Below 5: Excellent - low inflammatory state\n- 5-15: Moderate - typical Western diet range\n- Above 15: High inflammatory state - increase omega-3, reduce omega-6\n\nMost Americans have an Omega-3 Index around 4-5%, well below optimal. Increasing fatty fish intake or supplementing with quality fish oil typically raises levels significantly within 3-4 months.","preparationInstructions":"No fasting or special preparation needed. Continue taking fish oil or omega-3 supplements as usual - the goal is to see your typical levels. Note any supplements you take so results can be interpreted properly.","whatItMeasures":"This test measures four key markers:\n\n- **Omega-3 Index** (EPA + DHA percentage):\n  - High risk: <4%\n  - Intermediate: 4-8%\n  - Optimal (cardioprotective): >8%\n\n- **EPA (Eicosapentaenoic acid)**: Anti-inflammatory omega-3\n\n- **DHA (Docosahexaenoic acid)**: Critical for brain and eye health\n\n- **AA/EPA Ratio**: Inflammation balance\n  - Optimal: <5\n  - Moderate inflammation: 5-15\n  - High inflammation: >15","relatedTests":["hscrp","lipid-panel","homocysteine"],"relatedPanels":["panel-heart-health","panel-inflammation"],"name_es":"OmegaCheck (Omega-3 y 6)","biomarkers_es":["Omega-3","Omega-6","Relación Omega-6/Omega-3","Índice Omega-3"],"description_es":"Mide los niveles de ácidos grasos omega-3 y omega-6 y su relación para evaluación de salud cardiovascular.","shortName_es":"Omega-3 y 6","whenToTest_es":"No se requiere ayuno. Los niveles de omega-3 en glóbulos rojos reflejan ingesta a largo plazo (últimos 2-3 meses), por lo que tomar un suplemento justo antes de la prueba no afectará los resultados.","longDescription_es":"El Índice Omega-3 mide el porcentaje de ácidos grasos omega-3 (EPA y DHA) incorporados en las membranas de sus glóbulos rojos. A diferencia de las pruebas séricas de omega-3, este método refleja su ingesta promedio durante los últimos 2-3 meses, proporcionando una imagen más estable y clínicamente significativa.\n\nLa investigación muestra que un Índice Omega-3 de 8% o más está asociado con riesgo significativamente menor de enfermedad cardíaca y muerte cardíaca súbita en comparación con índices por debajo de 4%.","conditionsScreened_es":["Riesgo de enfermedad cardiovascular","Estado de ácidos grasos omega-3","Respuesta a suplementación"],"shortSummary_es":"Mide su Índice Omega-3, un predictor de riesgo de enfermedad cardíaca. Niveles más altos están asociados con menor riesgo cardiovascular.","whatItMeasures_es":"Esta prueba mide su Índice Omega-3, que es el porcentaje de ácidos grasos omega-3 (EPA + DHA) en las membranas de sus glóbulos rojos. Un índice de 8% o más se considera óptimo para la salud cardíaca.","symptomsAddressed_es":["Evaluación de riesgo cardíaco","Monitoreo de suplementos de omega-3","Optimización de salud general"],"whoIsItFor_es":"Cualquier persona interesada en la salud cardiovascular, aquellos que no comen pescado regularmente, personas que toman suplementos de omega-3, individuos con antecedentes familiares de enfermedad cardíaca, y aquellos que monitorean la respuesta a la suplementación.","faqs_es":[{"question":"¿Cuál es un buen Índice Omega-3?","answer":"8% o más se considera óptimo. 4-8% es intermedio y puede mejorarse. Por debajo de 4% indica mayor riesgo cardiovascular y se recomienda aumentar la ingesta de omega-3."},{"question":"¿Cuánto omega-3 debo tomar?","answer":"La dosis varía según su nivel inicial e índice objetivo. Típicamente, 1-2 gramos de EPA+DHA combinados diariamente pueden aumentar su índice en aproximadamente 4-5 puntos porcentuales durante varios meses."},{"question":"¿El pescado es mejor que los suplementos?","answer":"Ambos pueden aumentar efectivamente su Índice Omega-3. El pescado graso (salmón, caballa, sardinas) 2-3 veces por semana es ideal. Los suplementos de aceite de pescado de calidad son una buena alternativa para no consumidores de pescado."}],"cptCode":"82542"},{"id":"adiponectin","questCode":"15060","name":"Adiponectin","shortName":"Adiponectin","description":"Hormone from fat tissue that affects insulin sensitivity and inflammation.","category":"metabolic","price":38,"costPrice":31.94,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Adiponectin"],"turnaroundDays":"3-5","sampleTypes":["serum"],"metaTitle":"Adiponectin Test - $38 | Metabolic & Insulin Sensitivity | Justlabs","metaDescription":"Order an Adiponectin blood test for $38. Measure this key metabolic hormone that regulates insulin sensitivity and inflammation. Results in 3-5 days.","h1Title":"Adiponectin Blood Test","shortSummary":"Adiponectin is a hormone produced by fat cells that plays a crucial role in regulating glucose levels and fatty acid breakdown.","longDescription":"Adiponectin is an adipokine - a signaling protein secreted by adipose (fat) tissue. Unlike most fat-derived hormones, adiponectin levels are inversely related to body fat: higher body fat typically means lower adiponectin. This hormone has powerful anti-inflammatory and insulin-sensitizing effects.\n\nLow adiponectin levels are associated with insulin resistance, type 2 diabetes, metabolic syndrome, and increased cardiovascular risk. Testing adiponectin can provide insights into your metabolic health beyond standard glucose and lipid tests.","whatItMeasures":"This test measures the concentration of adiponectin in your blood. Normal ranges typically fall between 4-26 µg/mL for men and 5-37 µg/mL for women. Lower levels are associated with metabolic dysfunction, while higher levels indicate better metabolic health.","whoIsItFor":"People concerned about metabolic syndrome, insulin resistance, or type 2 diabetes risk. Also useful for those with obesity, PCOS, fatty liver disease, or a family history of diabetes who want a deeper look at metabolic health markers.","symptomsAddressed":["Difficulty losing weight","Insulin resistance","High blood sugar","Fatigue after meals","Central obesity","High triglycerides"],"conditionsScreened":["Metabolic syndrome","Insulin resistance","Type 2 diabetes risk","Cardiovascular disease risk","Non-alcoholic fatty liver disease"],"whenToTest":"No fasting is required. Test when evaluating metabolic health, especially if you have risk factors for diabetes or metabolic syndrome. Can be used to monitor the effectiveness of lifestyle interventions.","resultsOverview":"Higher adiponectin levels are generally favorable and associated with better insulin sensitivity and lower inflammation. Low levels may indicate increased risk for metabolic conditions and cardiovascular disease. Results should be interpreted alongside other metabolic markers.","faqs":[{"question":"What is a good adiponectin level?","answer":"Generally, higher is better. Levels above 10 µg/mL are associated with better metabolic health. Women typically have higher levels than men due to hormonal differences."},{"question":"Can I increase my adiponectin levels?","answer":"Yes! Weight loss, regular exercise, omega-3 fatty acids, and a Mediterranean-style diet can help increase adiponectin. Reducing visceral fat is particularly effective."},{"question":"Why do I need this test if I already have glucose and lipid tests?","answer":"Adiponectin provides additional insight into metabolic health and insulin sensitivity that standard tests may miss. It can help identify risk before glucose or lipid abnormalities appear."}],"relatedTests":["hemoglobin-a1c","insulin-fasting","leptin","hs-crp"],"name_es":"Adiponectina","biomarkers_es":["Adiponectina"],"description_es":"Hormona del tejido adiposo que regula el metabolismo de glucosa y la descomposición de ácidos grasos.","shortName_es":"Adiponectina","whenToTest_es":"Se prefiere el ayuno de 8-12 horas para resultados más consistentes. Las pruebas matutinas son ideales.","longDescription_es":"La adiponectina es una hormona producida por las células de grasa que, paradójicamente, disminuye a medida que aumenta la grasa corporal. Juega roles importantes en la regulación de glucosa, descomposición de ácidos grasos y reducción de inflamación.\n\nNiveles altos de adiponectina están asociados con mejor sensibilidad a la insulina, menor riesgo de diabetes tipo 2, reducción del riesgo cardiovascular y mejor perfil metabólico general. Los niveles bajos se ven con obesidad, resistencia a la insulina y síndrome metabólico.","conditionsScreened_es":["Síndrome metabólico","Resistencia a la insulina","Riesgo de diabetes tipo 2","Riesgo cardiovascular","Obesidad"],"shortSummary_es":"La adiponectina es una hormona protectora secretada por el tejido adiposo que mejora la sensibilidad a la insulina y tiene efectos antiinflamatorios. Niveles más altos indican mejor salud metabólica.","whatItMeasures_es":"Esta prueba mide el nivel de adiponectina en su sangre, reportado en mcg/mL. A diferencia de la mayoría de las hormonas del tejido adiposo, la adiponectina disminuye con la obesidad. Niveles más altos son generalmente mejores para la salud metabólica.","symptomsAddressed_es":["Ganancia de peso","Niveles altos de azúcar en sangre","Colesterol anormal","Evaluación de salud metabólica"],"whoIsItFor_es":"Personas con resistencia a la insulina o síndrome metabólico, aquellos con sobrepeso u obesidad, individuos evaluando riesgo de diabetes, personas con antecedentes familiares de diabetes tipo 2, y aquellos que monitorean el progreso de pérdida de peso.","faqs_es":[{"question":"¿Por qué la adiponectina es más baja en personas obesas?","answer":"A medida que el tejido adiposo se expande, se vuelve disfuncional e inflamado, produciendo menos adiponectina protectora. La pérdida de peso típicamente aumenta los niveles de adiponectina."},{"question":"¿Puedo aumentar mi adiponectina?","answer":"Sí. La pérdida de peso es la forma más efectiva. El ejercicio, especialmente el entrenamiento aeróbico, también aumenta la adiponectina. Algunos estudios sugieren que los ácidos grasos omega-3 pueden ayudar."},{"question":"¿Qué es un buen nivel de adiponectina?","answer":"Los rangos varían según el laboratorio, pero generalmente niveles más altos son mejores. Mujeres típicamente tienen niveles más altos que hombres. Su médico puede interpretar sus resultados en contexto."}],"cptCode":"83520"},{"id":"leptin","questCode":"90367","name":"Leptin","shortName":"Leptin","description":"Satiety hormone from fat cells. Helps regulate appetite and energy balance.","category":"metabolic","price":30,"costPrice":28.06,"fastingRequired":true,"fastingHours":8,"labVendor":"Quest","biomarkers":["Leptin"],"turnaroundDays":"3-5","sampleTypes":["serum"],"metaTitle":"Leptin Test - $30 | Appetite & Metabolism Hormone | Justlabs","metaDescription":"Order a leptin blood test for $30. Measure the satiety hormone that regulates hunger and metabolism. 8-hour fasting required. Results in 3-5 days.","h1Title":"Leptin Blood Test","shortSummary":"Leptin is the \"satiety hormone\" produced by fat cells that signals fullness to the brain. Testing helps identify leptin resistance, a condition linked to obesity and metabolic dysfunction.","longDescription":"Leptin is a hormone produced primarily by adipose (fat) tissue. Its main function is to signal to your brain that you have enough energy stored and don't need to eat more—essentially turning off hunger. The more fat tissue you have, the more leptin you produce.\n\nParadoxically, most obese individuals have high leptin levels, not low. This is because they develop \"leptin resistance\"—the brain stops responding to leptin's signals despite high levels. This creates a vicious cycle: the brain thinks it's starving even when fat stores are abundant, driving continued overeating and reduced metabolism.\n\nTesting leptin levels can help identify leptin resistance and provide insights into metabolic dysfunction that standard tests may miss.","whatItMeasures":"This test measures the concentration of leptin hormone in your blood, reported in ng/mL. Levels correlate strongly with body fat percentage and are typically higher in women than men.","whoIsItFor":"People struggling with weight loss despite diet and exercise, those investigating persistent hunger or overeating, individuals with obesity or metabolic syndrome, anyone interested in metabolic health optimization, and people with unexplained weight gain.","symptomsAddressed":["Constant hunger despite adequate eating","Difficulty losing weight","Weight gain or obesity","Low energy and metabolism","Cravings for high-calorie foods","Feeling cold","Fatigue"],"conditionsScreened":["Leptin resistance","Obesity evaluation","Metabolic syndrome","Hypothalamic dysfunction","Rare leptin deficiency","Weight regulation disorders"],"whenToTest":"8-hour fast required. Test in the morning for most consistent results. Leptin levels naturally fluctuate throughout the day and can be affected by recent meals.","resultsOverview":"Normal ranges vary by sex and body composition. Men: 0.5-12 ng/mL, Women: 3.7-11.1 ng/mL. Elevated levels in obese individuals suggest leptin resistance. Very low levels are rare but may indicate leptin deficiency.","faqs":[{"question":"What is leptin resistance?","answer":"Leptin resistance occurs when the brain stops responding to leptin despite high levels. The brain thinks you are starving even when you have excess fat. This drives hunger, reduces metabolism, and makes weight loss extremely difficult. It is common in obesity."},{"question":"Can leptin resistance be reversed?","answer":"Yes, leptin sensitivity can improve with weight loss, reduced inflammation, better sleep, exercise, and time-restricted eating. These changes help restore the brain's ability to hear leptin's signals."},{"question":"Should I take leptin supplements?","answer":"Leptin supplements (typically leptin pills) are not effective because leptin is a protein that gets digested and broken down before it can work. True leptin injections exist but are only for rare genetic leptin deficiency, not leptin resistance."},{"question":"How does leptin relate to obesity?","answer":"Obesity is associated with high leptin levels but leptin resistance—the brain doesn't respond to the signal. This explains why many people with obesity feel hungry despite having plenty of energy stored as fat."}],"relatedTests":["insulin-fasting","adiponectin","hemoglobin-a1c","hs-crp","lipid-panel"],"createdBy":"script","name_es":"Leptina","biomarkers_es":["Leptina"],"description_es":"Hormona de la saciedad producida por células grasas. Importante para regulación del peso y metabolismo.","shortName_es":"Leptina","whenToTest_es":"Se prefiere el ayuno de 8-12 horas. Las pruebas matutinas son ideales ya que los niveles de leptina pueden variar durante el día.","longDescription_es":"La leptina es producida por el tejido adiposo y actúa en el cerebro para regular el apetito, el gasto de energía y el peso corporal. Se supone que señala saciedad - cuanta más grasa tiene, más leptina produce, lo que debería reducir el apetito.\n\nSin embargo, muchas personas obesas tienen niveles muy altos de leptina pero aún experimentan hambre constante. Esta condición, llamada resistencia a la leptina, significa que el cerebro no responde adecuadamente a las señales de leptina.","conditionsScreened_es":["Resistencia a la leptina","Deficiencia de leptina (rara)","Obesidad","Trastornos metabólicos"],"shortSummary_es":"La leptina es la hormona de 'saciedad' producida por las células de grasa que le dice a su cerebro que está lleno. Los niveles altos con obesidad sugieren resistencia a la leptina.","whatItMeasures_es":"Esta prueba mide el nivel de leptina en su sangre, reportado en ng/mL. Los niveles de leptina típicamente se correlacionan con la masa de grasa corporal - niveles más altos se ven en individuos con más grasa corporal.","symptomsAddressed_es":["Dificultad para perder peso","Hambre constante","Obesidad","Patrones alimentarios anormales"],"whoIsItFor_es":"Personas con dificultad para perder peso, aquellos con obesidad severa, individuos investigando señales de hambre/saciedad, personas con sospecha de trastornos genéticos de leptina, y aquellos evaluando función hormonal metabólica.","faqs_es":[{"question":"¿Qué es la resistencia a la leptina?","answer":"Similar a la resistencia a la insulina, la resistencia a la leptina ocurre cuando el cerebro deja de responder a las señales de leptina. Los niveles altos de leptina con obesidad continua sugieren resistencia."},{"question":"¿Se puede revertir la resistencia a la leptina?","answer":"Sí, a través de pérdida de peso, reducción de inflamación, mejora del sueño y ejercicio. Reducir el consumo de alimentos procesados y azúcar también puede ayudar a restaurar la sensibilidad a la leptina."},{"question":"¿Se puede usar leptina para perder peso?","answer":"Los suplementos de leptina no funcionan porque la resistencia a la leptina significa que más leptina no ayuda. El enfoque debe estar en abordar las causas subyacentes de la resistencia."}],"createdAt":{"_nanoseconds":532000000,"_seconds":1769634722},"cptCode":"83520"},{"id":"iga-total","questCode":"539","name":"Immunoglobulin A (IgA)","shortName":"IgA","description":"Measures IgA antibody levels. Important for mucosal immunity and celiac testing accuracy.","category":"autoimmune","price":10,"costPrice":6,"fastingRequired":false,"labVendor":"Quest","biomarkers":["IgA"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"IgA Test - $9 | Immunoglobulin A | Mucosal Immunity | Justlabs","metaDescription":"Order an IgA blood test for $9. Measures antibodies important for mucosal immunity. Essential for celiac disease testing accuracy. No fasting. Results in 2-3 days.","h1Title":"Immunoglobulin A (IgA) Blood Test","shortSummary":"IgA is an antibody that plays a crucial role in mucosal immunity, protecting your respiratory and digestive tracts. Testing IgA levels helps assess immune function and is essential before celiac disease testing.","longDescription":"Immunoglobulin A (IgA) is an antibody that provides protection at mucosal surfaces—the linings of your respiratory tract, digestive system, urinary tract, and other areas exposed to the outside world. It's your first line of defense against many pathogens.\n\nIgA is particularly important in celiac disease testing because most celiac tests measure IgA-based antibodies (like TTG-IgA). About 2-3% of people have IgA deficiency, which can cause false-negative celiac results. Testing total IgA alongside celiac antibodies ensures accurate interpretation.\n\nIgA deficiency is the most common primary immunodeficiency, often asymptomatic but sometimes associated with recurrent infections or autoimmune conditions.","whatItMeasures":"This test measures the total concentration of IgA antibodies in your blood, reported in mg/dL. It does not test for specific infections—it measures overall IgA production.","whoIsItFor":"Anyone being tested for celiac disease (to ensure accurate results), people with recurrent respiratory or GI infections, those with suspected immunodeficiency, individuals with autoimmune conditions, and people with chronic sinusitis or bronchitis.","symptomsAddressed":["Recurrent sinus infections","Frequent respiratory infections","Chronic diarrhea","Recurrent GI infections","Frequent ear infections","Allergies"],"conditionsScreened":["IgA deficiency","Celiac disease testing accuracy","Immune deficiency evaluation","Multiple myeloma","Autoimmune conditions"],"whenToTest":"No fasting required. Always test total IgA when ordering celiac disease testing to ensure accurate interpretation of results.","resultsOverview":"Normal adult IgA: 70-400 mg/dL. IgA deficiency is defined as <7 mg/dL with normal IgG and IgM. Selective IgA deficiency is usually asymptomatic. Elevated IgA can occur in liver disease, autoimmune conditions, and certain cancers.","faqs":[{"question":"Why test IgA before celiac testing?","answer":"Most celiac tests use IgA-based antibodies (TTG-IgA). If you have IgA deficiency, these tests may be falsely negative even if you have celiac disease. Knowing your IgA status ensures proper test selection and interpretation."},{"question":"What is selective IgA deficiency?","answer":"Selective IgA deficiency is the most common primary immunodeficiency, affecting 1 in 300-500 people. Many have no symptoms. Some experience more infections or autoimmune conditions. There is no treatment—management focuses on treating infections when they occur."},{"question":"Can IgA deficiency cause problems with blood transfusions?","answer":"Yes, in rare cases. People with complete IgA deficiency can develop anti-IgA antibodies, which may cause severe reactions to blood products containing IgA. If you have IgA deficiency, inform healthcare providers before any blood transfusions."},{"question":"Can IgA levels be improved?","answer":"IgA deficiency is usually permanent and cannot be treated directly. However, maintaining overall health, addressing underlying conditions, and prompt treatment of infections can help manage the condition."}],"relatedTests":["ttg-igg-iga","cmp","cbc"],"name_es":"Inmunoglobulina A (IgA)","biomarkers_es":["IgA Total"],"description_es":"Mide el nivel total de anticuerpos IgA. Importante para pruebas celíacas y evaluación de inmunodeficiencia.","shortName_es":"IgA Total","whenToTest_es":"No se requiere ayuno. Puede analizarse en cualquier momento del día. A menudo se ordena junto con pruebas de enfermedad celíaca.","longDescription_es":"La Inmunoglobulina A (IgA) es el tipo de anticuerpo más producido en el cuerpo, encontrado principalmente en secreciones mucosas. Protege los revestimientos del tracto respiratorio, tracto GI y tracto urinario de infecciones.\n\nLa deficiencia de IgA es la deficiencia inmune primaria más común, afectando a 1 de cada 400-500 personas. Muchos con deficiencia de IgA son asintomáticos, pero algunos experimentan infecciones frecuentes. Importante, la deficiencia de IgA afecta las pruebas de enfermedad celíaca ya que la prueba estándar tTG-IgA dará falsos negativos.","conditionsScreened_es":["Deficiencia de IgA","Enfermedad celíaca (como prueba adjunta)","Trastornos de inmunodeficiencia","Infecciones recurrentes"],"shortSummary_es":"IgA es un anticuerpo crucial para la inmunidad de mucosas. Esta prueba detecta deficiencia, que afecta las pruebas de celíaca y puede causar infecciones aumentadas.","whatItMeasures_es":"Esta prueba mide el nivel total de anticuerpos Inmunoglobulina A (IgA) en su sangre. IgA es el anticuerpo más abundante en las superficies mucosas (intestino, vías respiratorias) y proporciona defensa de primera línea contra patógenos.","symptomsAddressed_es":["Infecciones respiratorias frecuentes","Infecciones sinusales crónicas","Diarrea crónica","Infecciones recurrentes"],"whoIsItFor_es":"Personas que se realizan pruebas de enfermedad celíaca, aquellos con infecciones sinusales o respiratorias frecuentes, individuos con diarrea crónica, personas evaluando función inmune, y aquellos con antecedentes familiares de deficiencia de IgA.","faqs_es":[{"question":"¿Por qué es importante IgA para las pruebas de celíaca?","answer":"La prueba celíaca estándar (tTG-IgA) mide anticuerpos IgA. Si tiene deficiencia de IgA, esta prueba será falsamente negativa incluso si tiene celíaca. Por eso IgA total se analiza junto con pruebas celíacas."},{"question":"¿Qué es la deficiencia de IgA?","answer":"Deficiencia de IgA significa niveles muy bajos (<7 mg/dL) de anticuerpos IgA. Es la inmunodeficiencia primaria más común pero muchas personas no tienen síntomas."},{"question":"¿Se puede tratar la deficiencia de IgA?","answer":"No hay tratamiento directo para reemplazar IgA. El manejo se enfoca en tratar infecciones prontamente y evitar transfusiones de sangre que contengan IgA (que pueden causar reacciones en algunos)."}],"cptCode":"82784"},{"id":"psa-total","questCode":"5363","name":"PSA, Total","shortName":"PSA","description":"Prostate-Specific Antigen test for prostate cancer screening. Recommended for men over 50 (or 40 with risk factors).","category":"mens-health","price":12,"costPrice":9,"fastingRequired":false,"labVendor":"Quest","biomarkers":["PSA"],"turnaroundDays":"1-2","popular":true,"sampleTypes":["serum"],"metaTitle":"PSA Test - $11 | Prostate Cancer Screening | Justlabs","metaDescription":"Order a PSA (Prostate-Specific Antigen) blood test for $11. Screen for prostate cancer and monitor prostate health. No fasting required. Results in 1-2 days.","h1Title":"PSA (Prostate-Specific Antigen) Blood Test","shortSummary":"PSA is a protein produced by the prostate gland. Elevated levels can indicate prostate cancer, enlarged prostate, or prostatitis. This test is a key tool for prostate cancer screening.","longDescription":"Prostate-Specific Antigen (PSA) is a protein produced exclusively by prostate cells. Small amounts normally leak into the bloodstream, but elevated levels can signal prostate problems including cancer, benign prostatic hyperplasia (BPH), or infection.\n\nPSA testing has been instrumental in detecting prostate cancer early, when it's most treatable. However, PSA is not specific to cancer—it can be elevated by non-cancerous conditions. This has led to debate about routine screening, as elevated PSA may lead to further testing and potential overtreatment of slow-growing cancers.\n\nCurrent guidelines recommend shared decision-making: men should discuss the benefits and risks of PSA screening with their healthcare provider, considering their individual risk factors and preferences.","whatItMeasures":"This test measures the total concentration of PSA protein in your blood, reported in ng/mL. The result includes both free PSA and PSA bound to proteins.","whoIsItFor":"Men over 50 (or 40 with risk factors like family history or African American heritage), anyone with urinary symptoms, men monitoring known prostate conditions, and those wanting baseline prostate health assessment.","symptomsAddressed":["Difficulty urinating","Frequent urination","Weak urine stream","Blood in urine","Pelvic pain","Painful urination","Erectile dysfunction"],"conditionsScreened":["Prostate cancer screening","Benign prostatic hyperplasia (BPH)","Prostatitis","Prostate cancer monitoring","Post-treatment surveillance"],"whenToTest":"No fasting required. Avoid ejaculation for 24-48 hours before testing. Wait 6 weeks after prostate biopsy, prostate surgery, or urinary tract infection, as these can temporarily elevate PSA.","resultsOverview":"Traditional cutoff: 4.0 ng/mL. However, age-specific ranges are often used: 40-49: 0-2.5, 50-59: 0-3.5, 60-69: 0-4.5, 70+: 0-6.5 ng/mL. PSA velocity (rate of change) is also important. Elevated PSA warrants discussion with a urologist.","faqs":[{"question":"Does high PSA mean I have cancer?","answer":"Not necessarily. PSA can be elevated by benign conditions like enlarged prostate (BPH), prostatitis, recent ejaculation, or vigorous exercise. Only about 25% of men with elevated PSA who undergo biopsy are found to have cancer."},{"question":"Should all men get PSA testing?","answer":"This is an individual decision. Current guidelines recommend discussing screening with your doctor starting at age 50 (or 40-45 for high-risk men). Consider your family history, race, overall health, and personal preferences."},{"question":"What happens if my PSA is elevated?","answer":"Your doctor may recommend repeat testing, additional tests like Free PSA ratio, imaging studies, or referral to a urologist. Not all elevated PSA requires immediate biopsy—many factors influence next steps."},{"question":"How often should I test PSA?","answer":"If screening, every 1-2 years is typical for average-risk men. Men with elevated PSA or known prostate conditions may need more frequent monitoring. Your doctor will recommend an appropriate schedule."}],"relatedTests":["psa-free-total","testosterone-free-total","cmp"],"name_es":"PSA Total","biomarkers_es":["PSA Total"],"whenToTest_es":"No se requiere ayuno. Evita la eyaculación 24-48 horas antes de la prueba. Evita andar en bicicleta o actividades que presionen la próstata. No analices durante infección urinaria activa.","metaDescription_es":"Ordena una prueba de PSA por $12. Tamizaje de cáncer de próstata y monitoreo de salud prostática. Importante para hombres mayores de 50. Resultados en 1-2 días.","h1Title_es":"Análisis de Sangre de PSA Total","metaTitle_es":"Prueba de PSA Total - $12 | Tamizaje de Próstata | Justlabs","shortName_es":"PSA","symptomsAddressed_es":["Tamizaje de rutina de próstata","Dificultad para orinar","Micción frecuente","Flujo de orina débil"],"whoIsItFor_es":"Hombres mayores de 50 años discutiendo tamizaje de próstata con su médico, hombres afroamericanos mayores de 45 años (mayor riesgo), quienes tienen antecedentes familiares de cáncer de próstata (comenzar a los 40-45), y hombres monitoreando PSA conocido elevado.","resultsOverview_es":"PSA <4.0 ng/mL generalmente es normal. PSA 4-10 ng/mL es la \"zona gris\" - puede ser cáncer o HPB. PSA >10 ng/mL amerita investigación adicional. La tendencia a lo largo del tiempo es más informativa que un solo resultado.","longDescription_es":"El Antígeno Prostático Específico (PSA) es una proteína producida por células prostáticas normales y cancerosas. Los niveles elevados pueden indicar:\n\n• Cáncer de próstata\n• Hiperplasia prostática benigna (HPB/agrandamiento)\n• Prostatitis (infección/inflamación)\n• Trauma reciente o examen rectal\n\nImportante: el PSA no es específico del cáncer. Muchos hombres con PSA elevado no tienen cáncer, y algunos cánceres de próstata no elevan el PSA. Las decisiones de tamizaje deben discutirse con un médico.","conditionsScreened_es":["Cáncer de próstata","Hiperplasia prostática benigna","Prostatitis"],"description_es":"Mide el antígeno prostático específico, usado para tamizaje y monitoreo del cáncer de próstata.","shortSummary_es":"El PSA es una proteína producida por la próstata. Niveles elevados pueden indicar cáncer de próstata, pero también agrandamiento benigno o infección. Es la prueba principal de tamizaje de próstata.","whatItMeasures_es":"Esta prueba mide el PSA total en ng/mL. General: <4.0 ng/mL es normal. Sin embargo, el riesgo varía por edad: hombres más jóvenes deberían tener PSA más bajo. La velocidad del PSA (tasa de cambio) también es importante.","cptCode":"84153"},{"id":"psa-free-total","questCode":"31348","name":"PSA, Free & Total","shortName":"PSA Free/Total","description":"Complete PSA panel including free PSA percentage. Helps distinguish benign conditions from cancer risk.","category":"mens-health","price":18,"costPrice":10,"fastingRequired":false,"labVendor":"Quest","biomarkers":["PSA Total","PSA Free","PSA % Free"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Free & Total PSA Test - $18 | Enhanced Prostate Screening | Justlabs","metaDescription":"Order a Free & Total PSA blood test for $18. The free PSA ratio helps distinguish cancer from benign prostate conditions. No fasting required. Results in 1-2 days.","h1Title":"PSA Free & Total Blood Test","shortSummary":"This enhanced PSA panel measures both total PSA and free PSA, calculating the free PSA percentage. This ratio helps distinguish prostate cancer from benign prostatic hyperplasia when total PSA is elevated.","longDescription":"The Free & Total PSA test provides more information than total PSA alone. PSA circulates in two forms: \"free\" (unbound) and \"complexed\" (bound to proteins). The percentage of free PSA can help distinguish between prostate cancer and benign conditions when total PSA is elevated (typically 4-10 ng/mL—the \"gray zone\").\n\nProstate cancer tends to produce more complexed PSA, resulting in a lower percentage of free PSA. Benign prostatic hyperplasia (BPH) typically has a higher percentage of free PSA. This distinction can help avoid unnecessary biopsies in men with elevated total PSA from benign causes.\n\nThis test is most useful when total PSA is in the 4-10 ng/mL range, where the free PSA ratio provides the most diagnostic value.","whatItMeasures":"This test measures: (1) Total PSA in ng/mL, (2) Free PSA in ng/mL, and (3) Free PSA percentage (free PSA ÷ total PSA × 100). All three values are important for interpretation.","whoIsItFor":"Men with elevated total PSA (especially 4-10 ng/mL), those wanting more detailed prostate assessment, men trying to avoid unnecessary biopsy, anyone with borderline PSA results, and those monitoring known prostate conditions.","symptomsAddressed":["Difficulty urinating","Frequent urination","Weak urine stream","Elevated PSA on previous test","Family history of prostate cancer","Pelvic pain"],"conditionsScreened":["Prostate cancer risk assessment","Benign prostatic hyperplasia (BPH)","Prostatitis evaluation","Post-biopsy monitoring","Treatment response monitoring"],"whenToTest":"No fasting required. Same precautions as total PSA: avoid ejaculation for 24-48 hours before testing. Wait 6 weeks after any prostate procedures or infections.","resultsOverview":"The free PSA ratio interpretation: >25% free PSA suggests BPH (low cancer risk), 10-25% is intermediate, <10% suggests higher cancer risk. However, these are guidelines—clinical context matters. A low percentage doesn't confirm cancer, and a high percentage doesn't exclude it.","faqs":[{"question":"When is free PSA useful?","answer":"Free PSA is most helpful when total PSA is between 4-10 ng/mL (the \"gray zone\"). In this range, the free PSA percentage helps distinguish BPH from cancer risk and can help decide whether biopsy is needed."},{"question":"What does a low free PSA percentage mean?","answer":"A lower percentage of free PSA (below 10-15%) is associated with higher cancer risk. However, this is a probability assessment, not a diagnosis. Many men with low free PSA do not have cancer, and some with high free PSA do."},{"question":"Can free PSA replace the need for biopsy?","answer":"Free PSA helps inform the decision about biopsy but doesn't replace it. If cancer is suspected based on PSA, free PSA, imaging, or examination, biopsy remains the only way to definitively diagnose prostate cancer."},{"question":"Should I get free PSA or total PSA?","answer":"For initial screening, total PSA alone is often sufficient. Free PSA is most valuable when total PSA is elevated (4-10 ng/mL) and you need more information to decide about further testing. Your doctor can advise which test is appropriate."}],"relatedTests":["psa-total","testosterone-free-total","urinalysis"],"name_es":"PSA Libre y Total","biomarkers_es":["PSA Total","PSA Libre","Porcentaje de PSA Libre"],"description_es":"Mide PSA total y libre para evaluación más precisa de la salud prostática y riesgo de cáncer.","shortName_es":"PSA L&T","whenToTest_es":"No se requiere ayuno. Evite la eyaculación 24-48 horas antes de la prueba. Evite andar en bicicleta o actividades que presionen la próstata. No analice si tiene infección urinaria activa.","longDescription_es":"Cuando el PSA total está elevado (típicamente 4-10 ng/mL), puede ser difícil distinguir entre cáncer de próstata y condiciones benignas como HPB (hiperplasia prostática benigna). La prueba de PSA Libre y Total ayuda a hacer esta distinción.\n\nEl PSA existe en dos formas en la sangre: libre (no unido) y unido a proteínas. El cáncer de próstata tiende a producir más PSA unido, resultando en un porcentaje más bajo de PSA libre. Las condiciones benignas típicamente tienen un porcentaje más alto de PSA libre.","conditionsScreened_es":["Cáncer de próstata","Hiperplasia prostática benigna (HPB)","Prostatitis"],"shortSummary_es":"Mide tanto PSA libre como total para ayudar a distinguir entre cáncer de próstata y condiciones benignas. Un porcentaje más bajo de PSA libre sugiere mayor riesgo de cáncer.","whatItMeasures_es":"Esta prueba mide tanto PSA total como PSA libre, y calcula el porcentaje de PSA libre. PSA total incluye tanto PSA libre como unido. La proporción de PSA libre ayuda a distinguir entre cáncer de próstata y condiciones benignas.","symptomsAddressed_es":["Seguimiento de PSA elevado","Evaluación de riesgo de cáncer de próstata","Guía para decisión de biopsia"],"whoIsItFor_es":"Hombres con PSA total elevado que necesitan más evaluación, aquellos determinando si se necesita biopsia, hombres que monitorean la salud de la próstata, e individuos con antecedentes familiares de cáncer de próstata.","faqs_es":[{"question":"¿Qué porcentaje de PSA libre es preocupante?","answer":"PSA libre por debajo del 10% tiene mayor riesgo de cáncer. 10-25% es la zona gris. Por encima del 25% sugiere enfermedad benigna. Estos umbrales ayudan a guiar las decisiones de biopsia."},{"question":"¿Debería hacerme esta prueba si mi PSA total es normal?","answer":"Si su PSA total es normal (<4 ng/mL), el porcentaje de PSA libre típicamente no es necesario. Es más útil cuando el PSA total está en el rango elevado de 4-10 ng/mL."},{"question":"¿Puede esta prueba reemplazar una biopsia?","answer":"No, pero ayuda a determinar si se necesita una biopsia. Un porcentaje muy alto de PSA libre puede evitar biopsias innecesarias, mientras que un porcentaje bajo puede indicar la necesidad de biopsia."}],"cptCode":"84153, 84154"},{"id":"urinalysis","questCode":"5463","name":"Urinalysis, Complete","shortName":"Urinalysis","description":"Complete urine analysis for UTI detection, kidney health, and general screening.","category":"general","price":16,"costPrice":3.96,"fastingRequired":false,"labVendor":"Quest","biomarkers":["pH","Specific Gravity","Protein","Glucose","Ketones","Blood","Leukocytes","Nitrites"],"turnaroundDays":"1","sampleTypes":["urine"],"metaTitle":"Urinalysis Test - $16 | UTI & Kidney Screening | Justlabs","metaDescription":"Order a complete urinalysis for $16. Screen for UTIs, kidney disease, diabetes, and other conditions. Non-invasive urine test. Results in 1 day.","h1Title":"Complete Urinalysis","shortSummary":"A complete urinalysis examines the physical, chemical, and microscopic properties of urine to screen for urinary tract infections, kidney disease, diabetes, and other conditions.","longDescription":"Urinalysis is one of the oldest and most valuable diagnostic tests in medicine. By examining urine—a product of kidney filtration—this test provides insights into urinary tract health, kidney function, metabolic conditions, and overall health.\n\nA complete urinalysis includes three components: visual examination (color, clarity), chemical analysis (dipstick testing for proteins, glucose, blood, and other substances), and microscopic examination (cells, crystals, bacteria). Abnormalities can indicate infection, kidney disease, diabetes, dehydration, and many other conditions.\n\nUrinalysis is non-invasive, inexpensive, and provides rapid results, making it an excellent screening tool and an essential part of health evaluation.","whatItMeasures":"This test analyzes: pH (acidity), specific gravity (concentration), protein, glucose, ketones, blood, leukocytes (white blood cells), nitrites, bilirubin, urobilinogen, and microscopic elements like cells, casts, and crystals.","whoIsItFor":"Anyone with urinary symptoms (pain, frequency, blood in urine), those screening for kidney disease, people with diabetes, pregnant women, anyone with unexplained abdominal pain, and those wanting routine health screening.","symptomsAddressed":["Painful urination","Frequent urination","Blood in urine","Cloudy or foul-smelling urine","Abdominal or back pain","Fever with urinary symptoms","Urinary urgency"],"conditionsScreened":["Urinary tract infection (UTI)","Kidney disease","Diabetes (glucose in urine)","Dehydration","Kidney stones","Bladder cancer screening","Proteinuria (protein in urine)"],"whenToTest":"No fasting required. Ideally provide a \"clean-catch\" midstream sample. Avoid testing during menstruation (can contaminate sample with blood). First morning urine is often most concentrated and useful.","resultsOverview":"Normal urine is yellow, clear, with pH 4.5-8, specific gravity 1.005-1.030, and negative for protein, glucose, blood, leukocytes, and nitrites. Abnormalities suggest specific conditions: nitrites/leukocytes suggest infection, glucose suggests diabetes, protein may indicate kidney disease.","faqs":[{"question":"What does protein in urine mean?","answer":"Small amounts of protein can be normal, especially after exercise. Persistent proteinuria may indicate kidney damage, high blood pressure effects, or diabetes-related kidney disease. If found, your doctor may order follow-up testing."},{"question":"Can urinalysis detect UTI?","answer":"Urinalysis can strongly suggest UTI by detecting leukocytes (white blood cells) and nitrites (produced by bacteria). However, urine culture is the gold standard for confirming UTI and identifying the specific bacteria for proper antibiotic selection."},{"question":"Why is my urine dark?","answer":"Dark urine often indicates dehydration—drinking more water usually helps. However, it can also result from certain foods, medications, or medical conditions like liver problems (very dark) or blood in urine (red/brown). Persistent dark urine warrants evaluation."},{"question":"How should I collect the sample?","answer":"Clean-catch midstream: Start urinating into the toilet, then catch the middle portion in the sterile cup, and finish in the toilet. This reduces contamination from skin bacteria. Follow any specific instructions from the lab."}],"relatedTests":["cmp","cbc","renal-panel"],"name_es":"Análisis de Orina Completo","biomarkers_es":["pH","Gravedad Específica","Proteína","Glucosa","Cetonas","Bilirrubina","Sangre","Nitritos","Leucocitos","Urobilinógeno"],"description_es":"Evaluación integral de la orina para salud renal, infecciones del tracto urinario y trastornos metabólicos.","shortName_es":"Urianálisis","whenToTest_es":"Generalmente se prefiere una muestra de la primera orina de la mañana ya que es más concentrada. Para algunas pruebas, se puede solicitar una muestra de chorro medio. Evite vitaminas/suplementos excesivos que pueden afectar el color.","longDescription_es":"El análisis de orina es una de las pruebas de detección más versátiles y rentables disponibles. Al examinar las propiedades físicas, la composición química y el contenido microscópico de la orina, puede detectar una amplia gama de condiciones.\n\nLa orina es esencialmente sangre filtrada, por lo que anormalidades en la sangre a menudo aparecen en la orina. Glucosa en orina sugiere diabetes, proteína puede indicar daño renal, y sangre/nitritos/leucocitos pueden indicar infección.","conditionsScreened_es":["Infección del tracto urinario","Enfermedad renal","Diabetes","Deshidratación","Cálculos renales","Problemas hepáticos"],"shortSummary_es":"Un análisis completo de la orina que detecta infecciones, enfermedad renal, diabetes y otras condiciones a través de evaluación visual, química y microscópica.","whatItMeasures_es":"Este análisis evalúa múltiples características de la orina: Apariencia (color, claridad), Químico (pH, gravedad específica, proteína, glucosa, cetonas, sangre, bilirrubina, nitritos, leucocitos) y Microscópico (células, bacterias, cristales, cilindros).","symptomsAddressed_es":["Micción dolorosa","Micción frecuente","Orina turbia u olorosa","Sangre en orina","Dolor abdominal o de espalda"],"whoIsItFor_es":"Personas con síntomas urinarios, aquellos con sospecha de infección del tracto urinario, individuos que monitorean diabetes o enfermedad renal, mujeres embarazadas, y cualquier persona que necesite evaluación de salud general.","faqs_es":[{"question":"¿Puede un análisis de orina detectar ITU?","answer":"Sí. Leucocitos positivos, nitritos y/o bacterias sugieren ITU. Sin embargo, el urocultivo es la prueba definitiva si se necesita confirmación o identificación de bacterias específicas."},{"question":"¿Qué significa proteína en orina?","answer":"Pequeñas cantidades pueden ser normales, especialmente después del ejercicio. La proteína persistente puede indicar enfermedad renal, presión arterial alta u otras condiciones y justifica evaluación adicional."},{"question":"¿Las vitaminas pueden afectar los resultados?","answer":"Sí, las vitaminas B pueden volver la orina de color amarillo brillante/naranja. La vitamina C puede interferir con algunas pruebas. Informe sobre suplementos al interpretar resultados."}],"cptCode":"81001"},{"id":"sed-rate","questCode":"809","name":"ESR (Sed Rate)","shortName":"ESR","description":"Erythrocyte Sedimentation Rate measures inflammation. Elevated in infections, autoimmune diseases, and cancer.","category":"inflammation","price":8,"costPrice":4.89,"fastingRequired":false,"labVendor":"Quest","biomarkers":["ESR"],"turnaroundDays":"1","sampleTypes":["whole-blood"],"metaTitle":"ESR Test (Sed Rate) - $8 | Inflammation Marker | Justlabs","metaDescription":"Order an ESR (Erythrocyte Sedimentation Rate) test for $8. Detect inflammation from infections, autoimmune diseases, or cancer. Results in 1 day.","h1Title":"ESR (Erythrocyte Sedimentation Rate) Blood Test","shortSummary":"The ESR test, also called sed rate, is a simple blood test that measures how quickly red blood cells settle to the bottom of a test tube, indicating the level of inflammation in your body.","longDescription":"The Erythrocyte Sedimentation Rate (ESR) is one of the oldest and most reliable tests for detecting inflammation in the body. When inflammation is present, certain proteins in the blood cause red blood cells to clump together and fall faster than normal.\n\nWhile ESR doesn't identify what's causing inflammation or where it's located, it's an excellent screening tool that can prompt further investigation. It's particularly useful for monitoring inflammatory conditions over time and assessing response to treatment.\n\nESR is often ordered alongside other inflammatory markers like C-reactive protein (CRP) to get a more complete picture of inflammation. While CRP responds quickly to inflammation changes, ESR changes more gradually, making it useful for tracking chronic conditions.","whatItMeasures":"This test measures how fast red blood cells settle in a vertical tube over one hour, reported in millimeters per hour (mm/hr). Higher rates indicate more inflammation. Normal ranges vary by age and sex: men under 50 typically have ESR below 15 mm/hr, women under 50 below 20 mm/hr, with higher values normal for older adults.","whoIsItFor":"Anyone with unexplained symptoms like fever, joint pain, or fatigue. People being evaluated for autoimmune conditions, infections, or cancer. Patients with known inflammatory conditions monitoring disease activity. Those with temporal arteritis or polymyalgia rheumatica symptoms.","symptomsAddressed":["Unexplained fever","Joint pain or stiffness","Muscle aches","Headaches (especially temporal)","Unexplained weight loss","Fatigue","Night sweats","Anemia symptoms"],"conditionsScreened":["Rheumatoid arthritis","Lupus","Temporal arteritis","Polymyalgia rheumatica","Inflammatory bowel disease","Infections","Certain cancers","Kidney disease"],"whenToTest":"No fasting required. Blood can be drawn at any time. For monitoring chronic conditions, test at consistent intervals recommended by your healthcare provider.","resultsOverview":"Results show the rate in mm/hr. Normal values depend on age and sex. Mildly elevated (20-40 mm/hr) may indicate minor inflammation or normal aging. Moderately elevated (40-100 mm/hr) suggests significant inflammation. Very high (>100 mm/hr) often indicates serious infection, autoimmune disease, or malignancy requiring further evaluation.","faqs":[{"question":"What does a high ESR mean?","answer":"A high ESR indicates inflammation somewhere in the body but doesn't tell you the cause or location. Further testing is needed to determine the source. Common causes include infections, autoimmune diseases, and certain cancers."},{"question":"What's the difference between ESR and CRP?","answer":"Both measure inflammation, but CRP rises and falls more quickly (hours), while ESR changes more gradually (days to weeks). ESR is better for monitoring chronic conditions; CRP is better for detecting acute inflammation."},{"question":"Can ESR be elevated without being sick?","answer":"Yes. ESR naturally increases with age, pregnancy, obesity, and anemia. Some medications can also affect results. A mildly elevated ESR without symptoms may not indicate disease."},{"question":"How often should ESR be monitored?","answer":"For chronic inflammatory conditions, your doctor may recommend testing every few weeks to months to track disease activity and response to treatment. Frequency depends on your specific condition."}],"relatedTests":["crp-hs","cbc-diff","ana-titer-pattern","rf"],"createdBy":"script","name_es":"VSG (Velocidad de Sedimentación)","biomarkers_es":["VSG"],"description_es":"Marcador de inflamación inespecífico. Elevado en infecciones, enfermedades autoinmunes y cáncer.","shortName_es":"VSG","whenToTest_es":"No se requiere ayuno. Puede analizarse en cualquier momento del día. A menudo se ordena junto con PCR para evaluación de inflamación.","longDescription_es":"La Velocidad de Sedimentación Globular (VSG o Sed Rate) es una de las pruebas más antiguas y simples para detectar inflamación. Cuando hay inflamación, las proteínas en la sangre hacen que los glóbulos rojos se agrupen y se asienten más rápido.\n\nVSG es no específica - no le dice qué está causando la inflamación o dónde está. Pero es útil para detectar inflamación, monitorear enfermedades inflamatorias y evaluar la respuesta al tratamiento. A menudo se ordena con PCR para un panorama de inflamación más completo.","conditionsScreened_es":["Artritis reumatoide","Lupus","Arteritis de células gigantes","Polimialgia reumática","Infección","Cáncer"],"shortSummary_es":"VSG es un marcador de inflamación no específico. Niveles elevados indican inflamación en algún lugar del cuerpo pero no identifican la fuente.","whatItMeasures_es":"Esta prueba mide qué tan rápido los glóbulos rojos se asientan en el fondo de un tubo de ensayo en una hora, reportado en mm/hr. Tasas de sedimentación más rápidas indican más inflamación en el cuerpo.","symptomsAddressed_es":["Fiebre inexplicable","Dolor articular","Fatiga","Pérdida de peso","Dolores de cabeza","Rigidez muscular"],"whoIsItFor_es":"Personas con sospecha de condiciones inflamatorias, aquellos con dolor articular o rigidez inexplicables, individuos que monitorean enfermedades autoinmunes, personas con fiebre de origen desconocido, y aquellos evaluando la respuesta al tratamiento.","faqs_es":[{"question":"¿Cuál es la diferencia entre VSG y PCR?","answer":"Ambos detectan inflamación pero PCR responde más rápido (horas vs días). VSG puede permanecer elevada más tiempo después de que la inflamación se resuelve. PCR es más sensible para inflamación aguda; VSG es mejor para monitorear condiciones crónicas."},{"question":"¿Qué puede causar VSG alta?","answer":"Muchas condiciones: infecciones, enfermedades autoinmunes (AR, lupus), cánceres, enfermedad renal, anemia y embarazo. Algunos medicamentos también afectan VSG."},{"question":"¿Puede VSG ser demasiado baja?","answer":"VSG muy baja es rara pero puede ocurrir con policitemia, drepanocitosis, insuficiencia cardíaca congestiva severa o niveles muy bajos de proteínas."}],"createdAt":{"_nanoseconds":635000000,"_seconds":1769634722},"cptCode":"85652"},{"id":"magnesium-serum","questCode":"622","name":"Magnesium, Serum","shortName":"Magnesium","description":"Measures magnesium in blood. Important for muscle, nerve, and heart function.","category":"vitamin","price":7,"costPrice":4.24,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Magnesium"],"turnaroundDays":"1","sampleTypes":["serum"],"metaTitle":"Serum Magnesium Test - $7 | Mineral Blood Test | Justlabs","metaDescription":"Order a Serum Magnesium blood test for $7. Screen for magnesium deficiency affecting muscles, nerves, and heart. No fasting required. Results in 1 day.","h1Title":"Serum Magnesium Blood Test","shortSummary":"Serum magnesium measures the level of magnesium in your blood. While useful for detecting severe deficiency, it may not reflect your true magnesium status since most magnesium is stored in cells and bones.","longDescription":"Magnesium is the fourth most abundant mineral in the body and is essential for over 300 enzymatic reactions, including muscle and nerve function, blood sugar control, blood pressure regulation, protein synthesis, and energy production.\n\nThis test measures magnesium in blood serum. It's important to understand that serum magnesium represents only about 1% of total body magnesium—the rest is in cells, bones, and tissues. The body tightly regulates serum magnesium, pulling from stores to maintain blood levels even when you're becoming deficient.\n\nBecause of this, serum magnesium is better at detecting severe or acute deficiency than mild or chronic insufficiency. If you have symptoms of magnesium deficiency but normal serum levels, consider RBC (red blood cell) magnesium for a more accurate assessment of your cellular magnesium status.","whatItMeasures":"This test measures magnesium concentration in blood serum, reported in mg/dL or mEq/L. Normal range is typically 1.7-2.3 mg/dL (1.4-1.9 mEq/L). Low serum magnesium (<1.7 mg/dL) indicates deficiency. Critically low (<1.2 mg/dL) can cause serious symptoms.","whoIsItFor":"People with muscle cramps or spasms, those with heart arrhythmias or palpitations, individuals on diuretics or PPIs long-term, diabetics (magnesium is commonly low), people with alcoholism, those with digestive conditions affecting absorption, and anyone with severe or acute symptoms suggesting deficiency.","symptomsAddressed":["Muscle cramps and spasms","Heart palpitations or arrhythmias","Fatigue and weakness","Numbness or tingling","Seizures (severe deficiency)","Loss of appetite","Nausea","Mental confusion"],"conditionsScreened":["Hypomagnesemia (low magnesium)","Hypermagnesemia (high magnesium)","Cardiac arrhythmia evaluation","Diabetes mellitus","Malabsorption syndromes","Alcoholism","Kidney disease","Medication effects monitoring"],"whenToTest":"No fasting required. Serum magnesium can be tested any time. Note that normal serum magnesium does not rule out deficiency—for a more comprehensive assessment, consider RBC magnesium.","resultsOverview":"Normal: 1.7-2.3 mg/dL. Low (<1.7 mg/dL): deficiency likely, may cause symptoms. Critically low (<1.2 mg/dL): severe deficiency, can cause dangerous heart rhythm issues. High (>2.6 mg/dL): usually from kidney failure or excess supplementation, can cause weakness and cardiac effects.","faqs":[{"question":"Is serum magnesium accurate?","answer":"Serum magnesium is good at detecting severe deficiency but can miss mild or chronic insufficiency. Since the body maintains serum levels by pulling from cells, your serum can be normal while you're actually depleted. RBC magnesium is more sensitive for detecting cellular deficiency."},{"question":"Why is magnesium important?","answer":"Magnesium is involved in over 300 enzyme systems including energy production, muscle and nerve function, blood sugar regulation, blood pressure control, and protein synthesis. Deficiency is associated with muscle cramps, heart arrhythmias, anxiety, poor sleep, and many chronic conditions."},{"question":"What causes low magnesium?","answer":"Common causes include inadequate dietary intake, chronic diarrhea or vomiting, alcoholism, diabetes, certain medications (PPIs, diuretics), kidney disease, and malabsorption conditions like celiac disease or Crohn's."},{"question":"Should I get serum or RBC magnesium?","answer":"Serum is useful for acute or severe deficiency and is commonly included in metabolic panels. RBC magnesium better reflects cellular status and is preferred for detecting chronic or mild deficiency. If serum is normal but you have symptoms, test RBC magnesium."}],"relatedTests":["magnesium-rbc","calcium","potassium","vitamin-d","bmp"],"createdBy":"script","name_es":"Magnesio Sérico","biomarkers_es":["Magnesio"],"description_es":"Mide los niveles de magnesio en sangre. Importante para función muscular, nerviosa y salud cardíaca.","shortName_es":"Magnesio","whenToTest_es":"No se requiere ayuno. Puede analizarse en cualquier momento del día. Evite suplementos de magnesio 24 horas antes para obtener su nivel basal.","longDescription_es":"El magnesio es el cuarto mineral más abundante en el cuerpo y es esencial para más de 300 reacciones enzimáticas. Juega roles críticos en la función muscular y nerviosa, ritmo cardíaco, regulación de presión arterial, metabolismo de glucosa y síntesis de proteínas.\n\nEl magnesio sérico es la prueba más comúnmente ordenada pero tiene limitaciones - solo refleja aproximadamente el 1% del magnesio corporal total. La mayor parte del magnesio está dentro de las células o huesos. Puede tener niveles séricos normales mientras está deficiente a nivel celular.","conditionsScreened_es":["Deficiencia de magnesio","Toxicidad por magnesio","Enfermedad renal","Hipertiroidismo","Efectos de medicamentos"],"shortSummary_es":"Mide los niveles de magnesio en sangre. El magnesio es esencial para la función muscular y nerviosa, ritmo cardíaco, control de azúcar en sangre y producción de energía.","whatItMeasures_es":"Esta prueba mide el nivel de magnesio en su suero sanguíneo, reportado en mg/dL. El rango normal es típicamente 1.7-2.2 mg/dL. Sin embargo, el magnesio sérico solo refleja aproximadamente el 1% del magnesio corporal total.","symptomsAddressed_es":["Calambres musculares","Fatiga","Debilidad","Latidos cardíacos irregulares","Entumecimiento/hormigueo","Dificultad para dormir"],"whoIsItFor_es":"Personas con calambres o espasmos musculares, aquellos que toman diuréticos o inhibidores de bomba de protones, individuos con problemas cardíacos, personas con diabetes, aquellos con malabsorción o diarrea crónica, y cualquier persona con fatiga inexplicable.","faqs_es":[{"question":"¿Por qué el magnesio sérico no siempre es preciso?","answer":"Solo el 1% del magnesio corporal está en sangre. El cuerpo trabaja duro para mantener estable el magnesio sérico, sacándolo de huesos y células. Puede estar deficiente celularmente con niveles séricos normales."},{"question":"¿Qué medicamentos afectan el magnesio?","answer":"Los diuréticos (furosemida, hidroclorotiazida) aumentan las pérdidas de magnesio. Los IBP reducen la absorción de magnesio. El uso prolongado de cualquiera puede causar deficiencia."},{"question":"¿Cuáles son los signos de deficiencia de magnesio?","answer":"Calambres musculares, espasmos, debilidad, fatiga, ritmo cardíaco anormal, entumecimiento/hormigueo, y a veces ansiedad o dificultad para dormir. La deficiencia severa puede causar convulsiones."}],"createdAt":{"_nanoseconds":734000000,"_seconds":1769634722},"cptCode":"83735"},{"id":"prothrombin-time","questCode":"8847","name":"Prothrombin Time (PT/INR)","shortName":"PT/INR","description":"Blood clotting test. Used for warfarin monitoring and bleeding disorder assessment.","category":"general","price":10,"costPrice":6,"fastingRequired":false,"labVendor":"Quest","biomarkers":["PT","INR"],"turnaroundDays":"1","sampleTypes":["plasma"],"longDescription":"The Prothrombin Time (PT) test measures how long it takes for your blood to clot. The result is also expressed as an INR (International Normalized Ratio), which standardizes results across different laboratories.\n\nThis test evaluates the extrinsic and common pathways of blood coagulation, specifically measuring the function of clotting factors I (fibrinogen), II (prothrombin), V, VII, and X.\n\nFor people taking warfarin (Coumadin), regular PT/INR monitoring is critical to ensure the medication is working properly without increasing bleeding risk.","symptomsAddressed":["Easy bruising","Prolonged bleeding from cuts","Frequent nosebleeds","Blood in urine or stool","Heavy menstrual periods","Unexplained bleeding"],"shortSummary":"Measures how quickly your blood clots. Essential for anyone on blood thinners like warfarin, or investigating unexplained bleeding or bruising.","whoIsItFor":"Patients taking warfarin (Coumadin) or other vitamin K antagonists who need regular monitoring. Also useful for people with unexplained bleeding, easy bruising, frequent nosebleeds, or heavy menstrual periods. Commonly ordered before surgery to assess bleeding risk, or to evaluate liver function since the liver produces clotting factors.","whenToTest":"No fasting required. If on warfarin, test at the same time of day relative to your dose for consistent results. Your doctor will advise on testing frequency - typically weekly when starting warfarin, then monthly once stable.","conditionsScreened":["Bleeding disorders","Vitamin K deficiency","Liver disease","Warfarin effect monitoring","DIC (Disseminated Intravascular Coagulation)","Factor deficiencies"],"faqs":[{"question":"How often should I check my INR on warfarin?","answer":"When starting warfarin, INR is typically checked every few days until stable. Once stable, most patients test every 2-4 weeks. Some patients on long-term therapy may test monthly. Your doctor will determine the right frequency for you."},{"question":"What can affect my INR results?","answer":"Many things affect INR: vitamin K-rich foods (leafy greens), alcohol, many medications (antibiotics, NSAIDs), supplements (fish oil, vitamin E), illness, and changes in diet. Consistency is key - try to keep vitamin K intake steady rather than avoiding it completely."},{"question":"What is the difference between PT and INR?","answer":"PT is the actual time in seconds for your blood to clot. INR converts this to a standardized ratio so results can be compared across different labs and testing methods. INR is the preferred measure for monitoring warfarin therapy."},{"question":"Can I get this test if I am not on blood thinners?","answer":"Yes. PT/INR is also useful for investigating unexplained bleeding, assessing liver function, or evaluating clotting before surgery. It is not exclusively for warfarin patients."}],"h1Title":"Prothrombin Time (PT/INR) - Blood Clotting Test","resultsOverview":"**For patients NOT on blood thinners:**\n- INR 0.8-1.2: Normal\n- INR above 1.2: May indicate liver disease, vitamin K deficiency, or clotting factor issues\n\n**For patients ON warfarin:**\n- INR below 2.0: Blood may clot too easily (undertreated)\n- INR 2.0-3.0: Therapeutic range for most conditions\n- INR above 3.0: Increased bleeding risk (may need dose adjustment)\n- INR above 4.0: Significantly elevated bleeding risk - contact your doctor","preparationInstructions":"No fasting needed. Take your medications as usual unless your doctor advises otherwise. Inform the lab if you are taking any blood thinners, aspirin, or supplements that may affect clotting (fish oil, vitamin E, ginkgo).","whatItMeasures":"This test measures two related values:\n\n- **PT (Prothrombin Time)**: The time in seconds for blood to clot (normal: 11-13.5 seconds)\n- **INR (International Normalized Ratio)**: A standardized ratio comparing your clotting time to normal (target varies by condition)\n\nFor patients NOT on blood thinners: Normal INR is 0.8-1.2\nFor patients ON warfarin: Target INR is typically 2.0-3.0 (or 2.5-3.5 for mechanical heart valves)","relatedTests":["cbc-diff","comprehensive-metabolic-panel"],"relatedPanels":["panel-wellness-comprehensive","panel-metabolic-complete"],"name_es":"Tiempo de Protrombina (TP/INR)","biomarkers_es":["Tiempo de Protrombina","INR"],"description_es":"Mide el tiempo de coagulación de la sangre. Importante para monitoreo de anticoagulantes y función hepática.","shortName_es":"TP/INR","whenToTest_es":"No se requiere ayuno. Para monitoreo de warfarina, analice a la misma hora del día para consistencia. Informe sobre todos los medicamentos ya que muchos afectan la coagulación.","longDescription_es":"El Tiempo de Protrombina mide la vía extrínseca de la cascada de coagulación, evaluando qué tan rápido y bien coagula su sangre. El resultado se reporta de dos maneras: PT en segundos y el INR, que estandariza los resultados entre laboratorios.\n\nEl uso más común es monitorear la terapia con warfarina. Warfarina inhibe los factores de coagulación dependientes de vitamina K, prolongando el tiempo de coagulación. El objetivo de INR depende de la indicación - típicamente 2-3 para la mayoría de condiciones.","conditionsScreened_es":["Monitoreo de terapia con warfarina","Trastornos de coagulación","Enfermedad hepática","Deficiencia de vitamina K","Coagulación intravascular diseminada (CID)"],"shortSummary_es":"Mide la capacidad de coagulación de la sangre, esencial para monitorear la terapia con warfarina y diagnosticar trastornos de sangrado.","whatItMeasures_es":"Esta prueba mide cuánto tiempo tarda su sangre en coagular, reportado como PT (en segundos) e INR (proporción normalizada internacional). PT normal es aproximadamente 11-13.5 segundos. INR normal es aproximadamente 0.8-1.1 para personas que no toman anticoagulantes.","symptomsAddressed_es":["Moretones fáciles","Sangrado prolongado","Sangrado inexplicable","Evaluación preoperatoria"],"whoIsItFor_es":"Personas que toman warfarina u otros anticoagulantes, aquellos con sospecha de trastornos de coagulación, individuos con enfermedad hepática, personas que se preparan para cirugía, y aquellos con sangrado o moretones inexplicables.","faqs_es":[{"question":"¿Qué INR es peligroso?","answer":"INR por encima de 4 aumenta significativamente el riesgo de sangrado. INR por encima de 5 se considera alto y puede requerir intervención. Por el contrario, INR por debajo de 2 en alguien que necesita anticoagulación aumenta el riesgo de coágulos."},{"question":"¿Qué afecta los niveles de INR?","answer":"Muchos factores: ingesta de vitamina K en la dieta (vegetales de hoja verde), medicamentos (antibióticos, analgésicos), alcohol, enfermedad hepática y consistencia en la toma de warfarina."},{"question":"¿Con qué frecuencia debo revisar mi INR?","answer":"Inicialmente cada pocos días hasta que esté estable, luego típicamente mensual. Cualquier cambio en medicamentos, dieta o enfermedad puede justificar pruebas más frecuentes."}],"cptCode":"85610","metaTitle":"PT/INR Test - $10 | Blood Clotting Test | Justlabs","metaDescription":"Order a Prothrombin Time (PT/INR) test for $10. Essential for warfarin monitoring and bleeding disorder assessment. Same-day results. No doctor visit required."},{"id":"hcg-quantitative","questCode":"8396","name":"hCG, Quantitative (Pregnancy)","shortName":"hCG","description":"Quantitative pregnancy test that measures exact hCG levels. Useful for early pregnancy detection and monitoring.","category":"fertility","price":15,"costPrice":11.18,"fastingRequired":false,"labVendor":"Quest","biomarkers":["hCG"],"turnaroundDays":"1","sampleTypes":["serum"],"longDescription":"The quantitative hCG (human chorionic gonadotropin) blood test measures the precise amount of pregnancy hormone in your blood, unlike qualitative tests that only show positive or negative.\n\nThis test can detect pregnancy earlier than urine tests and is particularly valuable for:\n- Confirming very early pregnancy\n- Monitoring pregnancy viability (hCG should double every 48-72 hours in early pregnancy)\n- Detecting potential problems like ectopic pregnancy or miscarriage\n- Monitoring after miscarriage or treatment for molar pregnancy\n\nhCG is produced by the placenta after implantation and rises rapidly in early pregnancy, peaking around 8-11 weeks.","symptomsAddressed":["Missed period","Early pregnancy symptoms","Pregnancy confirmation needed","Monitoring after fertility treatment","Concerns about pregnancy viability"],"shortSummary":"Measures the exact level of hCG (pregnancy hormone) in your blood. More accurate than urine tests and can detect pregnancy earlier - as soon as 6-8 days after conception.","whoIsItFor":"Women who want to confirm pregnancy earlier than urine tests allow. Also for those with fertility treatments (IVF/IUI) who need precise monitoring, women with symptoms of ectopic pregnancy or miscarriage, those being monitored after pregnancy loss, or anyone whose home pregnancy test is unclear or inconsistent.","whenToTest":"No fasting required. Test anytime. For earliest detection, test 6-8 days after suspected conception (around the time of expected period). For monitoring, your doctor may request serial tests 48-72 hours apart to assess hCG doubling time.","conditionsScreened":["Pregnancy confirmation","Ectopic pregnancy","Miscarriage (threatened or complete)","Molar pregnancy","Pregnancy viability"],"faqs":[{"question":"How early can this test detect pregnancy?","answer":"A blood hCG test can detect pregnancy as early as 6-8 days after ovulation/conception - about a week before your missed period. Urine tests typically require hCG levels above 20-25 mIU/mL, while blood tests can detect levels as low as 5 mIU/mL."},{"question":"Why would I need a blood test instead of a urine test?","answer":"Blood tests detect lower hCG levels (earlier detection), provide exact numbers for monitoring, and are more reliable. They are preferred after fertility treatments, when monitoring for ectopic pregnancy or miscarriage risk, or when urine test results are unclear."},{"question":"What if my hCG is not doubling?","answer":"In normal early pregnancy, hCG typically doubles every 48-72 hours. Slower rise may indicate ectopic pregnancy or impending miscarriage, but some normal pregnancies have slower hCG rise. Your doctor will interpret results alongside ultrasound findings."},{"question":"Can medications affect the results?","answer":"hCG trigger shots (used in fertility treatment) can cause false positives for 10-14 days after injection. Other fertility medications do not typically affect results. Home pregnancy tests and blood tests measure the same hormone."},{"question":"When will hCG show up on an ultrasound?","answer":"A gestational sac is typically visible on transvaginal ultrasound when hCG reaches 1,000-2,000 mIU/mL (around 5-6 weeks). A fetal heartbeat is usually seen when hCG exceeds 5,000-10,000 mIU/mL (6-7 weeks)."}],"h1Title":"hCG Quantitative Blood Test - Pregnancy Hormone Test","resultsOverview":"**Single test interpretation:**\n- Below 5 mIU/mL: Not pregnant (or too early)\n- 5-25 mIU/mL: Possibly pregnant - retest in 48-72 hours\n- Above 25 mIU/mL: Pregnant\n\n**Serial testing (48-72 hours apart):**\n- hCG doubling: Normal early pregnancy progression\n- hCG rising but not doubling: Possible ectopic or nonviable pregnancy\n- hCG declining: Possible miscarriage\n\nNote: Wide ranges are normal. A single value is less meaningful than the trend over time.","preparationInstructions":"No special preparation needed. No fasting required. Inform the lab of any fertility medications as some (like hCG trigger shots) can temporarily affect results. Note the date of your last menstrual period for result interpretation.","whatItMeasures":"This test measures **beta-hCG (β-hCG)** in mIU/mL:\n\n- **Not pregnant**: Less than 5 mIU/mL\n- **3 weeks pregnant**: 5-50 mIU/mL\n- **4 weeks**: 5-426 mIU/mL\n- **5 weeks**: 18-7,340 mIU/mL\n- **6 weeks**: 1,080-56,500 mIU/mL\n- **7-8 weeks**: 7,650-229,000 mIU/mL\n- **9-12 weeks**: 25,700-288,000 mIU/mL (peak levels)\n\nAfter 12 weeks, hCG levels gradually decline and plateau for the remainder of pregnancy.","relatedTests":["estradiol","progesterone","fsh","lh"],"relatedPanels":["panel-fertility-female","panel-hormone-female"],"name_es":"hCG Cuantitativa (Embarazo)","biomarkers_es":["hCG"],"description_es":"Mide el nivel exacto de hormona del embarazo. Usado para confirmar y monitorear el embarazo temprano.","shortName_es":"hCG","whenToTest_es":"No se requiere ayuno. Puede analizarse en cualquier momento del día. Para rastrear el progreso del embarazo, pruebe cada 48-72 horas ya que hCG debería duplicarse aproximadamente en ese tiempo.","longDescription_es":"La hCG es producida por la placenta después de la implantación y es la hormona detectada por las pruebas de embarazo. La prueba cuantitativa proporciona un número específico en lugar de solo positivo/negativo, permitiendo el monitoreo de la progresión del embarazo.\n\nEn el embarazo temprano normal, los niveles de hCG se duplican aproximadamente cada 48-72 horas. Niveles que no aumentan adecuadamente pueden indicar embarazo ectópico, aborto espontáneo o error en las fechas. Los niveles de hCG alcanzan su pico alrededor de las semanas 8-11 y luego disminuyen.","conditionsScreened_es":["Confirmación de embarazo","Embarazo ectópico","Amenaza de aborto espontáneo","Tumores de células germinales","Enfermedad trofoblástica gestacional"],"shortSummary_es":"Mide el nivel exacto de hormona del embarazo para confirmar embarazo, rastrear el progreso del embarazo temprano y detectar ciertos cánceres.","whatItMeasures_es":"Esta prueba mide el nivel exacto de Gonadotropina Coriónica Humana (hCG) en su sangre, reportado en mIU/mL. A diferencia de las pruebas cualitativas (sí/no), esta proporciona un número específico que puede rastrearse a lo largo del tiempo.","symptomsAddressed_es":["Período perdido","Prueba de embarazo casera positiva","Sangrado vaginal en embarazo temprano","Dolor abdominal en embarazo temprano"],"whoIsItFor_es":"Mujeres confirmando embarazo temprano, aquellas que monitorean la viabilidad del embarazo, personas rastreando el progreso del embarazo, individuos después de aborto espontáneo o embarazo ectópico, y aquellos que se realizan pruebas de detección de tumores.","faqs_es":[{"question":"¿Qué nivel de hCG confirma el embarazo?","answer":"Cualquier nivel por encima de 5 mIU/mL generalmente se considera positivo. Sin embargo, niveles muy tempranos pueden estar en el rango de 5-25 mIU/mL. La repetición de pruebas que muestre niveles en aumento confirma un embarazo en curso."},{"question":"¿Con qué rapidez debería aumentar la hCG?","answer":"En el embarazo temprano normal, la hCG se duplica cada 48-72 horas. Un aumento de al menos 66% en 48 horas se considera normal. Aumentos más lentos pueden indicar problemas pero no son definitivos."},{"question":"¿Puede la hCG detectar embarazo ectópico?","answer":"Niveles de hCG que aumentan lentamente, se estancan o disminuyen pueden sugerir embarazo ectópico o aborto espontáneo. Sin embargo, el ultrasonido es necesario para el diagnóstico definitivo."}],"cptCode":"84702","metaTitle":"hCG Quantitative Test - $15 | Pregnancy Blood Test | Justlabs","metaDescription":"Order a quantitative hCG blood test for $15. Measures exact pregnancy hormone levels for early detection and monitoring. Same-day results. More accurate than urine tests."},{"id":"cystatin-c","questCode":"94588","name":"Cystatin C with eGFR","shortName":"Cystatin C","description":"More accurate kidney function marker than creatinine alone. Better for people with unusual muscle mass.","category":"kidney","price":16,"costPrice":14,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Cystatin C","eGFR Cystatin"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Cystatin C with eGFR Test - $16 | Accurate Kidney Function | Justlabs","metaDescription":"Order a Cystatin C with eGFR blood test for $16. More accurate kidney function measurement than creatinine alone. No fasting. Results in 2-3 days.","h1Title":"Cystatin C with eGFR Blood Test","shortSummary":"Cystatin C is a superior marker for kidney function that provides more accurate results than creatinine, especially for people with unusual muscle mass or those needing precise kidney assessment.","longDescription":"Cystatin C is a small protein produced by all nucleated cells in the body and filtered by the kidneys. Unlike creatinine, cystatin C levels are not significantly affected by muscle mass, diet, age, or sex, making it a more reliable marker of kidney function in many situations. This test measures cystatin C and calculates an estimated glomerular filtration rate (eGFR) based on cystatin C, providing a more accurate assessment of how well your kidneys filter blood. It is particularly useful for athletes, very muscular or very thin individuals, elderly patients, and anyone needing a more precise kidney function assessment than standard creatinine-based testing provides.","whatItMeasures":"This test measures cystatin C levels in your blood and calculates an eGFR (estimated Glomerular Filtration Rate) based on cystatin C. The eGFR indicates how well your kidneys filter waste from your blood, with higher values indicating better kidney function.","whoIsItFor":"Athletes and bodybuilders (high muscle mass affects creatinine accuracy), elderly individuals (muscle mass decline affects creatinine), people with unusual body composition, those with borderline creatinine-based eGFR results, vegetarians and vegans (diet affects creatinine), and anyone needing precise kidney function assessment.","symptomsAddressed":["Monitoring kidney function","Evaluating medication dosing","Assessing cardiovascular risk","Confirming borderline kidney results","Pre-surgical kidney assessment"],"conditionsScreened":["Chronic kidney disease","Acute kidney injury","Cardiovascular risk assessment","Drug dosing optimization","Early kidney dysfunction"],"whenToTest":"No fasting is required. This test can be taken at any time. It is often ordered alongside or instead of standard creatinine-based kidney function tests when more accuracy is needed.","resultsOverview":"Cystatin C-based eGFR values above 90 mL/min/1.73m² indicate normal kidney function. Values of 60-89 suggest mildly reduced function, 45-59 moderate reduction, 30-44 moderate-severe reduction, 15-29 severe reduction, and below 15 indicates kidney failure. Results may differ from creatinine-based eGFR, and the more accurate value depends on individual factors.","faqs":[{"question":"Why is cystatin C more accurate than creatinine?","answer":"Creatinine levels are influenced by muscle mass, diet (especially protein intake), age, and sex. Cystatin C is produced at a constant rate by all cells and is not affected by these factors, making it more reliable for assessing true kidney function, especially in people with unusual muscle mass."},{"question":"Should I get cystatin C instead of creatinine?","answer":"Standard creatinine-based eGFR is sufficient for most people. Cystatin C is most valuable when creatinine results may be unreliable (athletes, bodybuilders, elderly, very thin individuals), when results are borderline, or when precise kidney function assessment is critical for medication dosing or surgical planning."},{"question":"Can both creatinine and cystatin C be used together?","answer":"Yes, some healthcare providers use equations that combine both creatinine and cystatin C for the most accurate eGFR calculation. This combined approach can be more precise than either marker alone, especially for confirming chronic kidney disease staging."},{"question":"Does cystatin C predict other health risks?","answer":"Research suggests cystatin C may be a better predictor of cardiovascular events and mortality than creatinine-based eGFR, even after accounting for traditional risk factors. Some healthcare providers use it as part of comprehensive cardiovascular risk assessment."}],"relatedTests":["bmp","cmp","uric-acid","microalbumin-creatinine-ratio"],"createdBy":"script","name_es":"Cistatina C con TFGe","biomarkers_es":["Cistatina C","TFGe basado en Cistatina C"],"description_es":"Marcador alternativo de función renal. Más preciso que la creatinina en ciertas poblaciones.","shortName_es":"Cistatina C","whenToTest_es":"No se requiere ayuno. Puede analizarse en cualquier momento del día. Cistatina C es menos afectada por la masa muscular que la creatinina.","longDescription_es":"Cistatina C es una proteína pequeña producida a tasa constante por virtualmente todas las células del cuerpo. Es filtrada libremente por los riñones y luego reabsorbida y degradada - nada regresa a la sangre. Esto la hace un excelente marcador de tasa de filtración renal.\n\nA diferencia de la creatinina, la Cistatina C no está afectada significativamente por la masa muscular, edad, sexo o dieta. Esto la hace más precisa en poblaciones donde la creatinina puede ser engañosa: ancianos, muy musculosos, caquécticos, vegetarianos y amputados.","conditionsScreened_es":["Enfermedad renal crónica","Lesión renal aguda","Estadificación precisa de función renal"],"shortSummary_es":"Un marcador de función renal más preciso que la creatinina en ciertas poblaciones. Cistatina C no está afectada por masa muscular, dieta o género.","whatItMeasures_es":"Esta prueba mide el nivel de Cistatina C, una proteína producida a tasa constante por todas las células nucleadas. Debido a que se filtra libremente por los riñones, es un excelente marcador de función renal.","symptomsAddressed_es":["Evaluación de función renal cuando creatinina no es confiable","Detección temprana de enfermedad renal","Monitoreo de función renal"],"whoIsItFor_es":"Personas donde la creatinina puede ser inexacta (atletas, ancianos, muy musculosos, amputados), aquellos con enfermedad renal temprana, individuos que necesitan estadificación precisa de función renal, y personas que monitorean la progresión de enfermedad renal.","faqs_es":[{"question":"¿Por qué Cistatina C es mejor que creatinina?","answer":"La creatinina está influenciada por la masa muscular, dieta y otros factores. La Cistatina C se produce a tasa constante independientemente de estos factores, proporcionando una estimación más precisa de función renal en muchas personas."},{"question":"¿Debería reemplazar la creatinina?","answer":"Puede usarse sola o en combinación con creatinina (ecuaciones de eGFR combinadas) para estadificación más precisa de ERC. Es particularmente valiosa cuando las estimaciones basadas en creatinina pueden ser inexactas."},{"question":"¿Qué afecta los niveles de Cistatina C?","answer":"Esteroides, disfunción tiroidea y altas dosis de biotina pueden afectar los niveles. Sin embargo, es mucho menos variable que la creatinina para la mayoría de las personas."}],"createdAt":{"_nanoseconds":824000000,"_seconds":1769634722},"cptCode":"82610"},{"id":"c-peptide","questCode":"372","name":"C-Peptide","shortName":"C-Peptide","description":"Measures insulin production by the pancreas. Helps distinguish Type 1 from Type 2 diabetes.","category":"diabetes","price":10,"costPrice":8.33,"fastingRequired":true,"fastingHours":8,"labVendor":"Quest","biomarkers":["C-Peptide"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"C-Peptide Blood Test - $10 | Insulin Production & Diabetes | Justlabs","metaDescription":"Order a C-Peptide blood test for $10. Measures insulin production by the pancreas. Helps distinguish Type 1 from Type 2 diabetes. 8-hour fasting required. Results in 2-3 days.","h1Title":"C-Peptide Blood Test","shortSummary":"C-Peptide is a byproduct of insulin production that provides a reliable measure of how much insulin your pancreas is making, helping to classify diabetes type and assess beta cell function.","longDescription":"C-Peptide is a protein fragment that is released into the bloodstream when the pancreas produces insulin. For every molecule of insulin made, one molecule of C-Peptide is created. Because C-Peptide is cleared from the body more slowly than insulin and is not affected by insulin injections, it provides a more stable and accurate measurement of endogenous (your own) insulin production. This test is particularly valuable for distinguishing between Type 1 diabetes (where insulin production is minimal or absent) and Type 2 diabetes (where insulin may be normal or elevated but less effective). It can also help assess remaining beta cell function in people with diabetes and evaluate unexplained low blood sugar.","whatItMeasures":"This test measures the level of C-Peptide in your blood. C-Peptide levels directly reflect how much insulin your pancreas is producing. Low levels indicate reduced insulin production (as in Type 1 diabetes), while normal or high levels suggest adequate insulin production (as in early Type 2 diabetes or insulin resistance).","whoIsItFor":"People with newly diagnosed diabetes to determine type (Type 1 vs Type 2), those with Type 2 diabetes to assess if insulin therapy is needed, people with hypoglycemia to determine if it is caused by excess insulin production, and individuals with Type 1 diabetes to evaluate remaining beta cell function.","symptomsAddressed":["Classifying diabetes type","Evaluating insulin production capacity","Investigating hypoglycemia causes","Assessing need for insulin therapy","Monitoring beta cell function"],"conditionsScreened":["Type 1 diabetes","Type 2 diabetes","Insulinoma (insulin-producing tumor)","Hypoglycemia evaluation","Beta cell function assessment","Insulin resistance"],"whenToTest":"Fasting for 8-12 hours is required for accurate results. A fasting C-Peptide reflects baseline insulin production. Sometimes a stimulated C-Peptide test (after a meal or glucose drink) may be ordered to assess maximum insulin capacity.","resultsOverview":"Normal fasting C-Peptide levels typically range from 0.5-2.0 ng/mL. Very low or undetectable levels (<0.2 ng/mL) strongly suggest Type 1 diabetes or advanced Type 2 diabetes with beta cell failure. Normal or elevated levels with high blood sugar suggest insulin resistance (Type 2 diabetes). Very high levels may indicate insulinoma or other insulin-secreting conditions.","faqs":[{"question":"Why test C-Peptide instead of insulin?","answer":"C-Peptide testing has several advantages: it is not affected by insulin injections (since C-Peptide only comes from your own insulin production), it has a longer half-life so levels are more stable, and it is not affected by insulin antibodies that can interfere with insulin tests. This makes it a more reliable marker of your pancreas's insulin-producing capacity."},{"question":"Can C-Peptide help determine if I need insulin?","answer":"Yes, in people with Type 2 diabetes, C-Peptide levels can help assess remaining beta cell function. Low levels suggest your pancreas is no longer producing enough insulin and insulin therapy may be needed. Higher levels suggest oral medications may still be effective."},{"question":"What causes very high C-Peptide levels?","answer":"Very high C-Peptide may indicate insulinoma (a rare insulin-producing tumor), Type 2 diabetes with significant insulin resistance (the pancreas overproduces insulin trying to overcome resistance), or kidney disease (which reduces C-Peptide clearance). Clinical context is important for interpretation."},{"question":"Can C-Peptide predict honeymoon phase in Type 1 diabetes?","answer":"Yes, C-Peptide can help assess the \"honeymoon phase\" in newly diagnosed Type 1 diabetes—a period when the pancreas still produces some insulin. Measurable C-Peptide during this time may allow for better blood sugar control with less insulin. As Type 1 diabetes progresses, C-Peptide typically becomes undetectable."}],"relatedTests":["insulin-fasting","hemoglobin-a1c","glucose-fasting","bmp"],"createdBy":"script","name_es":"Péptido C","biomarkers_es":["Péptido C"],"description_es":"Mide la producción endógena de insulina. Ayuda a distinguir diabetes tipo 1 de tipo 2.","shortName_es":"Péptido C","whenToTest_es":"El ayuno es típicamente requerido. También puede hacerse como parte de una prueba de tolerancia a la glucosa. Para mejor interpretación, se mide frecuentemente junto con glucosa en ayunas.","longDescription_es":"El Péptido C es un subproducto de la producción de insulina. Cuando la proinsulina se divide en insulina, el Péptido C se libera en cantidades iguales. A diferencia de la insulina, el Péptido C no es afectado por la insulina inyectada, haciéndolo un marcador más confiable de producción endógena de insulina.\n\nLos niveles de Péptido C ayudan a distinguir entre diabetes tipo 1 (sin producción, Péptido C muy bajo) y diabetes tipo 2 (producción inicial normal o alta, Péptido C normal/alto). También ayuda a evaluar la función residual de células beta en la progresión de diabetes.","conditionsScreened_es":["Clasificación de tipo de diabetes","Insulinoma","Hipoglucemia facticia","Función de células beta"],"shortSummary_es":"Mide cuánta insulina su páncreas está produciendo. Útil para distinguir entre diabetes tipo 1 y tipo 2, y para evaluar la función de células beta.","whatItMeasures_es":"Esta prueba mide el nivel de Péptido C en su sangre, reportado en ng/mL. El Péptido C se produce en cantidades iguales a la insulina, haciéndolo un marcador confiable de producción de insulina del páncreas.","symptomsAddressed_es":["Hipoglucemia inexplicable","Clasificación de diabetes","Monitoreo de función pancreática"],"whoIsItFor_es":"Personas diagnosticadas con diabetes determinando el tipo, aquellos que evalúan la producción de insulina pancreática, individuos con hipoglucemia inexplicable, personas con sospecha de insulinoma, y aquellos que monitorean la función de células beta.","faqs_es":[{"question":"¿Cómo distingue el Péptido C entre diabetes tipo 1 y tipo 2?","answer":"Tipo 1 tiene Péptido C muy bajo/indetectable porque las células beta están destruidas. Tipo 2 típicamente tiene Péptido C normal o alto inicialmente debido a resistencia a la insulina que impulsa la sobreproducción."},{"question":"¿Por qué no solo medir insulina?","answer":"Insulina inyectada afecta los niveles de insulina pero no el Péptido C. En alguien usando insulina, el Péptido C muestra cuánta insulina endógena todavía está produciendo su páncreas."},{"question":"¿Qué es un nivel normal de Péptido C?","answer":"Péptido C en ayunas de 0.8-3.1 ng/mL es típicamente normal. Por debajo de 0.6 ng/mL sugiere producción significativamente reducida. Por encima de normal puede indicar resistencia a la insulina o insulinoma."}],"createdAt":{"_nanoseconds":924000000,"_seconds":1769634722},"cptCode":"84681"},{"id":"fructosamine","questCode":"8340","name":"Fructosamine","shortName":"Fructosamine","description":"Measures short-term blood sugar control (2-3 weeks). Useful when HbA1c may be inaccurate.","category":"diabetes","price":14,"costPrice":12,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Fructosamine"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Fructosamine Test - $14 | 2-3 Week Blood Sugar | Justlabs","metaDescription":"Order a Fructosamine test for $14. Measures your average blood sugar over 2-3 weeks. Ideal alternative to HbA1c. No fasting. Results in 2-3 days.","h1Title":"Fructosamine Blood Test","shortSummary":"Fructosamine measures your average blood sugar over the past 2-3 weeks - a shorter window than HbA1c. It's especially useful when HbA1c may be inaccurate or when you need to see faster changes in glucose control.","longDescription":"Fructosamine is formed when glucose attaches to proteins in your blood, primarily albumin. Because albumin has a shorter lifespan than red blood cells (used for HbA1c), fructosamine reflects average blood sugar over a shorter 2-3 week period rather than 2-3 months.\n\nThis test is particularly valuable in situations where HbA1c may not accurately reflect blood sugar control:\n- Recent changes in diabetes treatment (to see improvement faster)\n- Conditions affecting red blood cell lifespan (sickle cell, hemolytic anemia, recent blood loss)\n- Hemoglobin variants that interfere with HbA1c testing\n- Pregnancy (when blood sugar control can change rapidly)\n\nWhile not a replacement for HbA1c in routine diabetes monitoring, fructosamine fills an important niche for short-term glucose assessment.","whatItMeasures":"This test measures glycated serum proteins (primarily albumin) in your blood, reported in µmol/L. Normal fructosamine is typically 200-285 µmol/L. Levels above this indicate elevated average blood sugar over the past 2-3 weeks.","whoIsItFor":"People with conditions affecting HbA1c accuracy, those needing short-term blood sugar assessment, pregnant women with diabetes, patients who recently changed diabetes treatment and want to see results faster, and anyone with hemoglobin variants.","symptomsAddressed":["Monitoring recent treatment changes","Assessing glucose control in pregnancy","Evaluating blood sugar when HbA1c is unreliable","Short-term diabetes management","Symptoms of high blood sugar"],"conditionsScreened":["Diabetes management","Gestational diabetes monitoring","Treatment effectiveness evaluation","Glucose control in hemoglobin disorders","Short-term glycemic assessment"],"whenToTest":"No fasting required. Can be tested any time. Most useful when ordered alongside or in place of HbA1c for short-term glucose monitoring or when HbA1c accuracy is questionable.","resultsOverview":"Normal fructosamine is typically 200-285 µmol/L. Higher values indicate elevated average blood sugar. Because reference ranges can vary by lab and protein levels, results should be interpreted with clinical context. Abnormally low albumin can affect fructosamine accuracy.","faqs":[{"question":"Why would I need fructosamine instead of HbA1c?","answer":"Fructosamine is useful when HbA1c may be inaccurate: hemoglobin variants (sickle cell, thalassemia), hemolytic anemia, recent blood loss or transfusion, kidney disease, or when you need to assess recent treatment changes within weeks rather than months."},{"question":"Can fructosamine replace HbA1c?","answer":"For most people, HbA1c remains the standard for diabetes monitoring because it reflects a longer time period and has more established clinical guidelines. Fructosamine is a complementary test for specific situations rather than a routine replacement."},{"question":"Why does fructosamine only show 2-3 weeks?","answer":"Fructosamine measures glucose attached to albumin protein, which has a lifespan of about 2-3 weeks. HbA1c measures glucose attached to red blood cells, which live about 120 days. This is why they reflect different time periods."},{"question":"Can protein levels affect my fructosamine result?","answer":"Yes, low albumin (from liver disease, kidney disease, or malnutrition) can cause falsely low fructosamine. High albumin can cause falsely high results. Some labs offer a corrected fructosamine calculation that accounts for protein levels."}],"relatedTests":["hemoglobin-a1c","glucose-fasting","insulin-fasting","albumin-serum"],"createdBy":"script","name_es":"Fructosamina","biomarkers_es":["Fructosamina"],"description_es":"Refleja el control de glucosa durante 2-3 semanas. Alternativa a HbA1c para ciertos pacientes.","shortName_es":"Fructosamina","whenToTest_es":"Se prefiere el ayuno pero no siempre es requerido. Puede analizarse en cualquier momento del día para un resultado razonable.","longDescription_es":"Fructosamina mide la cantidad de proteínas sanguíneas (principalmente albúmina) que se han unido a glucosa (glicación). Debido a que la albúmina tiene una vida más corta que los glóbulos rojos (2-3 semanas vs 3 meses), la fructosamina refleja el control de glucosa más reciente que la HbA1c.\n\nEsto la hace valiosa para monitorear cambios rápidos en el control glucémico, como después de cambios de medicación, y en situaciones donde HbA1c no es confiable debido a hemoglobinopatías, anemia, pérdida de sangre o transfusiones.","conditionsScreened_es":["Control de diabetes","Evaluación de control glucémico a corto plazo","Monitoreo de diabetes gestacional"],"shortSummary_es":"Proporciona una imagen de 2-3 semanas de control de azúcar en sangre, útil cuando HbA1c no es precisa o cuando se necesita monitoreo a más corto plazo.","whatItMeasures_es":"Esta prueba mide proteínas glicadas (principalmente albúmina) en su sangre, reflejando el control promedio de glucosa en sangre durante las 2-3 semanas anteriores. Normal es típicamente 200-285 µmol/L.","symptomsAddressed_es":["Monitoreo de control de azúcar en sangre","Alternativa a HbA1c","Seguimiento de respuesta a tratamiento"],"whoIsItFor_es":"Personas donde HbA1c no es confiable (hemoglobinopatías, anemia), aquellos que necesitan evaluación de control glucémico a corto plazo, individuos monitoreando cambios rápidos de tratamiento, mujeres embarazadas con diabetes, y personas con rotación rápida de glóbulos rojos.","faqs_es":[{"question":"¿Cuándo debería usar fructosamina en lugar de HbA1c?","answer":"Use fructosamina cuando HbA1c puede ser inexacta: rasgo falciforme, anemia, transfusiones recientes, o enfermedad renal. También es útil cuando necesita evaluar cambios de control en semanas en lugar de meses."},{"question":"¿Cómo se convierte fructosamina a HbA1c?","answer":"No hay conversión exacta, pero aproximadamente fructosamina de 317 µmol/L corresponde a HbA1c de 7%. Cada cambio de 25 µmol/L en fructosamina corresponde aproximadamente a 0.5% de cambio en HbA1c."},{"question":"¿Por qué no siempre usar fructosamina?","answer":"HbA1c tiene más datos de investigación vinculándola a resultados. Fructosamina puede verse afectada por condiciones que cambian los niveles de proteínas. HbA1c sigue siendo el estándar cuando es confiable."}],"createdAt":{"_nanoseconds":27000000,"_seconds":1769634723},"cptCode":"82985"},{"id":"herpes-1","questCode":"3636","name":"Herpes Simplex Virus 1 (IgG)","shortName":"Herpes 1","description":"Type-specific test for HSV-1, commonly causing oral herpes (cold sores).","category":"sti","price":10,"costPrice":8.25,"fastingRequired":false,"labVendor":"Quest","biomarkers":["HSV-1 IgG"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Herpes 1 Test - $10 | HSV-1 IgG Blood Test | Justlabs","metaDescription":"Order a Herpes Simplex Virus 1 (HSV-1) IgG blood test for $10. Tests specifically for oral herpes (cold sores). Confidential results in 2-3 days.","h1Title":"Herpes Simplex Virus 1 (HSV-1) IgG Blood Test","shortSummary":"A type-specific blood test that detects IgG antibodies to HSV-1, the virus most commonly associated with oral herpes (cold sores).","longDescription":"The Herpes Simplex Virus 1 IgG test specifically detects antibodies to HSV-1, the type of herpes most commonly associated with oral herpes (cold sores). HSV-1 is extremely common - approximately 50-80% of American adults have been infected.\n\nWhile HSV-1 traditionally causes oral herpes, it can also cause genital herpes through oral-genital contact. Most people acquire HSV-1 during childhood through non-sexual contact like kisses from family members.\n\nMany people with HSV-1 have no symptoms or only occasional mild symptoms. The virus remains dormant in nerve cells and may reactivate periodically, especially during stress, illness, or sun exposure.","whatItMeasures":"This test detects IgG antibodies specific to HSV-1. IgG antibodies indicate past exposure (at least 2-12 weeks prior) and ongoing latent infection. The presence of antibodies does not indicate when infection occurred.","whoIsItFor":"Anyone wanting to know their HSV-1 status, those with recurring cold sores seeking confirmation, people whose partner has oral herpes, and individuals wanting to distinguish between HSV-1 and HSV-2 infection.","symptomsAddressed":["Cold sores on lips","Fever blisters","Tingling before outbreak","Recurring mouth sores","No symptoms (screening)"],"conditionsScreened":["HSV-1 infection","Oral herpes","Genital herpes (HSV-1 can cause genital infections)"],"whenToTest":"No fasting required. Wait at least 12 weeks after potential exposure for most accurate results. Earlier testing may miss recent infections.","resultsOverview":"Results report as positive or negative with an index value. Index <0.90 is negative, 0.90-1.10 is equivocal, >1.10 is positive. A positive result indicates past HSV-1 exposure.","faqs":[{"question":"Can HSV-1 cause genital herpes?","answer":"Yes. HSV-1 can be transmitted to the genital area through oral sex and is now a leading cause of genital herpes, especially in younger people."},{"question":"If I have HSV-1, can I spread it even without symptoms?","answer":"Yes, HSV-1 can be spread through asymptomatic shedding when no visible sores are present. Risk is highest just before, during, and after outbreaks."},{"question":"Should I get tested if I've had cold sores since childhood?","answer":"Testing can confirm HSV-1 infection. This information can be helpful for partners and for distinguishing cold sores from other conditions."},{"question":"How common is HSV-1?","answer":"Very common. The WHO estimates 67% of people under 50 worldwide have HSV-1. In the US, about 50-80% of adults are infected."}],"relatedTests":["syphilis-rpr"],"createdBy":"script","name_es":"Virus del Herpes Simple 1 (IgG)","biomarkers_es":["Anticuerpos IgG VHS-1"],"description_es":"Prueba de anticuerpos para herpes oral (VHS-1). Detecta infección pasada o actual.","shortName_es":"Herpes 1","whenToTest_es":"No se requiere ayuno. Espere al menos 2-12 semanas después de la exposición potencial para que los anticuerpos se desarrollen.","longDescription_es":"HSV-1 es extremadamente común, infectando al 50-80% de adultos. Tradicionalmente causa herpes oral pero es cada vez más responsable de herpes genital, particularmente a través de sexo oral.\n\nEl virus permanece latente en células nerviosas y puede reactivarse, causando brotes. Muchas personas tienen infecciones asintomáticas o muy leves y nunca saben que están infectadas.","conditionsScreened_es":["Herpes oral","Herpes genital (causado por HSV-1)","Estado de HSV-1"],"shortSummary_es":"Detecta anticuerpos contra HSV-1, que típicamente causa herpes oral (fuegos) pero también puede causar herpes genital.","whatItMeasures_es":"Esta prueba detecta específicamente anticuerpos contra HSV-1. Un resultado positivo indica exposición pasada a HSV-1, que puede causar herpes oral o genital.","symptomsAddressed_es":["Fuegos orales recurrentes","Úlceras/ampollas genitales","Conocer el estado de infección"],"whoIsItFor_es":"Personas queriendo conocer su estado específico de HSV-1, aquellos con fuegos orales recurrentes, individuos con parejas que tienen herpes oral, y cualquier persona buscando detección dirigida.","faqs_es":[{"question":"¿HSV-1 positivo significa que tengo fuegos?","answer":"No necesariamente. Muchas personas con HSV-1 nunca tienen síntomas notables o brotes raros. Un anticuerpo positivo solo significa exposición en algún momento."},{"question":"¿Puede HSV-1 causar herpes genital?","answer":"Sí. HSV-1 es ahora una causa significativa de herpes genital, típicamente transmitido a través de sexo oral. El herpes genital por HSV-1 típicamente recurre con menos frecuencia que HSV-2."}],"createdAt":{"_nanoseconds":338000000,"_seconds":1769634723},"cptCode":"86695"},{"id":"hepatitis-b-surface-ab","questCode":"8475","name":"Hepatitis B Surface Antibody","shortName":"Hep B Immunity","description":"Checks immunity to hepatitis B from vaccination or prior infection.","category":"sti","price":16,"costPrice":12.83,"fastingRequired":false,"labVendor":"Quest","biomarkers":["HBsAb"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Hepatitis B Immunity Test - $9 | HBsAb Blood Test | Justlabs","metaDescription":"Order a Hepatitis B Surface Antibody test for $9. Confirms immunity from vaccination or past infection. Results in 1-2 days.","h1Title":"Hepatitis B Surface Antibody (Immunity) Test","shortSummary":"A blood test that detects protective antibodies against Hepatitis B, confirming immunity from vaccination or past infection.","longDescription":"The Hepatitis B Surface Antibody (HBsAb or anti-HBs) test measures whether you have protective antibodies against Hepatitis B virus. These antibodies develop either from successful vaccination or from natural immunity after recovering from infection.\n\nHepatitis B is a serious liver infection that can become chronic, leading to cirrhosis and liver cancer. Vaccination is highly effective at preventing infection, but immunity may wane over time in some people.\n\nThis test is commonly used to verify immunity in healthcare workers, confirm vaccination success, and check immunity status in people who may need a booster shot.","whatItMeasures":"This test measures Hepatitis B surface antibody (HBsAb/anti-HBs) levels in your blood. These protective antibodies are produced either after successful vaccination or after recovering from natural Hepatitis B infection. The test does not indicate current infection.","whoIsItFor":"Healthcare workers requiring proof of immunity, people unsure of their vaccination status, those who completed Hepatitis B vaccination series, people needing to verify immunity before travel or work, and individuals who recovered from past Hepatitis B infection.","symptomsAddressed":["No symptoms - immunity verification test","Confirming vaccination effectiveness"],"conditionsScreened":["Hepatitis B immunity status","Vaccination response confirmation"],"whenToTest":"No fasting required. For post-vaccination testing, wait 1-2 months after completing the vaccine series for accurate results. Can be tested anytime for immunity verification.","resultsOverview":"Results are reported quantitatively in mIU/mL. Values ≥10 mIU/mL indicate immunity/protection. Values <10 mIU/mL suggest no immunity - vaccination or booster may be needed. Higher values indicate stronger immunity.","faqs":[{"question":"What does this test tell me?","answer":"This test tells you if you have protective antibodies against Hepatitis B. It confirms immunity from vaccination or past infection but does not diagnose current infection."},{"question":"What if my result shows no immunity?","answer":"If your result is <10 mIU/mL, you may need Hepatitis B vaccination (if never vaccinated) or a booster dose (if previously vaccinated). Consult your healthcare provider."},{"question":"How long does Hepatitis B immunity last?","answer":"For most people who respond to the vaccine, immunity lasts at least 30 years and likely lifelong. However, some people may have declining antibody levels over time and may benefit from a booster."},{"question":"Is this the same as a Hepatitis B screening test?","answer":"No. This test checks for immunity/protection. To screen for active or chronic Hepatitis B infection, you need Hepatitis B surface antigen (HBsAg) testing, which is different."}],"relatedTests":["hepatic-panel","ggt"],"createdBy":"script","name_es":"Anticuerpo de Superficie de Hepatitis B","biomarkers_es":["Anticuerpo de Superficie HBV"],"description_es":"Mide inmunidad a hepatitis B por vacunación o infección previa.","shortName_es":"Anti-HBs","whenToTest_es":"No se requiere ayuno. Para verificar respuesta a vacuna, analice 1-2 meses después de completar la serie de vacunas.","longDescription_es":"Los anticuerpos de superficie de hepatitis B (anti-HBs) se desarrollan en respuesta a la vacunación o después de la recuperación de infección por hepatitis B. Su presencia indica inmunidad protectora contra el virus.\n\nEsta prueba es diferente de las pruebas que detectan infección activa (antígeno de superficie). Se usa para confirmar que la vacunación fue exitosa o que una infección pasada se resolvió con inmunidad.","conditionsScreened_es":["Estado de inmunidad a hepatitis B","Respuesta a vacuna","Resolución de infección pasada"],"shortSummary_es":"Confirma inmunidad a la hepatitis B por vacunación o infección pasada resuelta. Niveles de anticuerpos por encima de 10 mIU/mL indican protección.","whatItMeasures_es":"Esta prueba mide anticuerpos contra el antígeno de superficie de la hepatitis B. La presencia de estos anticuerpos indica inmunidad al VHB, ya sea por vacunación o infección pasada resuelta.","symptomsAddressed_es":["Verificación de inmunidad","Detección pre-vacunación","Evaluación de exposición ocupacional"],"whoIsItFor_es":"Personas que necesitan verificar inmunidad de vacuna, trabajadores de salud, individuos nacidos en países de alta prevalencia, aquellos con parejas infectadas con VHB, y cualquier persona evaluando protección contra hepatitis B.","faqs_es":[{"question":"¿Qué nivel de anticuerpos es protector?","answer":"Niveles de 10 mIU/mL o más se consideran protectores. Niveles por debajo de 10 mIU/mL pueden requerir revacunación o dosis de refuerzo."},{"question":"¿Cuánto dura la inmunidad de la vacuna?","answer":"Los anticuerpos pueden disminuir con el tiempo, pero la memoria inmune típicamente persiste. La mayoría de las personas que respondieron a la vacuna tienen protección de por vida incluso si los niveles de anticuerpos caen."},{"question":"¿Qué pasa si mis anticuerpos son negativos después de la vacunación?","answer":"Aproximadamente el 5-10% de las personas no responden a la serie estándar. Pueden necesitar una serie repetida o dosis adicionales. Algunos verdaderos no respondedores pueden existir."}],"createdAt":{"_nanoseconds":635000000,"_seconds":1769634723},"cptCode":"86704","preparationInstructions":"Dietary supplements containing biotin may interfere in assays and may skew analyte results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation."},{"id":"syphilis-rpr","questCode":"36126","name":"Syphilis Screen (RPR)","shortName":"Syphilis","description":"Rapid Plasma Reagin test for syphilis screening. Positive results require confirmation.","category":"sti","price":6,"costPrice":3.61,"fastingRequired":false,"labVendor":"Quest","biomarkers":["RPR"],"turnaroundDays":"1","sampleTypes":["serum"],"metaTitle":"Syphilis Test (RPR) - $6 | STI Screening | Justlabs","metaDescription":"Order a Syphilis RPR screening test for $6. Confidential STI testing with fast results. No fasting required. Results in 1 day.","h1Title":"Syphilis Screen (RPR) Blood Test","shortSummary":"The RPR (Rapid Plasma Reagin) test is a screening blood test for syphilis. This sexually transmitted infection is curable when caught early but can cause serious health problems if left untreated.","longDescription":"Syphilis is a sexually transmitted infection (STI) caused by the bacterium Treponema pallidum. It progresses through stages (primary, secondary, latent, tertiary) and can cause serious complications if untreated, including damage to the heart, brain, and other organs.\n\nThe RPR (Rapid Plasma Reagin) test detects antibodies that your body produces in response to cellular damage caused by the syphilis bacteria. It's a nontreponemal test, meaning it doesn't detect the bacteria directly but rather your body's reaction to infection.\n\nKey points about syphilis and RPR testing:\n- Syphilis is highly treatable with antibiotics when caught early\n- The infection can be silent (no symptoms) for years\n- Pregnant women are routinely screened because syphilis can be passed to babies\n- If RPR is positive, a confirmatory treponemal test is required\n- RPR can also be used to monitor treatment response (titers decrease with successful treatment)","whatItMeasures":"This test detects reagin antibodies in your blood that are produced in response to syphilis infection. Results are reported as reactive (positive) or nonreactive (negative). Reactive results include a titer (1:1, 1:2, 1:4, etc.) indicating antibody concentration.","whoIsItFor":"Anyone who is sexually active and has not been recently tested, people with new sexual partners, those with symptoms of syphilis (sores, rash, flu-like symptoms), pregnant women, individuals with other STIs (co-infection is common), and anyone exposed to someone with syphilis.","symptomsAddressed":["Painless sores (chancre)","Skin rash (especially palms and soles)","Flu-like symptoms","Swollen lymph nodes","Hair loss (patchy)","Mucous membrane lesions","No symptoms (screening)"],"conditionsScreened":["Primary syphilis","Secondary syphilis","Latent syphilis","Congenital syphilis screening (pregnancy)","STI panel component"],"whenToTest":"No fasting required. Test 3-6 weeks after potential exposure (this is the window period before antibodies develop). If initial test is negative but exposure is suspected, repeat in 3 months. Pregnant women should be tested at first prenatal visit.","resultsOverview":"Nonreactive (negative) = No current infection detected. Reactive (positive) = Requires confirmatory testing. A reactive RPR can indicate current infection, past treated infection, or rarely a false positive. Titer levels help distinguish active infection from past exposure and monitor treatment.","faqs":[{"question":"What if my RPR is positive?","answer":"A reactive RPR requires confirmatory testing with a treponemal test (like FTA-ABS or TP-PA). If confirmed, syphilis is easily treated with penicillin. Your healthcare provider will discuss treatment and partner notification. Follow-up testing monitors treatment success."},{"question":"Can RPR have false positives?","answer":"Yes, false positive RPR can occur with pregnancy, autoimmune diseases (lupus), other infections, IV drug use, or recent vaccination. This is why positive RPR results always require confirmatory testing with a different type of syphilis test."},{"question":"How long after exposure can syphilis be detected?","answer":"The RPR window period is typically 3-6 weeks after exposure. Testing too early may give a false negative. If you had a recent exposure and test negative, repeat testing in 3 months is recommended."},{"question":"Will RPR remain positive after treatment?","answer":"Treponemal tests (confirmatory tests) usually stay positive for life even after successful treatment. RPR titers typically decline after treatment and may eventually become negative, though this can take months to years. Rising titers may indicate reinfection."}],"relatedTests":["hiv-antibody","hepatitis-b-surface-antibody","hepatitis-c","hsv-1-2-igg"],"createdBy":"script","name_es":"Detección de Sífilis (RPR)","biomarkers_es":["RPR"],"description_es":"Prueba de detección para infección por sífilis usando el método de Reagina Plasmática Rápida.","shortName_es":"RPR Sífilis","whenToTest_es":"No se requiere ayuno. Los anticuerpos típicamente se desarrollan 3-6 semanas después de la infección. Si es positivo, se necesitan pruebas confirmatorias.","longDescription_es":"El RPR (Reagina Plasmática Rápida) es una prueba de detección no treponémica para sífilis. Detecta anticuerpos contra material de daño celular causado por la bacteria de la sífilis, no la bacteria en sí.\n\nUn RPR positivo (reactivo) requiere confirmación con una prueba treponémica (como FTA-ABS o TP-PA) ya que pueden ocurrir falsos positivos con embarazo, enfermedades autoinmunes y otras condiciones. El título de RPR puede usarse para monitorear la respuesta al tratamiento.","conditionsScreened_es":["Sífilis","Detección de ITS"],"shortSummary_es":"Prueba de detección para sífilis. Un resultado reactivo requiere confirmación con prueba treponémica, ya que RPR puede tener resultados falsos positivos.","whatItMeasures_es":"Esta prueba detecta anticuerpos que el cuerpo produce en respuesta a la infección por sífilis. Un resultado positivo indica infección actual o pasada, aunque pueden ocurrir falsos positivos.","symptomsAddressed_es":["Llagas genitales o bucales indoloras","Erupción (especialmente en palmas/plantas)","Detección de ITS","Exposición de pareja"],"whoIsItFor_es":"Personas sexualmente activas que desean detección de ITS, aquellos con parejas nuevas o múltiples, individuos con síntomas de sífilis, mujeres embarazadas, y cualquier persona con factores de riesgo para ITS.","faqs_es":[{"question":"¿Por qué necesito una prueba de confirmación?","answer":"RPR es una prueba de detección que puede tener falsos positivos. Las pruebas treponémicas son más específicas y confirman si realmente está presente la sífilis."},{"question":"¿Qué puede causar falsos positivos?","answer":"Embarazo, enfermedades autoinmunes, otras infecciones, y uso de drogas IV pueden causar resultados falsos positivos de RPR."},{"question":"¿Se puede curar la sífilis?","answer":"¡Sí! La sífilis se trata fácilmente con penicilina, especialmente en etapas tempranas. El tratamiento temprano previene complicaciones serias de sífilis avanzada."}],"createdAt":{"_nanoseconds":712000000,"_seconds":1769634723},"cptCode":"86592"},{"id":"heavy-metals-panel","questCode":"7655","name":"Heavy Metals Panel (Blood)","shortName":"Heavy Metals","description":"Tests for lead, mercury, and arsenic. Useful for exposure concerns or unexplained symptoms.","category":"general","price":35,"costPrice":30,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Lead","Mercury","Arsenic"],"turnaroundDays":"5-7","sampleTypes":["whole-blood"],"metaTitle":"Heavy Metals Panel - $35 | Lead, Mercury, Arsenic Test | Justlabs","metaDescription":"Order a Heavy Metals Panel for $35. Tests for lead, mercury, and arsenic in your blood. Detects toxic metal exposure. No fasting. Results in 5-7 days.","h1Title":"Heavy Metals Panel Blood Test","shortSummary":"This panel tests for three common toxic heavy metals - lead, mercury, and arsenic - that can accumulate in the body from environmental exposure, contaminated food or water, and occupational hazards.","longDescription":"Heavy metals are naturally occurring elements that can be toxic to humans even at low levels. This panel screens for three of the most clinically significant heavy metals:\n\n**Lead** - Once used widely in paint, gasoline, and plumbing, lead exposure still occurs through old paint in homes, contaminated soil, certain occupations, and imported goods. Lead is particularly dangerous to developing brains in children.\n\n**Mercury** - Exposure primarily comes from fish consumption (especially large predatory fish like tuna, swordfish, and shark), dental amalgam fillings, and certain occupational settings. Mercury affects the nervous system.\n\n**Arsenic** - Found in contaminated groundwater (especially private wells), rice products, some seafood, and occupational exposures. Chronic exposure is linked to cancer, cardiovascular disease, and neurological effects.\n\nThis blood test measures recent exposure. For long-term exposure assessment, hair or urine testing may also be recommended.","whatItMeasures":"This panel measures the concentration of lead, mercury, and arsenic in your blood. Lead is reported in µg/dL (normal <5 µg/dL for adults), mercury in µg/L (normal <10 µg/L), and arsenic in µg/L (normal <12 µg/L for blood). Results reflect recent exposure.","whoIsItFor":"People with suspected heavy metal exposure, those with unexplained neurological symptoms, workers in high-risk occupations (construction, mining, battery manufacturing), people with contaminated water concerns, high fish consumers, and anyone living in older homes with lead paint.","symptomsAddressed":["Fatigue and weakness","Memory problems or confusion","Numbness or tingling","Abdominal pain","Headaches","Joint or muscle pain","Mood changes","Tremors","Nausea","Difficulty concentrating"],"conditionsScreened":["Lead poisoning","Mercury toxicity","Arsenic exposure","Occupational metal exposure","Environmental contamination","Chronic heavy metal accumulation"],"whenToTest":"No fasting required. Blood tests reflect recent exposure (weeks to months). For suspected chronic or past exposure, urine or hair testing may be more appropriate. Avoid eating fish for 48 hours before testing if mercury is the primary concern.","resultsOverview":"Normal blood lead is <5 µg/dL (no safe level for children). Normal blood mercury is <10 µg/L. Normal blood arsenic is <12 µg/L. Any elevation warrants investigation of exposure sources and possible retesting. Significantly elevated levels require medical evaluation and potential chelation therapy.","faqs":[{"question":"How do people get exposed to heavy metals?","answer":"Lead: old paint, contaminated soil, some pottery and imported goods. Mercury: fish (especially large predatory fish), dental amalgams, broken thermometers. Arsenic: contaminated well water, rice products, certain seafood. Occupational exposure affects workers in construction, mining, and manufacturing."},{"question":"Can heavy metals be removed from the body?","answer":"The body slowly eliminates heavy metals over time once exposure stops. For significant poisoning, chelation therapy uses medications that bind to metals and help the body excrete them faster. This is medical treatment requiring supervision."},{"question":"Is this the same as the hair heavy metals test?","answer":"No, blood tests show recent exposure while hair tests can show exposure patterns over months. Blood is preferred for acute exposure or current body burden. Hair testing is useful for long-term exposure patterns but can be affected by external contamination."},{"question":"Should I avoid seafood before the test?","answer":"Eating fish 24-48 hours before testing can elevate mercury levels. If you're concerned about baseline mercury exposure, avoid seafood for 2 days before testing. However, if you want to assess your typical exposure including diet, test without special preparation."}],"relatedTests":["cbc-diff","bmp","iron-panel","zinc"],"createdBy":"script","name_es":"Panel de Metales Pesados (Sangre)","biomarkers_es":["Plomo","Mercurio","Arsénico","Cadmio"],"description_es":"Analiza la exposición a metales tóxicos incluyendo plomo, mercurio, arsénico y cadmio.","shortName_es":"Metales Pesados","whenToTest_es":"No se requiere ayuno. Evite mariscos por 48-72 horas antes de la prueba (afecta el mercurio). Para pruebas de orina, puede solicitarse una recolección de 24 horas.","longDescription_es":"Los metales pesados pueden acumularse en el cuerpo con el tiempo desde fuentes ambientales, ocupacionales, dietéticas o de hobbies. Incluso niveles bajos de exposición crónica pueden causar problemas de salud.\n\nLos metales comúnmente analizados incluyen:\n- Plomo: exposición por pintura antigua, tuberías, ocupacional\n- Mercurio: exposición por pescado, amalgamas dentales, industrial\n- Arsénico: exposición por agua, arroz, madera tratada\n- Cadmio: exposición por humo de cigarrillo, ocupacional, baterías","conditionsScreened_es":["Toxicidad por plomo","Envenenamiento por mercurio","Exposición a arsénico","Toxicidad por cadmio"],"shortSummary_es":"Detecta niveles de metales pesados tóxicos que pueden acumularse en el cuerpo y causar una variedad de problemas de salud con exposición prolongada.","whatItMeasures_es":"Este panel mide niveles de metales pesados tóxicos en sangre u orina, típicamente incluyendo plomo, mercurio, arsénico y cadmio. Los niveles se reportan en mcg/L o mcg/dL dependiendo del metal.","symptomsAddressed_es":["Fatiga inexplicable","Problemas cognitivos","Neuropatía","Síntomas gastrointestinales","Exposición ocupacional"],"whoIsItFor_es":"Personas con sospecha de exposición (ocupacional, ambiental), aquellos con síntomas inexplicables compatibles con toxicidad por metales, individuos que viven en casas antiguas o áreas contaminadas, consumidores de pescado frecuentes, y personas con hobbies que involucran metales.","faqs_es":[{"question":"¿Cuáles son los síntomas de toxicidad por metales pesados?","answer":"Los síntomas varían por metal pero pueden incluir fatiga, dolores de cabeza, problemas de memoria, entumecimiento/hormigueo, problemas digestivos, y con exposición severa, daño de órganos."},{"question":"¿Son precisas las pruebas de sangre?","answer":"La sangre refleja exposición reciente. Para exposición pasada o acumulación crónica, pueden ser más apropiadas pruebas de orina provocadas (después de quelación) o análisis de cabello."},{"question":"¿Se puede tratar la toxicidad por metales pesados?","answer":"Sí. Eliminar la fuente de exposición es primordial. La terapia de quelación puede usarse para casos significativos para ayudar al cuerpo a excretar metales acumulados."}],"createdAt":{"_nanoseconds":913000000,"_seconds":1769634723},"cptCode":"82175, 83655, 83825"},{"id":"vitamin-a","questCode":"921","name":"Vitamin A (Retinol)","shortName":"Vitamin A","description":"Measures vitamin A levels. Important for vision, immune function, and skin health.","category":"vitamin","price":39,"costPrice":32,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Vitamin A"],"turnaroundDays":"3-5","sampleTypes":["serum"],"metaTitle":"Vitamin A Blood Test - $39 | Retinol Levels | Justlabs","metaDescription":"Order a Vitamin A (retinol) blood test for $39. Important for vision, immune function, and skin health. Identify deficiency or toxicity. Results in 3-5 days.","h1Title":"Vitamin A (Retinol) Blood Test","shortSummary":"Vitamin A is a fat-soluble vitamin essential for vision (especially night vision), immune function, skin health, cell growth, and reproduction.","longDescription":"Vitamin A refers to a group of fat-soluble compounds including retinol, retinal, and retinoic acid. It plays irreplaceable roles in vision—particularly night vision and color perception—immune system function, skin cell turnover, bone growth, and reproductive health. Vitamin A is also a powerful antioxidant.\n\nUnlike water-soluble vitamins, vitamin A is stored in the liver and can accumulate to toxic levels with excessive intake. This makes testing valuable to ensure you're in the optimal range—neither deficient nor at risk of toxicity.\n\nDietary vitamin A comes in two forms: preformed vitamin A (retinol) from animal sources like liver, fish, eggs, and dairy; and provitamin A carotenoids (like beta-carotene) from colorful fruits and vegetables that your body converts to retinol. This test measures retinol, the active form circulating in your blood.","whatItMeasures":"This test measures retinol (vitamin A) concentration in your blood serum. Normal levels typically range from 28-86 mcg/dL. Levels below 20 mcg/dL indicate deficiency, while levels above 100 mcg/dL may suggest toxicity risk.","whoIsItFor":"People with night blindness or vision changes, those with dry skin, eyes, or recurrent infections, individuals with malabsorption conditions (celiac, Crohn's, cystic fibrosis), people who've had gastric bypass surgery, those taking high-dose vitamin A supplements or using retinoid medications, and people with liver disease.","symptomsAddressed":["Night blindness","Dry eyes","Dry, rough, or scaly skin","Frequent infections","Slow wound healing","Acne or skin problems","Hair loss","Impaired growth (children)"],"conditionsScreened":["Vitamin A deficiency","Vitamin A toxicity (hypervitaminosis A)","Malabsorption disorders","Liver disease evaluation","Night blindness workup","Xerophthalmia (dry eye)"],"whenToTest":"Fasting for 8-12 hours is recommended as recent fat intake can affect levels. Avoid vitamin A supplements for 24 hours before testing for baseline assessment.","resultsOverview":"Normal vitamin A is 28-86 mcg/dL. Low levels indicate deficiency requiring supplementation and investigation of underlying causes. High levels (>100 mcg/dL) may indicate toxicity risk, especially with continued supplementation. Chronic toxicity can cause liver damage, bone problems, and birth defects.","faqs":[{"question":"What's the difference between vitamin A and beta-carotene?","answer":"Retinol (vitamin A) is the active form your body uses directly. Beta-carotene is a provitamin found in plants that your body converts to retinol as needed. You cannot develop vitamin A toxicity from beta-carotene alone—conversion is self-limiting. However, very high beta-carotene intake can cause harmless orange skin discoloration."},{"question":"Can vitamin A supplements be dangerous?","answer":"Yes, vitamin A toxicity is possible because it's fat-soluble and stored in the liver. Chronic intake above 10,000 IU/day can cause toxicity over time, with symptoms including headaches, nausea, skin changes, bone pain, and liver damage. Pregnant women should avoid high-dose vitamin A due to birth defect risk."},{"question":"Why might someone be deficient in vitamin A?","answer":"Common causes include inadequate dietary intake (rare in developed countries), fat malabsorption conditions (celiac, Crohn's, pancreatic insufficiency, cystic fibrosis), gastric bypass surgery, liver disease, and zinc deficiency (zinc is needed to release vitamin A from liver stores)."},{"question":"Is vitamin A the same as Accutane/isotretinoin?","answer":"Isotretinoin (Accutane) is a synthetic retinoid derived from vitamin A, used for severe acne. Taking vitamin A supplements while on isotretinoin is dangerous due to additive toxicity risk. If you're on retinoid medications, discuss any supplementation with your provider."}],"relatedTests":["zinc","vitamin-d","vitamin-e","hepatic-function-panel","cmp"],"name_es":"Vitamina A (Retinol)","biomarkers_es":["Retinol"],"description_es":"Mide los niveles de vitamina A. Importante para visión, función inmune y salud de la piel.","shortName_es":"Vitamina A","whenToTest_es":"Se requiere ayuno de 8-12 horas. Los niveles pueden variar con la ingesta reciente, por lo que el ayuno proporciona resultados más consistentes.","longDescription_es":"La vitamina A es una vitamina liposoluble esencial para la visión, función inmune, reproducción y comunicación celular. Se encuentra en alimentos animales (retinol) y plantas (como betacaroteno, que el cuerpo convierte).\n\nDebido a que la vitamina A es liposoluble, puede acumularse en el cuerpo. La suplementación excesiva puede causar toxicidad, que es potencialmente seria. Los síntomas de deficiencia incluyen ceguera nocturna, piel seca y mayor susceptibilidad a infecciones.","conditionsScreened_es":["Deficiencia de vitamina A","Toxicidad por vitamina A","Trastornos de malabsorción","Enfermedad hepática"],"shortSummary_es":"Mide los niveles sanguíneos de vitamina A, esencial para la visión, función inmune y salud de la piel. Tanto niveles muy bajos como muy altos pueden ser problemáticos.","whatItMeasures_es":"Esta prueba mide el nivel de retinol (vitamina A activa) en su sangre. Los niveles normales son típicamente 20-60 mcg/dL. Tanto la deficiencia como la toxicidad pueden causar problemas de salud.","symptomsAddressed_es":["Ceguera nocturna","Piel seca","Infecciones frecuentes","Cabello seco/quebradizo","Sospecha de toxicidad"],"whoIsItFor_es":"Personas con problemas de visión nocturna, aquellos con enfermedades de malabsorción, individuos que toman suplementos de vitamina A de dosis alta, personas con enfermedad hepática, y aquellos con piel o cabello secos inexplicables.","faqs_es":[{"question":"¿Puedo tomar demasiada vitamina A?","answer":"Sí. A diferencia de las vitaminas hidrosolubles, la vitamina A puede acumularse a niveles tóxicos. El límite superior es 10,000 UI/día para adultos. Los síntomas de toxicidad incluyen dolores de cabeza, náuseas, daño hepático y defectos de nacimiento."},{"question":"¿El betacaroteno también puede ser tóxico?","answer":"No, el betacaroteno de los alimentos no es tóxico porque el cuerpo solo convierte lo que necesita. Sin embargo, la ingesta alta puede volver la piel anaranjada (carotenemia), que es inofensivo."},{"question":"¿Qué causa la deficiencia de vitamina A?","answer":"Mala ingesta dietética, malabsorción de grasas (enfermedad celíaca, fibrosis quística, enfermedad hepática), o cirugía bariátrica. Es rara en países desarrollados con dietas adecuadas."}],"cptCode":"84590"},{"id":"vitamin-b6","questCode":"926","name":"Vitamin B6","shortName":"Vitamin B6","description":"Measures pyridoxine levels. Essential for brain function, metabolism, and immune health.","category":"vitamin","price":42,"costPrice":36.71,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Vitamin B6"],"turnaroundDays":"3-5","sampleTypes":["plasma"],"metaTitle":"Vitamin B6 Blood Test - $42 | Pyridoxine Levels | Justlabs","metaDescription":"Order a Vitamin B6 (pyridoxine) blood test for $42. Essential for brain function, metabolism, and immune health. Identify deficiency or toxicity. Results in 3-5 days.","h1Title":"Vitamin B6 (Pyridoxine) Blood Test","shortSummary":"Vitamin B6 is essential for over 100 enzyme reactions, particularly protein metabolism, neurotransmitter synthesis, immune function, and hemoglobin production.","longDescription":"Vitamin B6 (pyridoxine) is a water-soluble vitamin that serves as a cofactor for more than 100 enzymes involved in protein metabolism, red blood cell formation, and neurotransmitter synthesis. It's essential for producing serotonin, dopamine, and GABA—brain chemicals that regulate mood, sleep, and cognitive function.\n\nB6 also plays crucial roles in immune function, hemoglobin synthesis (oxygen-carrying protein in blood), and converting stored glycogen to glucose for energy. It works closely with B12 and folate in homocysteine metabolism, and adequate B6 helps keep homocysteine levels in check.\n\nWhile deficiency is relatively uncommon in people eating varied diets, certain populations are at risk, including older adults, people with autoimmune disorders, those with kidney disease, and individuals taking certain medications. Notably, B6 toxicity from excessive supplementation can cause peripheral neuropathy—a concern that makes testing valuable for those supplementing.","whatItMeasures":"This test measures pyridoxal 5'-phosphate (PLP), the active form of vitamin B6, in your blood plasma. Normal levels typically range from 5-50 ng/mL. Levels below 5 ng/mL indicate deficiency, while chronically elevated levels from supplementation may cause toxicity.","whoIsItFor":"People with peripheral neuropathy symptoms, those taking high-dose B6 supplements (for nausea, PMS, carpal tunnel), individuals with autoimmune conditions (especially rheumatoid arthritis), people with kidney disease, older adults with poor nutrition, anyone with anemia not responding to iron, and those on medications that deplete B6.","symptomsAddressed":["Peripheral neuropathy (numbness, tingling)","Confusion or difficulty concentrating","Depression or irritability","Weakened immune function","Cracked, sore lips (cheilosis)","Swollen, sore tongue","Skin rashes","Anemia symptoms (fatigue, weakness)"],"conditionsScreened":["B6 deficiency","B6 toxicity (from over-supplementation)","Anemia evaluation","Peripheral neuropathy workup","Homocysteine metabolism assessment","Medication-induced deficiency"],"whenToTest":"No fasting required. B6 supplements should be stopped for 24-48 hours before testing for accurate baseline results. Inform your provider about all supplements you take.","resultsOverview":"Normal B6 (PLP) is 5-50 ng/mL. Low levels indicate deficiency requiring supplementation and investigation of causes. Very low levels can cause anemia and neurological symptoms. High levels (>100 ng/mL) from chronic supplementation above 100mg/day can paradoxically cause sensory neuropathy.","faqs":[{"question":"Can vitamin B6 supplements cause nerve damage?","answer":"Yes, chronic high-dose B6 supplementation (typically >100mg/day for months) can cause sensory peripheral neuropathy with numbness and tingling, usually in hands and feet. This is reversible if supplementation is stopped early. The tolerable upper limit is 100mg/day for adults."},{"question":"Why is B6 often recommended for nausea in pregnancy?","answer":"B6 (10-25mg, 3 times daily) is a first-line treatment for pregnancy nausea because it's effective and has a long safety record. However, high doses should be avoided. If you're taking B6 for nausea, stay within recommended doses and discuss with your provider."},{"question":"What medications can lower B6 levels?","answer":"Several medications deplete B6 including isoniazid (tuberculosis treatment), hydralazine (blood pressure), penicillamine (rheumatoid arthritis), and certain anti-seizure medications. If you take these medications, periodic B6 monitoring may be recommended."},{"question":"Should I supplement B6 for mood or sleep?","answer":"B6 is needed to make serotonin and melatonin, so correcting deficiency can improve mood and sleep. However, if you're not deficient, supplementing likely won't help and may cause harm at high doses. Test first to determine if supplementation is appropriate."}],"relatedTests":["vitamin-b12","folate-serum","homocysteine","cbc-diff","cmp"],"createdBy":"script","name_es":"Vitamina B6","biomarkers_es":["Vitamina B6"],"description_es":"Mide los niveles de vitamina B6. Esencial para metabolismo de proteínas, función nerviosa y producción de hemoglobina.","shortName_es":"B6","whenToTest_es":"Se prefiere el ayuno pero no siempre es requerido. Evite suplementos de B6 por 24 horas antes para niveles basales.","longDescription_es":"La vitamina B6 es una vitamina hidrosoluble involucrada en más de 100 reacciones enzimáticas, principalmente relacionadas con el metabolismo de proteínas. Juega roles cruciales en la función del sistema nervioso, formación de glóbulos rojos, respuesta inmune y síntesis de neurotransmisores.\n\nLa deficiencia puede causar neuropatía periférica, anemia, confusión y sistema inmune debilitado. Sin embargo, el exceso de suplementación también puede causar neuropatía. Dosis superiores a 100 mg/día a largo plazo pueden ser neurotóxicas.","conditionsScreened_es":["Deficiencia de vitamina B6","Toxicidad por vitamina B6","Neuropatía periférica","Anemia inexplicable"],"shortSummary_es":"Mide los niveles de vitamina B6, esencial para el metabolismo de proteínas, función del sistema nervioso, función inmune y formación de hemoglobina.","whatItMeasures_es":"Esta prueba mide el nivel de vitamina B6 (como piridoxal-5-fosfato, la forma activa) en su sangre. Los niveles normales son típicamente 5-50 ng/mL.","symptomsAddressed_es":["Entumecimiento/hormigueo","Confusión","Depresión","Anemia","Problemas de piel"],"whoIsItFor_es":"Personas con neuropatía periférica, aquellos con anemia que no responde al hierro, individuos que toman medicamentos que agotan B6, personas con malabsorción, y aquellos con síntomas de deficiencia.","faqs_es":[{"question":"¿Qué medicamentos agotan B6?","answer":"Varios medicamentos interfieren con B6: isoniazida, hidralazina, penicilamina, anticonvulsivos, y anticonceptivos orales. La suplementación puede ser necesaria con uso a largo plazo."},{"question":"¿Puede B6 causar daño nervioso?","answer":"Paradójicamente, sí. Mientras que la deficiencia causa neuropatía, el exceso (típicamente >200 mg/día a largo plazo) también puede causar neuropatía periférica. El equilibrio es clave."},{"question":"¿Cuáles son los síntomas de deficiencia de B6?","answer":"Neuropatía periférica (entumecimiento/hormigueo), anemia, confusión, depresión, sistema inmune debilitado, y lesiones cutáneas alrededor de boca y ojos."}],"createdAt":{"_nanoseconds":12000000,"_seconds":1769634724},"cptCode":"84207"},{"id":"coq10","questCode":"19826","name":"Coenzyme Q10","shortName":"CoQ10","description":"Measures CoQ10 levels important for cellular energy production. Often depleted by statin medications.","category":"vitamin","price":52,"costPrice":48.26,"fastingRequired":false,"labVendor":"Quest","biomarkers":["CoQ10"],"turnaroundDays":"5-7","sampleTypes":["serum"],"metaTitle":"CoQ10 Blood Test - $52 | Coenzyme Q10 Levels | Justlabs","metaDescription":"Order a Coenzyme Q10 (CoQ10) blood test for $52. Essential for cellular energy production. Important for statin users and heart health. Results in 5-7 days.","h1Title":"Coenzyme Q10 (CoQ10) Blood Test","shortSummary":"Coenzyme Q10 (CoQ10) is a vital antioxidant that supports cellular energy production in every cell of your body, particularly in the heart, liver, and kidneys.","longDescription":"Coenzyme Q10 (CoQ10), also known as ubiquinone, is a naturally occurring compound essential for cellular energy production. It plays a critical role in the mitochondria—the powerhouses of your cells—where it helps convert food into ATP (adenosine triphosphate), the energy currency your body uses for every function.\n\nBeyond energy production, CoQ10 serves as a powerful antioxidant, protecting cells from oxidative damage caused by free radicals. It's particularly concentrated in organs with high energy demands like the heart, liver, kidneys, and muscles.\n\nCoQ10 levels naturally decline with age, typically peaking in your 20s and decreasing significantly after age 40. Additionally, statin medications, commonly prescribed for cholesterol management, can deplete CoQ10 levels by 20-40% because they block the same pathway the body uses to produce CoQ10. This depletion may contribute to statin-related muscle pain and fatigue experienced by some patients.\n\nTesting CoQ10 levels helps identify deficiency, guide supplementation decisions, and optimize your cellular energy and antioxidant status. This is especially important for individuals on statin therapy, those with heart conditions, chronic fatigue, or anyone interested in supporting their cellular health.","whatItMeasures":"This test measures the total concentration of Coenzyme Q10 in your blood serum. CoQ10 exists in two forms: ubiquinone (oxidized) and ubiquinol (reduced), and this test provides your total CoQ10 level which reflects your body's overall CoQ10 status and availability for cellular energy production.","whoIsItFor":"Anyone taking statin medications for cholesterol management, individuals with heart conditions or heart failure, people experiencing unexplained fatigue or muscle weakness, those with mitochondrial disorders, older adults concerned about age-related CoQ10 decline, athletes and active individuals optimizing cellular energy, and anyone interested in their antioxidant and cellular health status.","symptomsAddressed":["Muscle pain or weakness (especially with statin use)","Chronic fatigue or low energy","Shortness of breath with exertion","Brain fog or cognitive issues","Exercise intolerance","Heart palpitations","Slow recovery after physical activity","General weakness"],"conditionsScreened":["CoQ10 deficiency","Statin-related myopathy","Heart failure","Mitochondrial dysfunction","Chronic fatigue syndrome","Fibromyalgia","Parkinson's disease","Cardiovascular disease"],"whenToTest":"No fasting is required for this test. Blood can be drawn at any time of day. If you take CoQ10 supplements, testing is typically done in the morning before your daily dose to measure baseline levels. For accurate monitoring, try to test at consistent times.","resultsOverview":"Results show your CoQ10 concentration in micrograms per milliliter (mcg/mL). Normal reference ranges typically fall between 0.5-1.5 mcg/mL, though optimal levels for therapeutic benefit may be higher (1.0-2.5 mcg/mL), especially for heart health. Levels below 0.5 mcg/mL suggest deficiency that may benefit from supplementation. Your healthcare provider will interpret results in the context of your medications, symptoms, and health goals.","faqs":[{"question":"Why should statin users test CoQ10 levels?","answer":"Statin medications block HMG-CoA reductase, an enzyme involved in both cholesterol and CoQ10 production. This can reduce CoQ10 levels by 20-40%, potentially contributing to muscle pain, weakness, and fatigue—common statin side effects. Testing helps identify if supplementation could alleviate these symptoms."},{"question":"Can low CoQ10 cause fatigue?","answer":"Yes, CoQ10 is essential for ATP production—your cells' energy source. When levels are low, cells, particularly in high-energy organs like muscles and the heart, may not function optimally, leading to fatigue, weakness, and reduced exercise tolerance."},{"question":"Should I stop CoQ10 supplements before testing?","answer":"Discuss with your healthcare provider. Testing before your daily supplement dose gives a baseline measure. Some providers recommend stopping supplements for 1-2 weeks before testing to assess your natural production, while others prefer testing on supplements to ensure therapeutic levels."},{"question":"What's the difference between CoQ10 and ubiquinol?","answer":"CoQ10 (ubiquinone) and ubiquinol are two forms of the same compound. Ubiquinol is the active, reduced form that your body uses directly. Your body converts ubiquinone to ubiquinol as needed. This test measures total CoQ10, which includes both forms."}],"relatedTests":["lipid-panel","cmp","cbc-diff","crp-hs"],"createdBy":"script","name_es":"Coenzima Q10","biomarkers_es":["Coenzima Q10"],"description_es":"Antioxidante importante para producción de energía celular y salud cardíaca. A menudo disminuido por estatinas.","shortName_es":"CoQ10","whenToTest_es":"Se prefiere el ayuno de 12 horas. Si toma suplementos de CoQ10, puede analizar después de la dosis (para ver el pico) o antes (para el nivel mínimo), dependiendo del propósito.","longDescription_es":"La Coenzima Q10 es una sustancia parecida a una vitamina que se encuentra en cada célula del cuerpo. Juega un rol crucial en la producción de ATP (energía celular) en las mitocondrias y actúa como un poderoso antioxidante.\n\nLos niveles de CoQ10 disminuyen naturalmente con la edad. Ciertos medicamentos, particularmente las estatinas, pueden agotar significativamente los niveles de CoQ10 al bloquear la misma vía que produce colesterol. Esto puede contribuir a los efectos secundarios musculares asociados con el uso de estatinas.","conditionsScreened_es":["Agotamiento de CoQ10 por estatinas","Trastornos mitocondriales","Insuficiencia cardíaca","Estado de energía"],"shortSummary_es":"Mide los niveles de Coenzima Q10, crucial para la producción de energía y defensa antioxidante. Las estatinas pueden agotar CoQ10.","whatItMeasures_es":"Esta prueba mide el nivel de Coenzima Q10 (ubiquinona) en su sangre. CoQ10 es esencial para la producción de energía celular y actúa como un poderoso antioxidante.","symptomsAddressed_es":["Fatiga","Debilidad muscular","Dolores musculares relacionados con estatinas","Baja energía"],"whoIsItFor_es":"Personas que toman medicamentos con estatinas, aquellos con fatiga inexplicable, individuos con insuficiencia cardíaca, personas con trastornos mitocondriales, y aquellos interesados en niveles de energía y envejecimiento.","faqs_es":[{"question":"¿Las estatinas realmente agotan CoQ10?","answer":"Sí. Las estatinas bloquean la HMG-CoA reductasa, que está involucrada tanto en la síntesis de colesterol como de CoQ10. Estudios muestran que las estatinas pueden reducir los niveles de CoQ10 en 40% o más."},{"question":"¿Debería tomar CoQ10 si estoy en estatinas?","answer":"Muchos expertos recomiendan la suplementación con CoQ10 para usuarios de estatinas, especialmente aquellos que experimentan dolor muscular. Los estudios muestran beneficio mixto para los síntomas musculares, pero el perfil de seguridad es excelente."},{"question":"¿Cuál es un buen nivel de CoQ10?","answer":"Los niveles óptimos no están definitivamente establecidos. Generalmente, niveles superiores a 0.6-1.0 mcg/mL se consideran adecuados. Algunos practicantes apuntan a niveles más altos para beneficios terapéuticos."}],"createdAt":{"_nanoseconds":103000000,"_seconds":1769634724},"cptCode":"82542"},{"id":"oxldl","questCode":"92769","name":"Oxidized LDL","shortName":"OxLDL","description":"Measures oxidized LDL, a more atherogenic form of LDL that contributes to plaque formation.","category":"cardiovascular","price":22,"costPrice":18.06,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Oxidized LDL"],"turnaroundDays":"3-5","sampleTypes":["serum"],"longDescription":"Oxidized LDL (OxLDL) is LDL cholesterol that has been damaged by free radicals (oxidation). This modified form of LDL is significantly more dangerous than regular LDL because:\n\n1. **It penetrates artery walls more easily** and gets trapped, starting the atherosclerosis process\n2. **It triggers inflammation** - macrophages engulf oxidized LDL, becoming foam cells that form plaque\n3. **It damages the endothelium** (artery lining), making vessels more susceptible to disease\n\nStandard lipid panels only measure total LDL quantity, not quality. Two people with identical LDL levels can have very different cardiovascular risk based on how much of that LDL is oxidized.\n\nOxidized LDL is influenced by inflammation, antioxidant status, blood sugar control, and lifestyle factors - making it a modifiable risk factor.","symptomsAddressed":["Cardiovascular risk assessment","Family history of heart disease","Metabolic syndrome evaluation","Monitoring lifestyle interventions"],"shortSummary":"Measures oxidized LDL - the dangerous, modified form of LDL cholesterol that directly causes arterial plaque buildup. More predictive of heart disease than standard LDL alone.","whoIsItFor":"Anyone wanting a deeper assessment of cardiovascular risk beyond standard cholesterol testing. Especially valuable for people with \"normal\" LDL but other risk factors, family history of premature heart disease, metabolic syndrome or prediabetes (associated with higher oxidized LDL), chronic inflammation, or those monitoring the effectiveness of dietary and lifestyle interventions.","whenToTest":"No fasting required, though some providers prefer fasting for consistency with lipid panel. Best tested alongside a complete lipid panel for context. For monitoring interventions, retest after 3-6 months of dietary/lifestyle changes or antioxidant supplementation.","conditionsScreened":["Atherosclerosis risk","Oxidative stress","Cardiovascular disease risk","Metabolic syndrome"],"faqs":[{"question":"Why test oxidized LDL if I already know my LDL cholesterol?","answer":"Standard LDL-C measures quantity, not quality. Only oxidized LDL particles are directly atherogenic (cause plaque). Two people with LDL of 120 mg/dL could have vastly different cardiovascular risk depending on oxidation levels. This test adds important risk stratification beyond standard cholesterol."},{"question":"What causes LDL to become oxidized?","answer":"Oxidative stress from inflammation, high blood sugar, smoking, poor diet (seed oils, sugar), and insufficient antioxidants. Small, dense LDL particles (from metabolic syndrome) are more susceptible to oxidation than large, fluffy LDL particles."},{"question":"How can I lower my oxidized LDL?","answer":"Increase antioxidants (colorful vegetables, berries, olive oil, dark chocolate), improve blood sugar control, exercise regularly, reduce seed/vegetable oil consumption, eat fatty fish (omega-3s reduce oxidation), and consider supplements like vitamin E, CoQ10, or lipoic acid if levels are high."},{"question":"Should I stop taking antioxidants before the test?","answer":"No - continue your normal supplement routine. The goal is to see your actual oxidized LDL levels on your current regimen. If you are taking antioxidants and OxLDL is still high, you may need additional interventions."},{"question":"How does oxidized LDL relate to inflammation markers like hs-CRP?","answer":"They are complementary markers. hs-CRP measures systemic inflammation. Oxidized LDL measures a consequence of that inflammation on cholesterol particles. Testing both gives a more complete cardiovascular risk picture. Often both are elevated together."}],"h1Title":"Oxidized LDL (OxLDL) - Advanced Cardiovascular Risk Test","resultsOverview":"**Oxidized LDL below 60 U/L:**\nOptimal. Your LDL has low oxidation levels, reducing atherogenic risk.\n\n**Oxidized LDL 60-69 U/L:**\nModerate. Some oxidative stress present. Consider increasing antioxidants (colorful vegetables, berries, olive oil), improving blood sugar control, and reducing inflammatory triggers.\n\n**Oxidized LDL ≥70 U/L:**\nElevated. Higher risk of LDL contributing to plaque formation. Focus on reducing oxidative stress through diet (Mediterranean pattern), exercise, blood sugar optimization, and possibly targeted antioxidant support.\n\n**Key insight:** High oxidized LDL with normal LDL-C suggests your cholesterol quantity is fine but quality is poor - focus on antioxidants and inflammation, not just lowering LDL.","preparationInstructions":"No special preparation required. For best comparison with lipid panel results, consider fasting for 9-12 hours. Continue any medications as prescribed. Note any antioxidant supplements you take (vitamin E, C, CoQ10) as these may affect results.","whatItMeasures":"This test measures **oxidized LDL** in U/L:\n\n- **Low (optimal)**: <60 U/L - Low cardiovascular risk from LDL oxidation\n- **Moderate**: 60-69 U/L - Some oxidative stress present\n- **High**: ≥70 U/L - Elevated oxidized LDL, increased atherosclerosis risk\n\nResults are best interpreted alongside standard lipid panel, inflammatory markers (hs-CRP), and other cardiovascular risk factors.","relatedTests":["lipid-panel","hscrp","apolipoprotein-b","homocysteine"],"relatedPanels":["panel-heart-health","panel-inflammation"],"name_es":"LDL Oxidado","biomarkers_es":["LDL Oxidado"],"description_es":"Mide el LDL dañado por oxidación. Marcador de estrés oxidativo y riesgo de aterosclerosis.","shortName_es":"LDL-ox","whenToTest_es":"Se recomienda ayuno de 12 horas. El LDL oxidado puede elevarse después de las comidas, por lo que el ayuno proporciona resultados más consistentes.","longDescription_es":"Cuando las partículas de LDL se oxidan (se dañan por los radicales libres), se vuelven más peligrosas. El LDL oxidado es absorbido más fácilmente por los macrófagos en las paredes arteriales, formando las células espumosas que constituyen la placa aterosclerótica.\n\nAltos niveles de LDL oxidado indican mayor estrés oxidativo y riesgo cardiovascular elevado, independiente de los niveles de colesterol LDL. Los factores que aumentan el LDL oxidado incluyen tabaquismo, diabetes, inflamación, alta ingesta de grasas trans, y baja ingesta de antioxidantes.","conditionsScreened_es":["Riesgo cardiovascular avanzado","Estrés oxidativo","Aterosclerosis"],"shortSummary_es":"Mide el LDL dañado que es más propenso a formar placa arterial. Es un marcador de estrés oxidativo y riesgo cardiovascular avanzado.","whatItMeasures_es":"Esta prueba mide el LDL oxidado, una forma de colesterol LDL que ha sido dañado por los radicales libres. El LDL oxidado es más aterogénico (causante de placa) que el LDL normal.","symptomsAddressed_es":["Evaluación de riesgo cardíaco","Evaluación de síndrome metabólico","Monitoreo del estilo de vida"],"whoIsItFor_es":"Personas evaluando riesgo cardiovascular avanzado, aquellos con antecedentes familiares de enfermedad cardíaca, individuos con síndrome metabólico, personas que monitorean los efectos de intervenciones de estilo de vida, y aquellos interesados en estrés oxidativo.","faqs_es":[{"question":"¿Por qué importa el LDL oxidado si mi LDL es normal?","answer":"Puede tener LDL normal pero alto LDL oxidado, lo que significa que su LDL es más peligroso. El LDL oxidado contribuye directamente a la formación de placa, mientras que el LDL no oxidado es menos aterogénico."},{"question":"¿Cómo puedo reducir el LDL oxidado?","answer":"Dietas ricas en antioxidantes (frutas, verduras), ejercicio, dejar de fumar, control de azúcar en sangre, y suplementos de omega-3 pueden ayudar a reducir la oxidación del LDL."},{"question":"¿Es esta mejor prueba que el LDL estándar?","answer":"Es complementaria, no un reemplazo. LDL oxidado proporciona información sobre la calidad de sus partículas de LDL, mientras que el LDL estándar mide cantidad. Ambos son útiles para la evaluación de riesgo."}],"cptCode":"83520","metaTitle":"Oxidized LDL Test - $22 | Advanced Heart Risk Marker | Justlabs","metaDescription":"Order an Oxidized LDL (OxLDL) test for $22. Measures the most atherogenic form of cholesterol that directly contributes to plaque formation. Results in 3-5 days."},{"id":"estrone","questCode":"23244","name":"Estrone (E1)","shortName":"Estrone","description":"Measures estrone, the primary estrogen in menopause. Important for hormone balance assessment.","category":"hormone","price":22,"costPrice":20,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Estrone"],"turnaroundDays":"2-3","sampleTypes":["serum"],"metaTitle":"Estrone (E1) Test - $22 | Menopause Estrogen Test | Justlabs","metaDescription":"Order an Estrone (E1) blood test for $22. Measure the primary estrogen in postmenopausal women for hormone therapy monitoring. Results in 2-3 days.","h1Title":"Estrone (E1) Blood Test","shortSummary":"Estrone (E1) is the predominant estrogen in postmenopausal women, produced mainly by fat tissue. Testing E1 is essential for evaluating hormone status after menopause and monitoring hormone replacement therapy.","longDescription":"Estrone (E1) is one of three naturally occurring estrogens, alongside estradiol (E2) and estriol (E3). While estradiol dominates during reproductive years, estrone becomes the primary estrogen after menopause when ovarian function declines.\n\nAfter menopause, estrone is primarily produced through conversion of androstenedione (an adrenal hormone) in fat tissue. This is why postmenopausal women with higher body fat often have higher estrone levels. Estrone is a weaker estrogen than estradiol but can still have significant effects on the body.\n\nTesting estrone is particularly valuable for postmenopausal women, especially those on hormone replacement therapy, to ensure appropriate hormone levels. It's also important for evaluating estrogen-related conditions and assessing cancer risk in postmenopausal women.\n\nUnlike estradiol which fluctuates throughout the menstrual cycle, estrone levels are relatively stable in postmenopausal women, making it easier to interpret results.","whatItMeasures":"This test measures estrone (E1) concentration in pg/mL. In postmenopausal women, typical levels range from 10-60 pg/mL. Premenopausal women may have levels of 30-200 pg/mL depending on cycle phase. Men typically have levels of 10-60 pg/mL.","whoIsItFor":"Postmenopausal women evaluating hormone status, women on hormone replacement therapy needing monitoring, those assessing estrogen-related cancer risk, individuals with unexplained postmenopausal bleeding, and anyone requiring comprehensive hormone evaluation.","symptomsAddressed":["Menopausal symptoms","Hot flashes","Vaginal dryness","Mood changes","Bone density concerns","Postmenopausal bleeding","Fatigue","Sleep disturbances"],"conditionsScreened":["Menopause status","Hormone imbalance","Estrogen dominance","Breast cancer risk assessment","Endometrial cancer risk","Osteoporosis","Ovarian function","Adrenal function"],"whenToTest":"No fasting required. Postmenopausal women can test anytime as levels are relatively stable. For premenopausal women, early follicular phase (days 2-5) provides the most consistent baseline.","resultsOverview":"Postmenopausal women typically have estrone levels of 10-60 pg/mL. Elevated levels may indicate excess fat tissue conversion, ovarian tumors, or exogenous estrogen intake. Low levels may suggest adrenal insufficiency. Results should be interpreted with estradiol levels for a complete picture.","faqs":[{"question":"Why is estrone important after menopause?","answer":"After menopause, the ovaries stop producing estradiol, making estrone the primary estrogen. It's produced mainly in fat tissue and provides weak but ongoing estrogen effects that influence bone health, cardiovascular function, and cancer risk."},{"question":"What's the difference between estrone and estradiol?","answer":"Estradiol (E2) is the most potent estrogen and dominates during reproductive years. Estrone (E1) is weaker and becomes primary after menopause. Both can be tested together for comprehensive hormone evaluation."},{"question":"Can high estrone increase cancer risk?","answer":"Elevated estrone levels in postmenopausal women may be associated with increased risk of estrogen-sensitive cancers. This is one reason why obesity (which increases estrone production) is a cancer risk factor."},{"question":"Should I test estrone if I'm on HRT?","answer":"Yes. Testing estrone (along with estradiol) helps ensure your hormone replacement therapy is achieving appropriate levels and can guide dosage adjustments for optimal benefits and safety."}],"relatedTests":["estradiol","fsh","lh","progesterone"],"createdBy":"script","name_es":"Estrona (E1)","biomarkers_es":["Estrona"],"description_es":"Una de las tres formas principales de estrógeno. Predominante después de la menopausia.","shortName_es":"Estrona","whenToTest_es":"No se requiere ayuno. Para mujeres premenopáusicas, el momento del ciclo puede afectar los resultados. Para mujeres posmenopáusicas, puede analizarse en cualquier momento.","longDescription_es":"La estrona (E1) es una de las tres formas principales de estrógeno, junto con estradiol (E2) y estriol (E3). Mientras que el estradiol es el estrógeno predominante en mujeres premenopáusicas, la estrona se vuelve la forma primaria después de la menopausia.\n\nLa estrona es producida principalmente en el tejido adiposo (grasa) por conversión de andrógenos. Por eso las mujeres obesas posmenopáusicas tienen niveles más altos de estrona. Los niveles elevados de estrona pueden contribuir al riesgo de cáncer de mama y de endometrio en mujeres posmenopáusicas.","conditionsScreened_es":["Estado posmenopáusico de estrógeno","Evaluación de riesgo de cáncer de mama","Evaluación de riesgo de cáncer de endometrio","Trastornos de dominio de estrógeno"],"shortSummary_es":"Mide la estrona, el estrógeno primario en mujeres posmenopáusicas. Es producida principalmente por el tejido adiposo a partir de andrógenos.","whatItMeasures_es":"Esta prueba mide el nivel de estrona (E1) en su sangre. La estrona es una de las tres principales formas de estrógeno, predominante después de la menopausia.","symptomsAddressed_es":["Síntomas posmenopáusicos","Sangrado uterino anormal","Evaluación hormonal"],"whoIsItFor_es":"Mujeres posmenopáusicas evaluando el estado de estrógeno, aquellas con síntomas de dominio de estrógeno, personas investigando sangrado uterino anormal, individuos evaluando metabolismo hormonal, y aquellos en terapia hormonal.","faqs_es":[{"question":"¿Por qué la estrona importa después de la menopausia?","answer":"Después de la menopausia, los ovarios dejan de producir estradiol, pero el tejido adiposo continúa convirtiendo andrógenos a estrona. Esto se convierte en la fuente principal de estrógeno y es importante para la evaluación de riesgo de cáncer de mama."},{"question":"¿La obesidad afecta la estrona?","answer":"Sí, significativamente. El tejido adiposo convierte andrógenos a estrona. Las mujeres obesas posmenopáusicas tienen niveles más altos de estrona, lo que puede aumentar el riesgo de cáncer de mama y útero."},{"question":"¿Debería analizar estrona o estradiol?","answer":"Depende de su etapa de vida. Mujeres premenopáusicas típicamente analizan estradiol. Mujeres posmenopáusicas pueden beneficiarse de analizar estrona ya que es la forma predominante."}],"createdAt":{"_nanoseconds":189000000,"_seconds":1769634724},"cptCode":"82679"},{"id":"lyme-disease","questCode":"8593","name":"Lyme Disease Antibody","shortName":"Lyme Disease","description":"Screens for Lyme disease antibodies. Recommended after tick bite or with symptoms like fatigue, joint pain, rash.","category":"autoimmune","price":16,"costPrice":13.89,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Lyme IgG","Lyme IgM"],"turnaroundDays":"3-5","sampleTypes":["serum"],"longDescription":"Lyme disease is caused by the bacterium *Borrelia burgdorferi*, transmitted through the bite of infected blacklegged ticks (deer ticks). It is the most common tick-borne illness in North America and Europe.\n\nThis test detects antibodies (IgM and IgG) your immune system produces in response to the infection. Early detection and treatment with antibiotics is crucial - untreated Lyme can progress to affect joints, the heart, and the nervous system.\n\n**The classic \"bull's-eye\" rash (erythema migrans) only appears in about 70-80% of cases**, making blood testing important for diagnosis, especially when the rash is absent or atypical.\n\n**Testing timing matters:** Antibodies take 2-6 weeks to develop after infection. Testing too early may give false negatives. If initial test is negative but symptoms persist, retesting in 2-4 weeks is recommended.","symptomsAddressed":["Tick bite","Bull's-eye rash","Fatigue","Joint pain","Muscle aches","Fever","Headache","Facial paralysis","Numbness or tingling","Swollen lymph nodes"],"shortSummary":"Screens for antibodies to Borrelia burgdorferi, the bacteria that causes Lyme disease. Important for anyone with tick exposure or unexplained symptoms like fatigue, joint pain, or neurological issues.","whoIsItFor":"Anyone with known or suspected tick bite, especially in endemic areas (Northeast, Mid-Atlantic, Upper Midwest). People with symptoms suggestive of Lyme disease: expanding rash, flu-like symptoms, joint pain, facial palsy, or neurological symptoms. Those with unexplained chronic fatigue, arthritis, or neurological issues who live in or have traveled to tick-endemic regions.","whenToTest":"Test 2-6 weeks after suspected tick exposure or symptom onset. Testing immediately after a bite is not useful - antibodies have not yet developed. If you have the classic bull's-eye rash, treatment should begin immediately without waiting for test results. Retest in 2-4 weeks if initial test is negative but clinical suspicion remains high.","conditionsScreened":["Lyme disease","Early localized Lyme","Early disseminated Lyme","Late Lyme disease","Post-treatment Lyme disease syndrome"],"metaDescription":"Order a Lyme Disease antibody test. Screens for Borrelia burgdorferi infection. Recommended if you have had a tick bite or symptoms like fatigue, joint pain, or rash.","relatedPanels":["panel-autoimmune-screen","panel-inflammation"],"faqs":[{"question":"How soon after a tick bite should I get tested?","answer":"Wait at least 2 weeks, ideally 4-6 weeks after the bite or symptom onset. Testing too early (within days of a bite) will likely be negative because your body has not yet produced detectable antibodies. If you develop the characteristic rash, start treatment immediately without waiting for test results."},{"question":"Can this test tell if my Lyme disease is cured?","answer":"No. Antibodies can remain positive for months or even years after successful treatment. A positive test does not mean you still have active infection. Post-treatment monitoring relies on symptom resolution, not repeat antibody testing."},{"question":"What if my test is negative but I still have symptoms?","answer":"False negatives can occur, especially if tested too early. If clinical suspicion is high (tick exposure, endemic area, compatible symptoms), your doctor may retest in 2-4 weeks, try empiric antibiotic treatment, or consider other tick-borne co-infections like Anaplasmosis or Babesiosis."},{"question":"I found a tick on me - should I get tested right away?","answer":"Not immediately. Most tick bites do not transmit Lyme (the tick must be attached for 36-48 hours). Monitor for symptoms for 30 days. If you develop a rash, fever, or flu-like symptoms, see a doctor promptly. Prophylactic antibiotics within 72 hours of a high-risk bite may be recommended in some cases."},{"question":"Does this test detect other tick-borne diseases?","answer":"No, this test is specific to Lyme disease (Borrelia burgdorferi). Other tick-borne infections like Anaplasmosis, Babesiosis, Ehrlichiosis, and Rocky Mountain Spotted Fever require separate tests. In endemic areas, co-infection is possible and additional testing may be warranted."}],"metaTitle":"Lyme Disease Test - $29 | Antibody Screening | Justlabs","h1Title":"Lyme Disease Antibody Test","resultsOverview":"**Negative:** No antibodies detected. If tested within 6 weeks of exposure and symptoms persist, consider retesting.\n\n**Positive/Reactive:** Antibodies detected - indicates current or past Lyme infection. Does not distinguish between active infection and successfully treated past infection, as antibodies can persist for months to years.\n\n**Equivocal/Indeterminate:** Borderline result - typically requires repeat testing in 2-4 weeks.\n\n**Important:** A positive test in someone without symptoms or exposure history may be a false positive. Clinical correlation is essential - test results should always be interpreted alongside symptoms and exposure history.","preparationInstructions":"No fasting or special preparation required. Inform your healthcare provider of any tick bites, travel to endemic areas, and when symptoms started. Note: recent infections, autoimmune conditions, or other spirochetal infections can occasionally cause false positives.","whatItMeasures":"This test uses a two-tier testing approach recommended by the CDC:\n\n**First tier - Screening (EIA/ELISA):**\n- Detects IgM and IgG antibodies to Borrelia burgdorferi\n- Highly sensitive but may have false positives\n\n**Second tier - Confirmatory (if screening positive):**\n- Western blot testing for specific antibody bands\n- IgM Western blot: Positive if 2 of 3 specific bands present\n- IgG Western blot: Positive if 5 of 10 specific bands present\n\n**IgM antibodies** appear first (1-2 weeks) and indicate recent/acute infection\n**IgG antibodies** appear later (4-6 weeks) and persist longer","name_es":"Anticuerpos de Enfermedad de Lyme","biomarkers_es":["Anticuerpos IgM de Lyme","Anticuerpos IgG de Lyme"],"description_es":"Prueba de detección para infección por Borrelia burgdorferi (enfermedad de Lyme).","shortName_es":"Lyme","whenToTest_es":"No se requiere ayuno. Los anticuerpos tardan 2-6 semanas en desarrollarse después de la infección. Las pruebas demasiado tempranas pueden dar resultados falsos negativos.","longDescription_es":"La enfermedad de Lyme es causada por la bacteria Borrelia burgdorferi, transmitida a través de picaduras de garrapatas de venado infectadas. Es más común en el noreste, medio atlántico, y norte del centro-oeste de EE.UU.\n\nLas pruebas de anticuerpos usan un enfoque de dos niveles: primero una prueba de detección ELISA, luego si es positiva o dudosa, una prueba de confirmación Western blot. Este enfoque reduce los resultados falsos positivos.\n\nLa enfermedad de Lyme temprana a menudo presenta la erupción característica de ojo de buey (eritema migrans), pero no todos los pacientes desarrollan esta erupción. Otros síntomas incluyen fiebre, fatiga, dolores de cabeza y dolores musculares/articulares.","conditionsScreened_es":["Enfermedad de Lyme","Artritis de Lyme","Neuroborreliosis"],"shortSummary_es":"Detecta anticuerpos indicando infección por enfermedad de Lyme. Se requieren pruebas de dos niveles (ELISA seguido de Western blot) para confirmación.","whatItMeasures_es":"Esta prueba detecta anticuerpos contra Borrelia burgdorferi, la bacteria que causa la enfermedad de Lyme. Los anticuerpos IgM aparecen temprano en la infección, mientras que los anticuerpos IgG se desarrollan más tarde.","symptomsAddressed_es":["Erupción de ojo de buey","Fiebre y fatiga después de picadura de garrapata","Artritis migratoria","Síntomas neurológicos inexplicables","Parálisis de Bell"],"whoIsItFor_es":"Personas con sospecha de picadura de garrapata o erupción de ojo de buey, aquellos con síntomas compatibles con Lyme, individuos en áreas endémicas de Lyme, personas con artritis inexplicable o síntomas neurológicos, y aquellos que evalúan enfermedad de Lyme pasada.","faqs_es":[{"question":"¿Con qué rapidez puedo hacerme la prueba después de una picadura de garrapata?","answer":"Los anticuerpos tardan 2-6 semanas en desarrollarse. Las pruebas inmediatamente después de una picadura serán negativas incluso si está infectado. Si tiene síntomas, un médico puede tratar empíricamente mientras espera que los anticuerpos se desarrollen."},{"question":"¿Qué es el enfoque de dos niveles?","answer":"Primero se hace una prueba ELISA. Si es positiva o dudosa, se hace un Western blot para confirmar. Esto reduce los falsos positivos. Ambas pruebas deben ser positivas para un diagnóstico confirmado."},{"question":"¿Puede la enfermedad de Lyme causar problemas a largo plazo?","answer":"Si se trata temprano, la mayoría de las personas se recuperan completamente. La enfermedad de Lyme no tratada puede causar artritis, síntomas neurológicos y problemas cardíacos. Algunos pacientes experimentan síntomas persistentes después del tratamiento (síndrome post-Lyme)."}],"cptCode":"86617","relatedTests":["cbc-diff","sed-rate","ana-titer-pattern","rheumatoid-factor"]},{"id":"amylase","questCode":"243","name":"Amylase","shortName":"Amylase","description":"Measures amylase enzyme levels to evaluate pancreatic function and detect pancreatitis or other pancreatic disorders.","category":"metabolic","price":11,"costPrice":6.74,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Amylase"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Amylase Blood Test - $11 | Pancreatic Function | JustLabs","metaDescription":"Order an Amylase blood test for $11. Evaluate pancreatic function and screen for pancreatitis. No fasting required. Results in 1-2 days. No doctor visit needed.","h1Title":"Amylase Blood Test - Pancreatic Enzyme","shortSummary":"Amylase is a digestive enzyme produced primarily by the pancreas and salivary glands. Elevated levels can indicate pancreatitis, pancreatic disorders, or other digestive conditions.","longDescription":"Amylase is an enzyme that breaks down starches into sugars during digestion. While it's produced by both the pancreas and salivary glands, blood amylase levels primarily reflect pancreatic function.\n\nWhen the pancreas is inflamed or damaged (as in pancreatitis), amylase leaks into the bloodstream, causing elevated levels. Amylase typically rises within 6-12 hours of acute pancreatitis onset and returns to normal within 3-5 days.\n\nThis test is commonly ordered alongside lipase for a more complete picture of pancreatic health. While amylase is less specific to the pancreas than lipase (it can also rise with salivary gland issues), it remains a valuable marker for pancreatic disorders.","whatItMeasures":"This test measures the level of amylase enzyme in your blood, reported in U/L (units per liter). Normal amylase levels typically range from 30-110 U/L, though reference ranges may vary slightly by laboratory. Elevated levels suggest pancreatic inflammation or damage.","whoIsItFor":"Anyone experiencing upper abdominal pain (especially after eating), nausea, vomiting, or symptoms of pancreatitis. Also useful for monitoring chronic pancreatitis, evaluating digestive issues, and as part of comprehensive metabolic screening.","symptomsAddressed":["Upper abdominal pain","Pain radiating to back","Nausea","Vomiting","Abdominal tenderness","Fever","Rapid pulse","Loss of appetite","Indigestion"],"conditionsScreened":["Acute pancreatitis","Chronic pancreatitis","Pancreatic pseudocyst","Pancreatic duct obstruction","Salivary gland disorders","Intestinal obstruction","Peptic ulcer disease"],"whenToTest":"No fasting required. Can be tested anytime. For suspected acute pancreatitis, test as soon as possible - amylase rises within hours of onset. Best tested alongside lipase for comprehensive pancreatic evaluation.","preparationInstructions":"No special preparation needed. However, inform your provider about any medications you're taking, as some drugs can affect amylase levels (including aspirin, birth control pills, and certain diuretics).","resultsOverview":"Normal amylase: 30-110 U/L. Levels 3+ times normal strongly suggest acute pancreatitis. Mildly elevated levels may indicate chronic pancreatitis, salivary gland issues, or other GI conditions. Very low levels are rare but may occur with pancreatic insufficiency.","faqs":[{"question":"What causes high amylase levels?","answer":"The most common cause is acute pancreatitis. Other causes include chronic pancreatitis, salivary gland inflammation (mumps, stones), intestinal obstruction, peptic ulcers, and certain medications. Kidney disease can also elevate amylase since it's cleared by the kidneys."},{"question":"Should I test amylase or lipase?","answer":"For pancreatic disorders, lipase is generally more specific and stays elevated longer. However, testing both provides the most complete picture. Amylase may catch some conditions that lipase misses, and vice versa."},{"question":"How quickly does amylase rise in pancreatitis?","answer":"Amylase typically rises within 6-12 hours of acute pancreatitis onset, peaks at 24-48 hours, and returns to normal within 3-5 days. Lipase rises slightly later but stays elevated longer (up to 2 weeks)."},{"question":"Can amylase be elevated without pancreatitis?","answer":"Yes. Elevated amylase can occur with salivary gland problems, intestinal issues, kidney disease, and certain medications. That's why lipase is often tested alongside amylase - lipase is more specific to the pancreas."}],"relatedTests":["lipase","cmp","hepatic-panel","hs-crp"],"relatedPanels":["panel-pancreatic-enzymes","panel-pancreatic-comprehensive"],"createdBy":"script","name_es":"Amilasa","biomarkers_es":["Amilasa"],"whenToTest_es":"No se requiere ayuno. Analizar lo antes posible si se sospecha pancreatitis aguda - la amilasa se eleva dentro de 6-12 horas de la aparición de síntomas. Sin embargo, porque regresa a lo normal rápidamente, puede no detectar pancreatitis si la prueba se hace varios días después de la aparición.","metaDescription_es":"Ordena una prueba de Amilasa por $10. Marcador de elevación rápida para pancreatitis aguda. No requiere ayuno. Resultados en 1-2 días.","h1Title_es":"Prueba de Amilasa","metaTitle_es":"Prueba de Amilasa - $10 | Marcador de Enzima Pancreática | Justlabs","shortName_es":"Amilasa","symptomsAddressed_es":["Dolor abdominal superior severo","Dolor que se irradia hacia la espalda","Náuseas y vómitos","Hinchazón de glándulas salivales","Fiebre con dolor abdominal"],"whoIsItFor_es":"Cualquiera que experimente dolor abdominal agudo (especialmente dolor superior que se irradia hacia la espalda), náuseas, vómitos, o síntomas sospechosos de pancreatitis. También útil para monitorear pancreatitis crónica y evaluar problemas de glándulas salivales.","resultsOverview_es":"La amilasa normal es 30-110 U/L. Niveles 3+ veces lo normal sugieren fuertemente pancreatitis. Elevaciones moderadas pueden ocurrir con otras condiciones. A diferencia de la lipasa, la amilasa también puede elevarse por problemas de glándulas salivales, haciéndola menos específica para pancreatitis.","longDescription_es":"La amilasa es una enzima que descompone los carbohidratos complejos en azúcares simples. Se produce en dos lugares principales: el páncreas (amilasa pancreática) y las glándulas salivales (amilasa salival).\n\nCuando el páncreas se inflama, la amilasa se libera al torrente sanguíneo, causando niveles elevados. Esto hace que la amilasa sea un marcador útil para pancreatitis aguda, aunque es menos específica que la lipasa porque también puede elevarse por problemas de glándulas salivales u otras condiciones abdominales.\n\nLa amilasa se eleva rápidamente (dentro de 6-12 horas) durante la pancreatitis aguda pero también regresa a lo normal más rápidamente (3-5 días) que la lipasa. Por eso a menudo se analiza junto con la lipasa para la detección más confiable.","conditionsScreened_es":["Pancreatitis aguda","Pancreatitis crónica","Parotitis (paperas)","Trastornos de glándulas salivales","Obstrucción intestinal","Úlcera perforada"],"description_es":"Enzima digestiva que descompone carbohidratos. Elevada en pancreatitis y trastornos de glándulas salivales.","shortSummary_es":"La amilasa es una enzima digestiva producida principalmente por el páncreas y las glándulas salivales. Se eleva rápidamente durante la pancreatitis aguda, típicamente dentro de 6-12 horas.","whatItMeasures_es":"Esta prueba mide la amilasa total en suero, reportada en U/L. Los niveles normales típicamente varían de 30-110 U/L. Niveles 3 o más veces lo normal sugieren fuertemente pancreatitis aguda.","faqs_es":[{"question":"¿Por qué se analiza la amilasa junto con la lipasa?","answer":"La amilasa se eleva más rápido pero es menos específica del páncreas. La lipasa es más específica y permanece elevada más tiempo. Analizar ambas juntas proporciona la detección más confiable de pancreatitis independientemente del momento."},{"question":"¿Puede la amilasa estar elevada sin pancreatitis?","answer":"Sí, la amilasa también puede elevarse por problemas de glándulas salivales, obstrucción intestinal, úlceras perforadas o enfermedad renal. Esta es la razón por la que la lipasa se considera más específica para pancreatitis."},{"question":"¿Por cuánto tiempo permanece elevada la amilasa?","answer":"La amilasa típicamente regresa a lo normal dentro de 3-5 días después de la pancreatitis aguda, más rápido que la lipasa (8-14 días). Si la prueba se hace tarde, la amilasa puede ser normal mientras la lipasa permanece elevada."}],"createdAt":{"_nanoseconds":281000000,"_seconds":1769634724},"cptCode":"82150"},{"id":"lipase","questCode":"606","name":"Lipase","shortName":"Lipase","description":"Measures lipase enzyme levels to evaluate pancreatic function. The most specific marker for pancreatitis and pancreatic disorders.","category":"metabolic","price":13,"costPrice":8.5,"fastingRequired":false,"labVendor":"Quest","biomarkers":["Lipase"],"turnaroundDays":"1-2","sampleTypes":["serum"],"metaTitle":"Lipase Blood Test - $13 | Pancreatitis Screening | JustLabs","metaDescription":"Order a Lipase blood test for $13. The gold standard for detecting pancreatitis and pancreatic disorders. No fasting required. Results in 1-2 days.","h1Title":"Lipase Blood Test - Pancreatic Function","shortSummary":"Lipase is the most specific blood marker for pancreatic disorders. Produced almost exclusively by the pancreas, elevated lipase is the gold standard for diagnosing pancreatitis.","longDescription":"Lipase is a digestive enzyme produced by the pancreas that breaks down fats (triglycerides) into fatty acids. Unlike amylase, lipase is produced almost exclusively by the pancreas, making it a highly specific marker for pancreatic disorders.\n\nWhen the pancreas is inflamed or damaged, lipase leaks into the bloodstream. Lipase levels rise within 4-8 hours of acute pancreatitis, peak at 24 hours, and remain elevated for 8-14 days - much longer than amylase. This extended elevation makes lipase more useful for patients who present later after symptom onset.\n\nLipase is considered the preferred test for diagnosing acute pancreatitis due to its superior sensitivity and specificity compared to amylase. A lipase level 3 or more times the upper limit of normal is highly suggestive of acute pancreatitis.","whatItMeasures":"This test measures the level of lipase enzyme in your blood, reported in U/L (units per liter). Normal lipase levels typically range from 0-60 U/L. Levels 3+ times normal (above 180 U/L) strongly indicate acute pancreatitis.","whoIsItFor":"Anyone with severe upper abdominal pain, especially pain that radiates to the back, nausea, vomiting, or suspected pancreatitis. Essential for evaluating abdominal pain of unclear origin. Also useful for monitoring chronic pancreatitis and pancreatic health.","symptomsAddressed":["Severe upper abdominal pain","Pain radiating to back","Nausea and vomiting","Abdominal tenderness","Fever","Rapid heartbeat","Oily or fatty stools","Unintended weight loss","Bloating"],"conditionsScreened":["Acute pancreatitis","Chronic pancreatitis","Pancreatic cancer","Pancreatic duct obstruction","Gallstone pancreatitis","Cystic fibrosis","Celiac disease","Inflammatory bowel disease"],"whenToTest":"No fasting required. Can be tested anytime. For suspected acute pancreatitis, test as soon as possible. Lipase remains elevated longer than amylase (up to 2 weeks), making it useful even if symptoms started days ago.","preparationInstructions":"No special preparation needed. Inform your provider about medications, as some drugs (like codeine, morphine, and certain diuretics) can affect lipase levels. Alcohol consumption before testing may also impact results.","resultsOverview":"Normal lipase: 0-60 U/L. Levels 3+ times the upper limit (above 180 U/L) strongly suggest acute pancreatitis. Mildly elevated levels may indicate chronic pancreatitis, biliary disease, or other GI conditions. Low levels are typically not clinically significant.","faqs":[{"question":"Why is lipase better than amylase for pancreatitis?","answer":"Lipase is more specific to the pancreas (amylase is also made by salivary glands), stays elevated longer (8-14 days vs 3-5 days for amylase), and is more sensitive for detecting pancreatitis. Most guidelines now recommend lipase as the preferred test."},{"question":"What causes elevated lipase?","answer":"The most common cause is pancreatitis (acute or chronic). Other causes include gallbladder disease, bowel obstruction, peptic ulcers, kidney disease, and certain medications. Unlike amylase, salivary gland problems don't affect lipase."},{"question":"Can lipase be elevated without symptoms?","answer":"Yes, mildly elevated lipase can occur without pancreatitis, especially in kidney disease (reduced clearance), diabetes, or certain GI conditions. Levels 3+ times normal, however, are highly specific for pancreatitis."},{"question":"How long does lipase stay elevated?","answer":"In acute pancreatitis, lipase rises within 4-8 hours, peaks at 24 hours, and stays elevated for 8-14 days. This is much longer than amylase (3-5 days), making lipase more useful for patients who don't seek care immediately."}],"relatedTests":["amylase","cmp","hepatic-panel","hs-crp"],"relatedPanels":["panel-pancreatic-enzymes","panel-pancreatic-comprehensive"],"createdBy":"script","name_es":"Lipasa","biomarkers_es":["Lipasa"],"whenToTest_es":"No se requiere ayuno. Analizar tan pronto como se sospeche pancreatitis - la lipasa se eleva dentro de 4-8 horas y permanece elevada por 8-14 días, dando una ventana más larga para detección que la amilasa.","metaDescription_es":"Ordena una prueba de Lipasa por $12. El estándar de oro para detección de pancreatitis. Más específica y dura más que la amilasa. No requiere ayuno. Resultados en 1-2 días.","h1Title_es":"Prueba de Lipasa","metaTitle_es":"Prueba de Lipasa - $12 | Estándar de Oro para Pancreatitis | Justlabs","shortName_es":"Lipasa","symptomsAddressed_es":["Dolor abdominal superior severo","Dolor que se irradia hacia la espalda","Náuseas y vómitos","Dolor que empeora después de comer","Fiebre con dolor abdominal","Sensibilidad abdominal"],"whoIsItFor_es":"Cualquiera con síntomas de pancreatitis incluyendo dolor abdominal superior severo (especialmente irradiándose hacia la espalda), náuseas, vómitos después de comer, o dolor abdominal con fiebre. También valioso para monitorear pancreatitis crónica.","resultsOverview_es":"La lipasa normal es 0-60 U/L. Niveles 3+ veces lo normal (>180 U/L) sugieren fuertemente pancreatitis aguda. Debido a su alta especificidad pancreática, la lipasa es más confiable que la amilasa para diagnóstico de pancreatitis.","longDescription_es":"La lipasa es una enzima digestiva producida casi exclusivamente por el páncreas. Su función es descomponer las grasas dietéticas en ácidos grasos que el cuerpo puede absorber.\n\nCuando el páncreas se inflama o daña, la lipasa se libera al torrente sanguíneo en grandes cantidades. Esto hace que la lipasa sea el estándar de oro para diagnosticar pancreatitis porque:\n\n• Es más específica del páncreas que la amilasa\n• Permanece elevada por más tiempo (8-14 días vs 3-5 días)\n• Es menos afectada por otras condiciones abdominales\n\nNiveles de lipasa 3 o más veces el límite superior de lo normal son altamente sugestivos de pancreatitis aguda.","conditionsScreened_es":["Pancreatitis aguda","Pancreatitis crónica","Cáncer pancreático","Obstrucción del conducto pancreático","Colecistitis","Enfermedad celíaca"],"description_es":"Enzima pancreática específica para descomposición de grasas. El estándar de oro para diagnóstico de pancreatitis.","shortSummary_es":"La lipasa es el estándar de oro para detectar pancreatitis. Es producida casi exclusivamente por el páncreas, haciéndola más específica que la amilasa, y permanece elevada por más tiempo.","whatItMeasures_es":"Esta prueba mide la lipasa sérica, reportada en U/L. Los niveles normales típicamente varían de 0-60 U/L. Niveles 3+ veces lo normal (>180 U/L) son altamente específicos para pancreatitis aguda.","faqs_es":[{"question":"¿Por qué la lipasa es mejor que la amilasa para pancreatitis?","answer":"La lipasa es producida casi exclusivamente por el páncreas, haciéndola más específica. También permanece elevada por más tiempo (8-14 días vs 3-5 días), dando una ventana más larga para detección."},{"question":"¿Qué nivel de lipasa indica pancreatitis?","answer":"Niveles 3 o más veces el límite superior de lo normal (típicamente >180 U/L) son altamente específicos para pancreatitis aguda. Elevaciones menores pueden ocurrir con otras condiciones."},{"question":"¿Puede la lipasa estar elevada sin pancreatitis?","answer":"Aunque menos común que con la amilasa, la lipasa puede estar ligeramente elevada en enfermedad renal, obstrucción intestinal o ciertos medicamentos. Sin embargo, elevaciones significativas (3+ veces lo normal) son altamente específicas para pancreatitis."}],"createdAt":{"_nanoseconds":385000000,"_seconds":1769634724},"cptCode":"83690"}],"panels":[{"id":"panel-thyroid-complete","name":"Complete Thyroid Panel","description":"Comprehensive assessment of thyroid function including TSH, Free T4, Free T3, Reverse T3, and thyroid antibodies (TPO & TG).","category":"thyroid","tests":["tsh","free-t4","free-t3","reverse-t3","tpo-tg-antibodies"],"price":84,"savings":3,"fastingRequired":false,"popular":true,"metaTitle":"Complete Thyroid Panel - $80.5 | Full Thyroid Testing | Justlabs","metaDescription":"Get the complete thyroid panel for $80.5 - TSH, Free T4, Free T3, Reverse T3, and thyroid antibodies. The most comprehensive thyroid assessment available. No doctor visit needed.","h1Title":"Complete Thyroid Panel - Full Thyroid Assessment","shortSummary":"Our most comprehensive thyroid panel includes all 5 essential markers: TSH, Free T4, Free T3, Reverse T3, and both thyroid antibodies. Get the complete picture of your thyroid health.","longDescription":"Unlike basic thyroid tests that only check TSH, this complete panel reveals the full story of your thyroid function. Many people with \"normal\" TSH still have thyroid issues that only show up with comprehensive testing.\n\nThis panel includes:\n• TSH - The pituitary's signal to your thyroid\n• Free T4 - The main hormone your thyroid produces\n• Free T3 - The active hormone your cells use\n• Reverse T3 - The \"brake\" form that blocks T3\n• TPO & TG Antibodies - Autoimmune markers\n\nTogether, these markers reveal whether your thyroid is producing enough hormones AND whether your body is using them properly.","whatItMeasures":"This panel measures the complete thyroid hormone pathway: TSH (pituitary signal), Free T4 (thyroid output), Free T3 (active hormone), Reverse T3 (inactive/blocking form), and both major thyroid antibodies (TPO and thyroglobulin) that indicate autoimmune thyroid disease.","whoIsItFor":"Anyone with unexplained fatigue, weight issues, hair loss, brain fog, or mood changes. Essential for those with family history of thyroid disease, abnormal TSH results, or anyone wanting a thorough thyroid evaluation. Also valuable for monitoring Hashimoto's disease.","symptomsAddressed":["Fatigue","Weight gain or loss","Hair loss","Brain fog","Depression","Anxiety","Cold or heat intolerance","Dry skin","Irregular periods","Low libido"],"conditionsScreened":["Hypothyroidism","Hyperthyroidism","Hashimoto's thyroiditis","Graves' disease","T4 to T3 conversion issues","Reverse T3 dominance","Subclinical thyroid disease"],"whenToTest":"No fasting required. Test anytime, but morning testing is often preferred for consistency. If on thyroid medication, test before your daily dose or at least 4 hours after.","preparationInstructions":"No special preparation needed. Continue any thyroid medications as normal. For the most consistent results, test at the same time of day if monitoring over time.","resultsOverview":"You'll receive results for all 5 markers with clear reference ranges. Look for: TSH 0.5-2.5, Free T4 1.0-1.5, Free T3 3.0-4.0, Reverse T3 ratio >10, and negative antibodies. Results outside these ranges warrant discussion with a healthcare provider.","faqs":[{"question":"Why test all these markers instead of just TSH?","answer":"TSH alone can miss many thyroid problems. You might have normal TSH but low T3, high Reverse T3, or elevated antibodies - all of which cause symptoms but won't show on a basic TSH test."},{"question":"What is Reverse T3 and why does it matter?","answer":"Reverse T3 is an inactive form of T3 that blocks active T3 from working. High Reverse T3 (from stress, illness, or dieting) can cause hypothyroid symptoms even with normal TSH and T4."},{"question":"Can this panel diagnose Hashimoto's?","answer":"Yes! The TPO and TG antibody tests are the key to diagnosing Hashimoto's thyroiditis. Elevated antibodies confirm autoimmune thyroid disease, even if thyroid hormone levels are still normal."},{"question":"How much am I saving with this panel?","answer":"You save $6 compared to ordering these 5 tests individually. Plus, you get a complete picture in one blood draw instead of multiple tests."}],"relatedTests":["selenium","iodine","vitamin-d","cortisol-am"],"relatedPanels":["panel-thyroid-basic","panel-thyroid-hashimotos","panel-wellness-comprehensive"],"name_es":"Panel Tiroideo Completo","whenToTest_es":"No se requiere ayuno. Puedes hacerte la prueba en cualquier momento, aunque se prefiere por la mañana para mayor consistencia. Si tomas medicación tiroidea, haz la prueba antes de tu dosis diaria o al menos 4 horas después.","metaDescription_es":"Obtén el panel tiroideo completo por $80.5 - TSH, T4 Libre, T3 Libre, T3 Reversa y anticuerpos tiroideos. La evaluación tiroidea más completa disponible. Sin necesidad de visita médica.","preparationInstructions_es":"No se necesita preparación especial. Continúa con cualquier medicamento tiroideo como de costumbre. Para obtener resultados más consistentes, haz la prueba a la misma hora del día si estás monitoreando a lo largo del tiempo.","h1Title_es":"Panel Tiroideo Completo - Evaluación Tiroidea Integral","metaTitle_es":"Panel Tiroideo Completo - $80.5 | Pruebas Completas de Tiroides | Justlabs","symptomsAddressed_es":["Fatiga","Aumento o pérdida de peso","Caída del cabello","Niebla mental","Depresión","Ansiedad","Intolerancia al frío o calor","Piel seca","Períodos irregulares","Baja libido"],"whoIsItFor_es":"Cualquier persona con fatiga inexplicable, problemas de peso, caída del cabello, niebla mental o cambios de humor. Esencial para quienes tienen antecedentes familiares de enfermedad tiroidea, resultados anormales de TSH o cualquiera que desee una evaluación tiroidea exhaustiva. También valioso para monitorear la enfermedad de Hashimoto.","resultsOverview_es":"Recibirás resultados de los 5 marcadores con rangos de referencia claros. Busca: TSH 0.5-2.5, T4 Libre 1.0-1.5, T3 Libre 3.0-4.0, proporción de T3 Reversa >10 y anticuerpos negativos. Los resultados fuera de estos rangos ameritan discusión con un profesional de la salud.","longDescription_es":"A diferencia de las pruebas básicas de tiroides que solo verifican TSH, este panel completo revela la historia completa de tu función tiroidea. Muchas personas con TSH \"normal\" aún tienen problemas de tiroides que solo se detectan con pruebas exhaustivas.\n\nEste panel incluye:\n• TSH - La señal de la hipófisis a tu tiroides\n• T4 Libre - La hormona principal que produce tu tiroides\n• T3 Libre - La hormona activa que usan tus células\n• T3 Reversa - La forma de \"freno\" que bloquea la T3\n• Anticuerpos TPO y TG - Marcadores autoinmunes\n\nJuntos, estos marcadores revelan si tu tiroides está produciendo suficientes hormonas Y si tu cuerpo las está usando correctamente.","conditionsScreened_es":["Hipotiroidismo","Hipertiroidismo","Tiroiditis de Hashimoto","Enfermedad de Graves","Problemas de conversión de T4 a T3","Dominancia de T3 Reversa","Enfermedad tiroidea subclínica"],"description_es":"Evaluación integral de la función tiroidea que incluye TSH, T4 Libre, T3 Libre, T3 Reversa y anticuerpos tiroideos (TPO y TG).","shortSummary_es":"Nuestro panel tiroideo más completo incluye los 5 marcadores esenciales: TSH, T4 Libre, T3 Libre, T3 Reversa y ambos anticuerpos tiroideos. Obtén una imagen completa de tu salud tiroidea.","whatItMeasures_es":"Este panel mide la vía completa de hormonas tiroideas: TSH (señal de la hipófisis), T4 Libre (producción tiroidea), T3 Libre (hormona activa), T3 Reversa (forma inactiva/bloqueadora) y ambos anticuerpos tiroideos principales (TPO y tiroglobulina) que indican enfermedad tiroidea autoinmune.","faqs_es":[{"question":"¿Por qué analizar todos estos marcadores en lugar de solo TSH?","answer":"La TSH sola puede pasar por alto muchos problemas de tiroides. Podrías tener TSH normal pero T3 baja, T3 Reversa alta o anticuerpos elevados - todo lo cual causa síntomas pero no aparecerá en una prueba básica de TSH."},{"question":"¿Qué es la T3 Reversa y por qué importa?","answer":"La T3 Reversa es una forma inactiva de T3 que bloquea el funcionamiento de la T3 activa. Una T3 Reversa alta (por estrés, enfermedad o dietas) puede causar síntomas de hipotiroidismo incluso con TSH y T4 normales."},{"question":"¿Puede este panel diagnosticar Hashimoto?","answer":"¡Sí! Las pruebas de anticuerpos TPO y TG son clave para diagnosticar la tiroiditis de Hashimoto. Los anticuerpos elevados confirman enfermedad tiroidea autoinmune, incluso si los niveles de hormonas tiroideas aún son normales."},{"question":"¿Cuánto ahorro con este panel?","answer":"Ahorras $6 en comparación con pedir estas 5 pruebas individualmente. Además, obtienes una imagen completa en una sola extracción de sangre en lugar de múltiples pruebas."}]},{"id":"panel-thyroid-basic","name":"Basic Thyroid Panel","description":"Essential thyroid markers including TSH, Free T4, and Free T3 for basic thyroid assessment.","category":"thyroid","tests":["tsh","free-t4","free-t3"],"price":30,"savings":2,"fastingRequired":false,"popular":false,"metaTitle":"Basic Thyroid Panel - $28 (Save $2) | TSH, Free T4 & T3 | Justlabs","metaDescription":"Get the essential thyroid panel for $28 - TSH, Free T4, and Free T3. Screen for thyroid disorders with the 3 most important thyroid markers. Results in 1-2 days.","h1Title":"Basic Thyroid Panel - Essential Thyroid Testing","shortSummary":"This panel includes the 3 essential thyroid markers: TSH, Free T4, and Free T3. The perfect starting point for evaluating thyroid function without unnecessary tests.","longDescription":"Not everyone needs a complete thyroid panel. This basic panel covers the three most important thyroid markers:\n\n• TSH - The master controller from your pituitary that tells your thyroid how much hormone to make\n• Free T4 - The main hormone your thyroid produces\n• Free T3 - The active hormone your cells actually use\n\nTogether, these markers show whether your thyroid is producing enough hormones and whether your body is converting them properly. This panel is ideal for routine thyroid screening or monitoring existing thyroid conditions.","whatItMeasures":"This panel measures the three core thyroid hormones: TSH (the pituitary signal, normal 0.4-4.0 mIU/L), Free T4 (thyroid output, normal 0.8-1.8 ng/dL), and Free T3 (active hormone, normal 2.3-4.2 pg/mL). These markers reveal if your thyroid is functioning properly.","whoIsItFor":"Anyone wanting a basic thyroid checkup, people with symptoms like fatigue, weight changes, or hair loss, those monitoring thyroid medication, and anyone with family history of thyroid disease. Also great for annual health screening.","symptomsAddressed":["Fatigue","Weight gain","Weight loss","Hair loss","Cold intolerance","Heat intolerance","Brain fog","Dry skin","Mood changes"],"conditionsScreened":["Hypothyroidism","Hyperthyroidism","Subclinical thyroid disease","T4 to T3 conversion issues"],"whenToTest":"No fasting required. Test anytime, though morning testing is often preferred for consistency. If on thyroid medication, test before your daily dose.","preparationInstructions":"No special preparation needed. Continue thyroid medications as normal - but for consistent monitoring, test at the same time each day, before your medication dose.","resultsOverview":"Optimal ranges: TSH 0.5-2.5 mIU/L, Free T4 1.0-1.5 ng/dL, Free T3 3.0-4.0 pg/mL. High TSH with low T4/T3 suggests hypothyroidism. Low TSH with high T4/T3 suggests hyperthyroidism.","faqs":[{"question":"What's the difference between the Basic and Complete Thyroid Panels?","answer":"The Basic panel includes TSH, Free T4, and Free T3 - the core markers. The Complete panel adds Reverse T3 and thyroid antibodies for detecting autoimmune thyroid disease and conversion issues."},{"question":"Is this enough testing for thyroid symptoms?","answer":"For most people, yes. If results are normal but you still have symptoms, consider the Complete Thyroid Panel which includes antibodies (for Hashimoto's) and Reverse T3."},{"question":"Why test Free T3 instead of just TSH?","answer":"TSH alone can miss problems. Some people have normal TSH but low T3 (the active hormone) - especially if they don't convert T4 to T3 well. Testing all three gives a complete picture."},{"question":"How often should I test my thyroid?","answer":"For screening, annually is usually sufficient. If on thyroid medication, test every 6-12 weeks when adjusting doses, then every 6-12 months once stable."}],"relatedTests":["reverse-t3","tpo-tg-antibodies","tpo-antibodies","thyroglobulin-antibodies"],"relatedPanels":["panel-thyroid-complete","panel-thyroid-hashimotos"],"name_es":"Panel Tiroideo Básico","whenToTest_es":"No se requiere ayuno. Haz la prueba en cualquier momento, aunque a menudo se prefiere por la mañana para mayor consistencia. Si tomas medicación tiroidea, haz la prueba antes de tu dosis diaria.","metaDescription_es":"Obtén el panel tiroideo esencial por $28 - TSH, T4 Libre y T3 Libre. Detecta trastornos tiroideos con los 3 marcadores tiroideos más importantes. Resultados en 1-2 días.","preparationInstructions_es":"No se necesita preparación especial. Continúa con los medicamentos tiroideos como de costumbre - pero para un monitoreo consistente, haz la prueba a la misma hora cada día, antes de tu dosis de medicamento.","h1Title_es":"Panel Tiroideo Básico - Pruebas Tiroideas Esenciales","metaTitle_es":"Panel Tiroideo Básico - $28 (Ahorra $2) | TSH, T4 Libre y T3 | Justlabs","symptomsAddressed_es":["Fatiga","Aumento de peso","Pérdida de peso","Caída del cabello","Intolerancia al frío","Intolerancia al calor","Niebla mental","Piel seca","Cambios de humor"],"whoIsItFor_es":"Cualquier persona que desee un chequeo tiroideo básico, personas con síntomas como fatiga, cambios de peso o caída del cabello, quienes monitorean medicación tiroidea y cualquiera con antecedentes familiares de enfermedad tiroidea. También excelente para el tamizaje de salud anual.","resultsOverview_es":"Rangos óptimos: TSH 0.5-2.5 mIU/L, T4 Libre 1.0-1.5 ng/dL, T3 Libre 3.0-4.0 pg/mL. TSH alta con T4/T3 baja sugiere hipotiroidismo. TSH baja con T4/T3 alta sugiere hipertiroidismo.","longDescription_es":"No todos necesitan un panel tiroideo completo. Este panel básico cubre los tres marcadores tiroideos más importantes:\n\n• TSH - El controlador maestro de tu hipófisis que le dice a tu tiroides cuánta hormona producir\n• T4 Libre - La hormona principal que produce tu tiroides\n• T3 Libre - La hormona activa que realmente usan tus células\n\nJuntos, estos marcadores muestran si tu tiroides está produciendo suficientes hormonas y si tu cuerpo las está convirtiendo correctamente. Este panel es ideal para el tamizaje tiroideo de rutina o para monitorear condiciones tiroideas existentes.","conditionsScreened_es":["Hipotiroidismo","Hipertiroidismo","Enfermedad tiroidea subclínica","Problemas de conversión de T4 a T3"],"description_es":"Marcadores tiroideos esenciales que incluyen TSH, T4 Libre y T3 Libre para una evaluación tiroidea básica.","shortSummary_es":"Este panel incluye los 3 marcadores tiroideos esenciales: TSH, T4 Libre y T3 Libre. El punto de partida perfecto para evaluar la función tiroidea sin pruebas innecesarias.","whatItMeasures_es":"Este panel mide las tres hormonas tiroideas principales: TSH (la señal de la hipófisis, normal 0.4-4.0 mIU/L), T4 Libre (producción tiroidea, normal 0.8-1.8 ng/dL) y T3 Libre (hormona activa, normal 2.3-4.2 pg/mL). Estos marcadores revelan si tu tiroides está funcionando correctamente.","faqs_es":[{"question":"¿Cuál es la diferencia entre el Panel Básico y el Completo?","answer":"El panel Básico incluye TSH, T4 Libre y T3 Libre - los marcadores principales. El panel Completo agrega T3 Reversa y anticuerpos tiroideos para detectar enfermedad tiroidea autoinmune y problemas de conversión."},{"question":"¿Es suficiente esta prueba para síntomas tiroideos?","answer":"Para la mayoría de las personas, sí. Si los resultados son normales pero aún tienes síntomas, considera el Panel Tiroideo Completo que incluye anticuerpos (para Hashimoto) y T3 Reversa."},{"question":"¿Por qué analizar T3 Libre en lugar de solo TSH?","answer":"La TSH sola puede pasar por alto problemas. Algunas personas tienen TSH normal pero T3 baja (la hormona activa) - especialmente si no convierten bien T4 a T3. Analizar los tres da una imagen completa."},{"question":"¿Con qué frecuencia debo hacerme pruebas de tiroides?","answer":"Para tamizaje, anualmente suele ser suficiente. Si tomas medicación tiroidea, haz pruebas cada 6-12 semanas al ajustar dosis, luego cada 6-12 meses una vez estable."}]},{"id":"panel-thyroid-hashimotos","name":"Hashimoto's Panel","description":"Focused panel for autoimmune thyroid disease including TSH, Free T4, TPO Antibodies, and Thyroglobulin Antibodies.","category":"thyroid","tests":["tsh","free-t4","tpo-antibodies","thyroglobulin-antibodies","free-t3"],"price":58,"savings":3,"fastingRequired":false,"metaTitle":"Hashimoto's Panel - $56 (Save $2) | Autoimmune Thyroid Testing | Justlabs","metaDescription":"Screen for Hashimoto's thyroiditis with our specialized panel for $54. Includes TSH, Free T4, TPO and TG antibodies. Detect autoimmune thyroid disease early. Results in 2-3 days.","h1Title":"Hashimoto's Panel - Autoimmune Thyroid Testing","shortSummary":"The definitive panel for diagnosing Hashimoto's thyroiditis - the #1 cause of hypothyroidism. Tests both major thyroid antibodies that indicate autoimmune thyroid disease.","longDescription":"Hashimoto's thyroiditis is the most common cause of hypothyroidism, affecting up to 14 million Americans. This autoimmune condition causes your immune system to attack your thyroid gland, slowly destroying it.\n\nThis panel includes:\n• TSH - Detects thyroid dysfunction\n• Free T4 - Measures thyroid output\n• TPO Antibodies - Found in 90% of Hashimoto's cases\n• Thyroglobulin Antibodies - Second marker of autoimmune attack\n\nImportantly, antibodies can be elevated years before thyroid hormone levels become abnormal - allowing for early detection and proactive management.","whatItMeasures":"This panel measures thyroid function (TSH and Free T4) plus two antibodies that attack thyroid tissue. TPO antibodies target the enzyme that makes thyroid hormones. Thyroglobulin antibodies attack the protein used to produce thyroid hormones. Elevated antibodies confirm autoimmune thyroid disease.","whoIsItFor":"Anyone with unexplained thyroid symptoms, family history of Hashimoto's or autoimmune diseases, abnormal TSH results, or other autoimmune conditions. Essential for women planning pregnancy, as Hashimoto's increases miscarriage risk. Also important if thyroid issues run in your family.","symptomsAddressed":["Fatigue","Weight gain","Hair loss","Cold intolerance","Brain fog","Depression","Joint pain","Dry skin","Constipation","Puffy face"],"conditionsScreened":["Hashimoto's thyroiditis","Autoimmune thyroid disease","Hypothyroidism","Postpartum thyroiditis","Thyroid inflammation"],"whenToTest":"No fasting required. Test anytime. Antibodies can be detected even when TSH is still normal, so don't wait for symptoms to worsen. If you have family history or other autoimmune conditions, test proactively.","preparationInstructions":"No special preparation needed. Continue any thyroid medications as prescribed. Antibody levels are not affected by time of day or food intake.","resultsOverview":"Elevated TPO antibodies (>35 IU/mL) and/or TG antibodies (>20 IU/mL) confirm Hashimoto's. Higher antibody levels often correlate with more thyroid inflammation. Even with elevated antibodies, thyroid hormone levels may still be normal initially.","faqs":[{"question":"Can antibodies be elevated if my TSH is normal?","answer":"Yes! Antibodies often become elevated years before thyroid hormone levels change. This is why testing antibodies is so valuable - it can catch Hashimoto's early."},{"question":"What does it mean if I have Hashimoto's?","answer":"Hashimoto's means your immune system is attacking your thyroid. It may lead to hypothyroidism over time. With monitoring and treatment if needed, most people manage well."},{"question":"Is Hashimoto's hereditary?","answer":"Yes, there's a strong genetic component. If a parent or sibling has Hashimoto's or another autoimmune disease, your risk is higher. Testing can catch it early."},{"question":"Should I test both TPO and TG antibodies?","answer":"Yes. While TPO antibodies are more common in Hashimoto's, some people only have elevated TG antibodies. Testing both provides the most complete picture."}],"relatedTests":["free-t3","reverse-t3","tpo-tg-antibodies","vitamin-d","selenium"],"relatedPanels":["panel-thyroid-complete","panel-thyroid-basic"],"name_es":"Panel de Hashimoto","whenToTest_es":"No se requiere ayuno. Haz la prueba en cualquier momento. Los anticuerpos pueden detectarse incluso cuando la TSH aún es normal, así que no esperes a que los síntomas empeoren. Si tienes antecedentes familiares u otras condiciones autoinmunes, haz la prueba de forma proactiva.","metaDescription_es":"Detecta tiroiditis de Hashimoto con nuestro panel especializado por $54. Incluye TSH, T4 Libre, anticuerpos TPO y TG. Detecta enfermedad tiroidea autoinmune temprano. Resultados en 2-3 días.","preparationInstructions_es":"No se necesita preparación especial. Continúa con cualquier medicamento tiroideo según lo prescrito. Los niveles de anticuerpos no se ven afectados por la hora del día ni la ingesta de alimentos.","h1Title_es":"Panel de Hashimoto - Pruebas de Tiroides Autoinmune","metaTitle_es":"Panel de Hashimoto - $56 (Ahorra $2) | Pruebas de Tiroides Autoinmune | Justlabs","symptomsAddressed_es":["Fatiga","Aumento de peso","Caída del cabello","Intolerancia al frío","Niebla mental","Depresión","Dolor articular","Piel seca","Estreñimiento","Cara hinchada"],"whoIsItFor_es":"Cualquier persona con síntomas tiroideos inexplicables, antecedentes familiares de Hashimoto o enfermedades autoinmunes, resultados anormales de TSH u otras condiciones autoinmunes. Esencial para mujeres que planean embarazo, ya que Hashimoto aumenta el riesgo de aborto espontáneo. También importante si los problemas de tiroides son hereditarios en tu familia.","resultsOverview_es":"Anticuerpos TPO elevados (>35 UI/mL) y/o anticuerpos TG (>20 UI/mL) confirman Hashimoto. Los niveles más altos de anticuerpos a menudo se correlacionan con más inflamación tiroidea. Incluso con anticuerpos elevados, los niveles de hormonas tiroideas pueden ser normales inicialmente.","longDescription_es":"La tiroiditis de Hashimoto es la causa más común de hipotiroidismo, afectando hasta 14 millones de estadounidenses. Esta condición autoinmune hace que tu sistema inmunológico ataque tu glándula tiroides, destruyéndola lentamente.\n\nEste panel incluye:\n• TSH - Detecta disfunción tiroidea\n• T4 Libre - Mide la producción tiroidea\n• Anticuerpos TPO - Presentes en el 90% de los casos de Hashimoto\n• Anticuerpos Tiroglobulina - Segundo marcador de ataque autoinmune\n\nImportante: los anticuerpos pueden estar elevados años antes de que los niveles de hormonas tiroideas se vuelvan anormales - permitiendo la detección temprana y el manejo proactivo.","conditionsScreened_es":["Tiroiditis de Hashimoto","Enfermedad tiroidea autoinmune","Hipotiroidismo","Tiroiditis posparto","Inflamación tiroidea"],"description_es":"Panel especializado para enfermedad tiroidea autoinmune que incluye TSH, T4 Libre, Anticuerpos TPO y Anticuerpos Tiroglobulina.","shortSummary_es":"El panel definitivo para diagnosticar tiroiditis de Hashimoto - la causa #1 de hipotiroidismo. Analiza ambos anticuerpos tiroideos principales que indican enfermedad tiroidea autoinmune.","whatItMeasures_es":"Este panel mide la función tiroidea (TSH y T4 Libre) más dos anticuerpos que atacan el tejido tiroideo. Los anticuerpos TPO atacan la enzima que produce hormonas tiroideas. Los anticuerpos tiroglobulina atacan la proteína usada para producir hormonas tiroideas. Los anticuerpos elevados confirman enfermedad tiroidea autoinmune.","faqs_es":[{"question":"¿Pueden los anticuerpos estar elevados si mi TSH es normal?","answer":"¡Sí! Los anticuerpos a menudo se elevan años antes de que cambien los niveles de hormonas tiroideas. Por eso analizar anticuerpos es tan valioso - puede detectar Hashimoto temprano."},{"question":"¿Qué significa si tengo Hashimoto?","answer":"Hashimoto significa que tu sistema inmunológico está atacando tu tiroides. Puede llevar a hipotiroidismo con el tiempo. Con monitoreo y tratamiento si es necesario, la mayoría de las personas lo manejan bien."},{"question":"¿Es hereditario el Hashimoto?","answer":"Sí, hay un fuerte componente genético. Si un padre o hermano tiene Hashimoto u otra enfermedad autoinmune, tu riesgo es mayor. Las pruebas pueden detectarlo temprano."},{"question":"¿Debo analizar tanto anticuerpos TPO como TG?","answer":"Sí. Aunque los anticuerpos TPO son más comunes en Hashimoto, algunas personas solo tienen anticuerpos TG elevados. Analizar ambos proporciona la imagen más completa."}]},{"id":"panel-metabolic-complete","name":"Complete Metabolic Health Panel","description":"Comprehensive metabolic assessment including CMP, lipids, HbA1c, and inflammation markers.","category":"metabolic","tests":["cmp","lipid-panel","hemoglobin-a1c","hs-crp","insulin-fasting"],"price":50,"savings":3.5,"fastingRequired":true,"popular":true,"metaTitle":"Complete Metabolic Health Panel - $50 | Blood Sugar & Lipids | Justlabs","metaDescription":"Get a complete metabolic assessment for $50. Includes CMP, lipid panel, HbA1c, fasting insulin, and inflammation. Detect metabolic syndrome early. Results in 1-2 days.","h1Title":"Complete Metabolic Health Panel - Comprehensive Metabolic Assessment","shortSummary":"This comprehensive panel evaluates all aspects of metabolic health: organ function, cholesterol, blood sugar, insulin resistance, and inflammation - the key drivers of chronic disease.","longDescription":"Metabolic health is the foundation of long-term wellness. This panel provides a complete picture of your metabolism, covering:\n\n• Comprehensive Metabolic Panel - Organ function, electrolytes, kidney and liver health\n• Lipid Panel - Cholesterol and triglycerides for heart disease risk\n• HbA1c - 2-3 month average blood sugar\n• Fasting Insulin - Early detector of insulin resistance\n• hs-CRP - Inflammation marker linked to heart disease\n\nTogether, these markers can detect metabolic syndrome - a cluster of conditions that dramatically increases risk of heart disease, diabetes, and stroke.","whatItMeasures":"This panel measures over 25 biomarkers: 14 metabolic markers (glucose, electrolytes, kidney/liver function), 5 lipid markers (cholesterol, triglycerides), HbA1c (blood sugar average), fasting insulin (insulin resistance), and hs-CRP (inflammation). It provides a comprehensive view of metabolic function.","whoIsItFor":"Adults concerned about metabolic health, those with weight issues, family history of diabetes or heart disease, people with elevated blood pressure, anyone wanting to assess insulin resistance, and those interested in optimizing metabolic function.","symptomsAddressed":["Fatigue","Weight gain","Difficulty losing weight","Brain fog","Sugar cravings","High blood pressure","Abdominal fat","Frequent urination","Increased thirst"],"conditionsScreened":["Metabolic syndrome","Insulin resistance","Prediabetes","Type 2 diabetes","High cholesterol","Fatty liver disease","Chronic inflammation","Cardiovascular risk"],"whenToTest":"Fasting for 9-12 hours is required for accurate insulin and lipid results. Schedule for morning and drink only water during the fast. Ideal for annual metabolic health screening.","preparationInstructions":"Fast for 9-12 hours before your blood draw (water is allowed). Avoid alcohol for 24 hours prior. Continue all medications unless your doctor advises otherwise. Schedule for morning for easiest fasting.","resultsOverview":"You'll receive a comprehensive metabolic report. Key targets: fasting glucose <100, HbA1c <5.7%, fasting insulin <10, triglycerides <150, hs-CRP <1.0 mg/L. Elevated insulin is often the earliest sign of metabolic problems - even before blood sugar rises.","faqs":[{"question":"Why is fasting insulin included?","answer":"Fasting insulin is one of the earliest markers of metabolic dysfunction. It can be elevated for years before blood sugar rises, making it essential for catching insulin resistance early when it's easiest to reverse."},{"question":"What is metabolic syndrome?","answer":"Metabolic syndrome is a cluster of conditions: high blood pressure, high blood sugar, excess abdominal fat, high triglycerides, and low HDL cholesterol. Having 3+ of these dramatically increases disease risk."},{"question":"Why include hs-CRP?","answer":"Chronic low-grade inflammation drives metabolic disease and increases cardiovascular risk. hs-CRP measures this inflammation and adds important context to your metabolic picture."},{"question":"How often should I get this panel?","answer":"Annually for most adults. More frequently (every 3-6 months) if you're working on improving metabolic health through diet and lifestyle changes and want to track progress."}],"relatedTests":["glucose-fasting","hepatic-panel","uric-acid"],"relatedPanels":["panel-diabetes-comprehensive","panel-heart-health","panel-wellness-comprehensive"],"name_es":"Panel Completo de Salud Metabólica","whenToTest_es":"Se requiere ayuno de 9-12 horas para resultados precisos de insulina y lípidos. Programa para la mañana y bebe solo agua durante el ayuno. Ideal para tamizaje anual de salud metabólica.","metaDescription_es":"Obtén una evaluación metabólica completa por $45. Incluye PMI, panel de lípidos, HbA1c, insulina en ayunas e inflamación. Detecta el síndrome metabólico temprano. Resultados en 1-2 días.","preparationInstructions_es":"Ayuna 9-12 horas antes de tu extracción de sangre (se permite agua). Evita el alcohol 24 horas antes. Continúa con todos los medicamentos a menos que tu médico indique lo contrario. Programa para la mañana para el ayuno más fácil.","h1Title_es":"Panel Completo de Salud Metabólica - Evaluación Metabólica Integral","metaTitle_es":"Panel Completo de Salud Metabólica - $45 | Azúcar en Sangre y Lípidos | Justlabs","symptomsAddressed_es":["Fatiga","Aumento de peso","Dificultad para perder peso","Niebla mental","Antojos de azúcar","Presión arterial alta","Grasa abdominal","Micción frecuente","Sed aumentada"],"whoIsItFor_es":"Adultos preocupados por la salud metabólica, quienes tienen problemas de peso, antecedentes familiares de diabetes o enfermedad cardíaca, personas con presión arterial elevada, cualquiera que desee evaluar resistencia a la insulina, y quienes están interesados en optimizar la función metabólica.","resultsOverview_es":"Recibirás un informe metabólico completo. Objetivos clave: glucosa en ayunas <100, HbA1c <5.7%, insulina en ayunas <10, triglicéridos <150, hs-CRP <1.0 mg/L. La insulina elevada es a menudo la primera señal de problemas metabólicos - incluso antes de que suba el azúcar en sangre.","longDescription_es":"La salud metabólica es la base del bienestar a largo plazo. Este panel proporciona una imagen completa de tu metabolismo, cubriendo:\n\n• Panel Metabólico Integral - Función de órganos, electrolitos, salud renal y hepática\n• Panel de Lípidos - Colesterol y triglicéridos para riesgo de enfermedad cardíaca\n• HbA1c - Promedio de azúcar en sangre de 2-3 meses\n• Insulina en Ayunas - Detector temprano de resistencia a la insulina\n• hs-CRP - Marcador de inflamación relacionado con enfermedad cardíaca\n\nJuntos, estos marcadores pueden detectar el síndrome metabólico - un grupo de condiciones que aumenta dramáticamente el riesgo de enfermedad cardíaca, diabetes y derrame cerebral.","conditionsScreened_es":["Síndrome metabólico","Resistencia a la insulina","Prediabetes","Diabetes tipo 2","Colesterol alto","Enfermedad del hígado graso","Inflamación crónica","Riesgo cardiovascular"],"description_es":"Evaluación metabólica integral que incluye PMI, lípidos, HbA1c y marcadores de inflamación.","shortSummary_es":"Este panel integral evalúa todos los aspectos de la salud metabólica: función de órganos, colesterol, azúcar en sangre, resistencia a la insulina e inflamación - los impulsores clave de las enfermedades crónicas.","whatItMeasures_es":"Este panel mide más de 25 biomarcadores: 14 marcadores metabólicos (glucosa, electrolitos, función renal/hepática), 5 marcadores de lípidos (colesterol, triglicéridos), HbA1c (promedio de azúcar en sangre), insulina en ayunas (resistencia a la insulina) y hs-CRP (inflamación). Proporciona una visión integral de la función metabólica.","faqs_es":[{"question":"¿Por qué se incluye insulina en ayunas?","answer":"La insulina en ayunas es uno de los marcadores más tempranos de disfunción metabólica. Puede estar elevada por años antes de que suba el azúcar en sangre, haciéndola esencial para detectar resistencia a la insulina temprano cuando es más fácil de revertir."},{"question":"¿Qué es el síndrome metabólico?","answer":"El síndrome metabólico es un grupo de condiciones: presión arterial alta, azúcar en sangre alto, exceso de grasa abdominal, triglicéridos altos y colesterol HDL bajo. Tener 3+ de estos aumenta dramáticamente el riesgo de enfermedad."},{"question":"¿Por qué incluir hs-CRP?","answer":"La inflamación crónica de bajo grado impulsa la enfermedad metabólica y aumenta el riesgo cardiovascular. La hs-CRP mide esta inflamación y agrega contexto importante a tu imagen metabólica."},{"question":"¿Con qué frecuencia debo hacerme este panel?","answer":"Anualmente para la mayoría de los adultos. Más frecuentemente (cada 3-6 meses) si estás trabajando en mejorar la salud metabólica a través de cambios de dieta y estilo de vida y quieres seguir el progreso."}]},{"id":"panel-heart-health","name":"Advanced Heart Health Panel","description":"Comprehensive cardiovascular risk assessment including advanced lipids, ApoB, Lp(a), homocysteine, and hs-CRP.","category":"cardiovascular","tests":["apolipoprotein-b","lipoprotein-a","homocysteine","hs-crp","lipid-panel-cardio-iq"],"price":86,"savings":6,"fastingRequired":true,"popular":true,"metaTitle":"Advanced Heart Health Panel - $75 (Save $4) | ApoB & Lp(a) Testing | Justlabs","metaDescription":"Get advanced cardiovascular testing for $75. Includes lipids, ApoB, Lp(a), homocysteine, and hs-CRP. Detect heart disease risk standard tests miss. Results in 2-3 days.","h1Title":"Advanced Heart Health Panel - Comprehensive Cardiovascular Assessment","shortSummary":"Go beyond basic cholesterol testing. This advanced panel includes the markers cardiologists use to assess true cardiovascular risk: ApoB, Lp(a), homocysteine, and inflammation.","longDescription":"Standard cholesterol tests miss up to 50% of people at risk for heart disease. This advanced panel includes the markers that actually predict cardiovascular events:\n\n• Lipid Panel - Standard cholesterol and triglycerides\n• ApoB - Counts harmful particles (better than LDL-C alone)\n• Lp(a) - Genetic risk factor, test once in your lifetime\n• Homocysteine - Linked to heart disease and B vitamin status\n• hs-CRP - Inflammation that drives arterial damage\n\nMany people with \"normal\" cholesterol have elevated ApoB or Lp(a), putting them at significant risk. This panel reveals the complete picture.","whatItMeasures":"This panel measures 10+ markers: standard lipids (total cholesterol, HDL, LDL, triglycerides), ApoB (number of harmful particles), Lp(a) (genetic risk marker), homocysteine (amino acid linked to heart disease), and hs-CRP (inflammation). Together they provide a complete cardiovascular risk assessment.","whoIsItFor":"Anyone with family history of heart disease (especially early heart attacks), those with elevated cholesterol, people who've had abnormal lipid results, anyone wanting comprehensive heart risk assessment, and those whose family members have had strokes or heart attacks before age 60.","symptomsAddressed":["Chest discomfort","Shortness of breath","Family history of heart attacks","High blood pressure","Fatigue with exertion","Family history of stroke"],"conditionsScreened":["Atherosclerosis","Cardiovascular disease risk","Elevated Lp(a)","High ApoB","Hyperhomocysteinemia","Chronic inflammation","Familial hypercholesterolemia"],"whenToTest":"Fasting for 9-12 hours is required for accurate lipid results. Lp(a) only needs to be tested once in your lifetime - it's genetically determined and doesn't change. Other markers can be tested annually.","preparationInstructions":"Fast for 9-12 hours before your blood draw (water is allowed). Avoid alcohol for 24 hours prior. If taking supplements like B vitamins, continue as normal - they won't affect most results.","resultsOverview":"Key targets: LDL <100 (or <70 if high risk), ApoB <90 mg/dL (or <80 if high risk), Lp(a) <30 mg/dL (elevated is genetic - tell family to test!), homocysteine <10 µmol/L, hs-CRP <1.0 mg/L. Elevated results warrant discussion with a cardiologist.","faqs":[{"question":"Why is ApoB better than LDL cholesterol?","answer":"ApoB counts the actual number of harmful particles, while LDL-C measures cholesterol content. You can have normal LDL-C but elevated ApoB - meaning more particles that can cause heart disease. ApoB is a better predictor of cardiovascular events."},{"question":"What is Lp(a) and why should I test it?","answer":"Lp(a) is a genetically determined particle that dramatically increases heart disease risk. About 20% of people have elevated Lp(a). It only needs to be tested once - if it's high, tell your family members to get tested too."},{"question":"Can I lower my Lp(a)?","answer":"Lp(a) is mostly genetic and doesn't respond well to diet or most medications. However, knowing you have elevated Lp(a) means you should aggressively manage other risk factors. New medications specifically targeting Lp(a) are in development."},{"question":"Why include homocysteine?","answer":"Elevated homocysteine is linked to increased cardiovascular risk and is often caused by low B vitamins (B12, folate, B6). Unlike genetic factors, elevated homocysteine can often be lowered with B vitamin supplementation."}],"relatedTests":["lipid-panel-cardio-iq","lipoprotein-fractionation","apoe-genotype","vitamin-b12"],"relatedPanels":["panel-metabolic-complete","panel-wellness-comprehensive","panel-longevity"],"name_es":"Panel Avanzado de Salud Cardíaca","whenToTest_es":"Se requiere ayuno de 9-12 horas para resultados precisos de lípidos. El Lp(a) solo necesita analizarse una vez en tu vida - está determinado genéticamente y no cambia. Otros marcadores pueden analizarse anualmente.","metaDescription_es":"Obtén pruebas cardiovasculares avanzadas por $75. Incluye lípidos, ApoB, Lp(a), homocisteína y hs-CRP. Detecta el riesgo de enfermedad cardíaca que las pruebas estándar no detectan. Resultados en 2-3 días.","preparationInstructions_es":"Ayuna 9-12 horas antes de tu extracción de sangre (se permite agua). Evita el alcohol 24 horas antes. Si tomas suplementos como vitaminas B, continúa como de costumbre - no afectarán la mayoría de los resultados.","h1Title_es":"Panel Avanzado de Salud Cardíaca - Evaluación Cardiovascular Integral","metaTitle_es":"Panel Avanzado de Salud Cardíaca - $75 (Ahorra $4) | Pruebas de ApoB y Lp(a) | Justlabs","symptomsAddressed_es":["Molestia en el pecho","Dificultad para respirar","Antecedentes familiares de ataques cardíacos","Presión arterial alta","Fatiga con el esfuerzo","Antecedentes familiares de derrame cerebral"],"whoIsItFor_es":"Cualquier persona con antecedentes familiares de enfermedad cardíaca (especialmente ataques cardíacos tempranos), quienes tienen colesterol elevado, personas que han tenido resultados anormales de lípidos, cualquiera que desee una evaluación integral del riesgo cardíaco, y aquellos cuyos familiares han tenido derrames cerebrales o ataques cardíacos antes de los 60 años.","resultsOverview_es":"Objetivos clave: LDL <100 (o <70 si es alto riesgo), ApoB <90 mg/dL (o <80 si es alto riesgo), Lp(a) <30 mg/dL (si está elevado es genético - ¡dile a tu familia que se analice!), homocisteína <10 µmol/L, hs-CRP <1.0 mg/L. Los resultados elevados ameritan discusión con un cardiólogo.","longDescription_es":"Las pruebas estándar de colesterol pasan por alto hasta el 50% de las personas en riesgo de enfermedad cardíaca. Este panel avanzado incluye los marcadores que realmente predicen eventos cardiovasculares:\n\n• Panel de Lípidos - Colesterol estándar y triglicéridos\n• ApoB - Cuenta las partículas dañinas (mejor que solo LDL-C)\n• Lp(a) - Factor de riesgo genético, analízalo una vez en tu vida\n• Homocisteína - Relacionada con enfermedad cardíaca y estado de vitaminas B\n• hs-CRP - Inflamación que impulsa el daño arterial\n\nMuchas personas con colesterol \"normal\" tienen ApoB o Lp(a) elevado, poniéndolas en riesgo significativo. Este panel revela la imagen completa.","conditionsScreened_es":["Aterosclerosis","Riesgo de enfermedad cardiovascular","Lp(a) elevado","ApoB alto","Hiperhomocisteinemia","Inflamación crónica","Hipercolesterolemia familiar"],"description_es":"Evaluación integral del riesgo cardiovascular que incluye lípidos avanzados, ApoB, Lp(a), homocisteína y hs-CRP.","shortSummary_es":"Ve más allá de las pruebas básicas de colesterol. Este panel avanzado incluye los marcadores que usan los cardiólogos para evaluar el verdadero riesgo cardiovascular: ApoB, Lp(a), homocisteína e inflamación.","whatItMeasures_es":"Este panel mide más de 10 marcadores: lípidos estándar (colesterol total, HDL, LDL, triglicéridos), ApoB (número de partículas dañinas), Lp(a) (marcador de riesgo genético), homocisteína (aminoácido relacionado con enfermedad cardíaca) y hs-CRP (inflamación). Juntos proporcionan una evaluación completa del riesgo cardiovascular.","faqs_es":[{"question":"¿Por qué es mejor ApoB que el colesterol LDL?","answer":"ApoB cuenta el número real de partículas dañinas, mientras que LDL-C mide el contenido de colesterol. Puedes tener LDL-C normal pero ApoB elevado - lo que significa más partículas que pueden causar enfermedad cardíaca. ApoB es un mejor predictor de eventos cardiovasculares."},{"question":"¿Qué es Lp(a) y por qué debería analizarlo?","answer":"Lp(a) es una partícula determinada genéticamente que aumenta dramáticamente el riesgo de enfermedad cardíaca. Aproximadamente el 20% de las personas tienen Lp(a) elevado. Solo necesita analizarse una vez - si está alto, dile a tus familiares que también se analicen."},{"question":"¿Puedo bajar mi Lp(a)?","answer":"Lp(a) es mayormente genético y no responde bien a la dieta ni a la mayoría de los medicamentos. Sin embargo, saber que tienes Lp(a) elevado significa que debes manejar agresivamente otros factores de riesgo. Hay nuevos medicamentos específicamente dirigidos a Lp(a) en desarrollo."},{"question":"¿Por qué incluir homocisteína?","answer":"La homocisteína elevada está relacionada con mayor riesgo cardiovascular y a menudo es causada por vitaminas B bajas (B12, folato, B6). A diferencia de los factores genéticos, la homocisteína elevada a menudo puede reducirse con suplementación de vitaminas B."}]},{"id":"panel-diabetes-comprehensive","name":"Comprehensive Diabetes Panel","description":"Complete diabetes and prediabetes assessment including HbA1c, fasting glucose, and lipids.","category":"diabetes","tests":["hemoglobin-a1c","glucose-fasting","lipid-panel","insulin-fasting"],"price":35,"savings":0,"fastingRequired":true,"popular":true,"metaTitle":"Comprehensive Diabetes Panel - $30 (Save $4) | Prediabetes Screening | Justlabs","metaDescription":"Screen for diabetes and prediabetes for $30. Includes HbA1c, fasting glucose, and lipid panel. Catch insulin resistance early. Results in 1-2 days.","h1Title":"Comprehensive Diabetes Panel - Complete Diabetes Screening","shortSummary":"This panel detects diabetes and prediabetes at every stage. Includes lipids because diabetes dramatically increases heart disease risk.","longDescription":"Over 96 million Americans have prediabetes - and 80% don't know it. This comprehensive panel catches diabetes at every stage of development:\n\n• HbA1c - Your average blood sugar over 2-3 months\n• Fasting Glucose - Your blood sugar right now\n• Fasting Insulin - Detects insulin resistance years before blood sugar rises\n• Lipid Panel - Diabetes dramatically increases heart disease risk\n\nThe key insight: insulin levels rise years before blood sugar becomes elevated. By including fasting insulin, this panel can detect problems at the earliest, most reversible stage.","whatItMeasures":"This panel measures 9 markers: HbA1c (blood sugar average), fasting glucose (current blood sugar), and a complete lipid panel (cholesterol and triglycerides). Together they provide a complete picture of diabetes risk.","whoIsItFor":"Anyone over 45, adults with weight concerns, those with family history of diabetes, women with history of gestational diabetes or PCOS, anyone with high blood pressure, and those wanting to monitor their metabolic health or track progress on dietary changes.","symptomsAddressed":["Increased thirst","Frequent urination","Fatigue after meals","Sugar cravings","Weight gain","Difficulty losing weight","Brain fog","Blurred vision","Slow-healing wounds"],"conditionsScreened":["Type 2 diabetes","Prediabetes","Metabolic syndrome","Diabetic dyslipidemia"],"whenToTest":"Fasting for 9-12 hours is required for accurate lipid results. Schedule for morning. If you're tracking progress on lifestyle changes, retest every 3 months.","preparationInstructions":"Fast for 9-12 hours before your blood draw (water is allowed). Avoid alcohol for 24 hours prior. Continue diabetes medications unless your doctor advises otherwise.","resultsOverview":"Targets: Fasting glucose <100 mg/dL, HbA1c <5.7%. Prediabetes: glucose 100-125 or HbA1c 5.7-6.4%. Diabetes: glucose 126+ or HbA1c 6.5%+. ","faqs":[{"question":"Why include fasting insulin if HbA1c is normal?","answer":"Insulin becomes elevated years before blood sugar rises. By the time HbA1c is elevated, you may have had insulin resistance for 5-10 years. Testing insulin catches problems at the earliest stage."},{"question":"What is insulin resistance?","answer":"Insulin resistance means your cells don't respond well to insulin, so your pancreas has to make more. This leads to high insulin levels, weight gain, and eventually elevated blood sugar. It's reversible with lifestyle changes."},{"question":"Why are lipids included in a diabetes panel?","answer":"Diabetes and prediabetes dramatically increase heart disease risk. High triglycerides and low HDL often accompany insulin resistance. Monitoring both gives a complete picture of metabolic health."},{"question":"How often should I get this panel?","answer":"For screening: annually if you have risk factors. For monitoring prediabetes or lifestyle interventions: every 3-6 months to track progress. For diabetics: as recommended by your doctor."}],"relatedTests":["hemoglobin-a1c","cmp"],"relatedPanels":["panel-metabolic-complete","panel-wellness-comprehensive","panel-heart-health"],"name_es":"Panel Completo de Diabetes","whenToTest_es":"Se requiere ayuno de 9-12 horas para resultados precisos de lípidos. Programa para la mañana. Si estás siguiendo el progreso de cambios de estilo de vida, vuelve a analizarte cada 3 meses.","metaDescription_es":"Detecta diabetes y prediabetes por $30. Incluye HbA1c, glucosa en ayunas y panel de lípidos. Detecta resistencia a la insulina temprano. Resultados en 1-2 días.","preparationInstructions_es":"Ayuna 9-12 horas antes de tu extracción de sangre (se permite agua). Evita el alcohol 24 horas antes. Continúa con los medicamentos para diabetes a menos que tu médico indique lo contrario.","h1Title_es":"Panel Completo de Diabetes - Tamizaje Integral de Diabetes","metaTitle_es":"Panel Completo de Diabetes - $30 (Ahorra $4) | Tamizaje de Prediabetes | Justlabs","symptomsAddressed_es":["Sed aumentada","Micción frecuente","Fatiga después de las comidas","Antojos de azúcar","Aumento de peso","Dificultad para perder peso","Niebla mental","Visión borrosa","Heridas que sanan lentamente"],"whoIsItFor_es":"Cualquier persona mayor de 45 años, adultos con preocupaciones de peso, quienes tienen antecedentes familiares de diabetes, mujeres con historial de diabetes gestacional o SOP, cualquier persona con presión arterial alta, y quienes desean monitorear su salud metabólica o seguir el progreso de cambios dietéticos.","resultsOverview_es":"Objetivos: Glucosa en ayunas <100 mg/dL, HbA1c <5.7%. Prediabetes: glucosa 100-125 o HbA1c 5.7-6.4%. Diabetes: glucosa 126+ o HbA1c 6.5%+.","longDescription_es":"Más de 96 millones de estadounidenses tienen prediabetes - y el 80% no lo sabe. Este panel integral detecta la diabetes en cada etapa de desarrollo:\n\n• HbA1c - Tu promedio de azúcar en sangre durante 2-3 meses\n• Glucosa en Ayunas - Tu azúcar en sangre actual\n• Insulina en Ayunas - Detecta resistencia a la insulina años antes de que suba el azúcar\n• Panel de Lípidos - La diabetes aumenta dramáticamente el riesgo de enfermedad cardíaca\n\nLa información clave: los niveles de insulina suben años antes de que el azúcar en sangre se eleve. Al incluir insulina en ayunas, este panel puede detectar problemas en la etapa más temprana y reversible.","conditionsScreened_es":["Diabetes tipo 2","Prediabetes","Síndrome metabólico","Dislipidemia diabética"],"description_es":"Evaluación completa de diabetes y prediabetes que incluye HbA1c, glucosa en ayunas y lípidos.","shortSummary_es":"Este panel detecta diabetes y prediabetes en cada etapa. Incluye lípidos porque la diabetes aumenta dramáticamente el riesgo de enfermedad cardíaca.","whatItMeasures_es":"Este panel mide 9 marcadores: HbA1c (promedio de azúcar en sangre), glucosa en ayunas (azúcar en sangre actual) y un panel completo de lípidos (colesterol y triglicéridos). Juntos proporcionan una imagen completa del riesgo de diabetes.","faqs_es":[{"question":"¿Por qué incluir insulina en ayunas si la HbA1c es normal?","answer":"La insulina se eleva años antes de que suba el azúcar en sangre. Para cuando la HbA1c está elevada, puedes haber tenido resistencia a la insulina por 5-10 años. Analizar la insulina detecta problemas en la etapa más temprana."},{"question":"¿Qué es la resistencia a la insulina?","answer":"La resistencia a la insulina significa que tus células no responden bien a la insulina, así que tu páncreas tiene que producir más. Esto lleva a niveles altos de insulina, aumento de peso y eventualmente azúcar en sangre elevado. Es reversible con cambios de estilo de vida."},{"question":"¿Por qué se incluyen los lípidos en un panel de diabetes?","answer":"La diabetes y la prediabetes aumentan dramáticamente el riesgo de enfermedad cardíaca. Los triglicéridos altos y el HDL bajo a menudo acompañan la resistencia a la insulina. Monitorear ambos da una imagen completa de la salud metabólica."},{"question":"¿Con qué frecuencia debo hacerme este panel?","answer":"Para tamizaje: anualmente si tienes factores de riesgo. Para monitorear prediabetes o intervenciones de estilo de vida: cada 3-6 meses para seguir el progreso. Para diabéticos: según lo recomiende tu médico."}]},{"id":"panel-insulin-resistance","name":"Insulin Resistance Panel","description":"Comprehensive insulin resistance assessment including fasting glucose, fasting insulin, HbA1c, C-Peptide, and CMP.","category":"diabetes","tests":["glucose-fasting","insulin-fasting","hemoglobin-a1c","c-peptide","cmp"],"price":45,"savings":1.5,"fastingRequired":true,"metaTitle":"Insulin Resistance Panel - $45 | Justlabs","metaDescription":"Detect insulin resistance early with our 5-test panel for $45. Includes fasting glucose, insulin, HbA1c, C-Peptide, and CMP. Results in 1-2 days.","h1Title":"Insulin Resistance Panel - Metabolic Health Assessment","shortSummary":"This panel detects insulin resistance at every stage — from early pancreatic overproduction to full metabolic dysfunction. C-Peptide and fasting insulin together reveal how hard your pancreas is working.","longDescription":"Insulin resistance is the root cause of type 2 diabetes, metabolic syndrome, and a major driver of heart disease. This panel provides the most complete picture of insulin function available:\n\n• Fasting Glucose - Your blood sugar right now\n• Fasting Insulin - How much insulin your pancreas needs to control blood sugar\n• HbA1c - Your average blood sugar over 2-3 months\n• C-Peptide - A direct measure of how much insulin your pancreas produces\n• Comprehensive Metabolic Panel - Liver, kidney, and electrolyte function\n\nThe combination of insulin and C-Peptide is particularly powerful: insulin levels can be affected by external insulin use, but C-Peptide reflects only what your body produces. Together they give the clearest picture of metabolic health.","whatItMeasures":"This panel measures fasting glucose (current blood sugar), fasting insulin (insulin resistance marker), HbA1c (2-3 month blood sugar average), C-Peptide (endogenous insulin production), and 14 CMP markers (glucose, electrolytes, kidney and liver function).","whoIsItFor":"Anyone with weight concerns, family history of diabetes, PCOS, metabolic syndrome symptoms, or those wanting to detect insulin resistance before blood sugar becomes elevated. Also valuable for monitoring progress on dietary or lifestyle interventions.","symptomsAddressed":["Weight gain","Difficulty losing weight","Fatigue after meals","Sugar cravings","Brain fog","Increased thirst","Frequent urination","Darkened skin patches"],"conditionsScreened":["Insulin resistance","Prediabetes","Type 2 diabetes","Type 1 diabetes","Metabolic syndrome","PCOS-related metabolic dysfunction","Hyperinsulinemia"],"whenToTest":"Fasting for 10-12 hours is required for accurate insulin, glucose, and C-Peptide results. Schedule for morning. Retest every 3-6 months if monitoring lifestyle changes.","preparationInstructions":"Fast for 10-12 hours before your blood draw (water is allowed). Avoid alcohol for 24 hours prior. Continue medications unless your doctor advises otherwise.","resultsOverview":"Key targets: Fasting glucose <100 mg/dL, HbA1c <5.7%, Fasting insulin <10 µIU/mL, C-Peptide 0.8-3.1 ng/mL. Elevated insulin with normal glucose = early insulin resistance. Elevated C-Peptide confirms your pancreas is overproducing insulin.","faqs":[{"question":"Why include C-Peptide if we already test insulin?","answer":"C-Peptide is produced in equal amounts to insulin but is not affected by external insulin use. It provides a more accurate measure of your pancreas's own insulin production and helps distinguish Type 1 from Type 2 diabetes."},{"question":"What is insulin resistance?","answer":"Insulin resistance means your cells don't respond well to insulin, forcing your pancreas to produce more. Over time this leads to weight gain, elevated blood sugar, and eventually diabetes. It's reversible with lifestyle changes when caught early."},{"question":"Why is CMP included?","answer":"The CMP provides liver and kidney function markers that are often affected by metabolic dysfunction. Elevated liver enzymes can indicate fatty liver disease, which is closely linked to insulin resistance."},{"question":"How is this different from the Comprehensive Diabetes Panel?","answer":"This panel adds C-Peptide and CMP for a deeper look at insulin production and organ function. The Diabetes Panel focuses on glucose control and lipids. Choose this panel if you want the most thorough insulin resistance assessment."}],"relatedTests":["lipid-panel","hs-crp","adiponectin"],"relatedPanels":["panel-diabetes-comprehensive","panel-metabolic-complete","panel-wellness-comprehensive"]},{"id":"panel-hormone-female","name":"Female Hormone Panel","description":"Essential female hormone assessment including estradiol, progesterone, FSH, LH, testosterone, and DHEA-S.","category":"hormone","tests":["estradiol","progesterone","fsh","lh","testosterone-free-total","dhea-s"],"price":89,"savings":10,"fastingRequired":false,"metaTitle":"Female Hormone Panel - $79 (Save $6) | Complete Hormone Testing | Justlabs","metaDescription":"Get a complete female hormone panel for $79. Includes estradiol, progesterone, FSH, LH, testosterone, and DHEA-S. Understand hormonal imbalances. Results in 2-3 days.","h1Title":"Female Hormone Panel - Complete Hormone Assessment","shortSummary":"This comprehensive panel measures all major female hormones: estrogen, progesterone, reproductive hormones (FSH/LH), and androgens (testosterone/DHEA-S) - essential for understanding hormonal balance.","longDescription":"Female hormones affect virtually every aspect of health - mood, energy, metabolism, skin, hair, and of course reproductive function. This panel provides a complete picture:\n\n• Estradiol - The main estrogen, affecting mood, bone health, and skin\n• Progesterone - The calming hormone, essential for menstrual regularity\n• FSH & LH - Pituitary hormones that control the menstrual cycle\n• Testosterone (Free & Total) - Yes, women need testosterone too for energy and libido\n• DHEA-S - Adrenal hormone that's a precursor to other hormones\n\nWhether you're dealing with irregular cycles, PMS, perimenopause symptoms, or just want to understand your hormones, this panel provides answers.","whatItMeasures":"This panel measures 7 hormones: Estradiol (main estrogen), Progesterone (luteal phase hormone), FSH (ovarian stimulating hormone), LH (ovulation trigger), Total and Free Testosterone (androgens), and DHEA-S (adrenal precursor hormone). Values vary significantly based on menstrual cycle phase.","whoIsItFor":"Women with irregular periods, PMS, PMDD, or menstrual issues; those experiencing perimenopausal symptoms; women with low libido, fatigue, or mood changes; anyone with PCOS symptoms; and women wanting to understand their hormonal health.","symptomsAddressed":["Irregular periods","PMS/PMDD","Hot flashes","Night sweats","Low libido","Fatigue","Weight gain","Acne","Mood swings","Hair loss","Brain fog","Depression"],"conditionsScreened":["Hormonal imbalance","PCOS","Perimenopause","Menopause","Luteal phase defect","Estrogen dominance","Low testosterone","Adrenal issues"],"whenToTest":"No fasting required. Timing matters: For menstruating women, test on Day 3 of your cycle for FSH/LH/estradiol baseline, or Day 21 for progesterone. For those not menstruating or on birth control, any day is fine.","preparationInstructions":"No fasting needed. Note which day of your menstrual cycle you're testing (Day 1 = first day of period). This is crucial for interpreting results as hormone levels vary dramatically throughout the cycle.","resultsOverview":"Results vary by cycle phase. Day 3 (follicular): Estradiol 20-150 pg/mL, FSH 3-10 mIU/mL, LH 2-15 mIU/mL. Day 21 (luteal): Progesterone >10 ng/mL confirms ovulation. Testosterone: Total 15-70 ng/dL, Free 0.3-1.9 pg/mL. DHEA-S: varies by age (200-400 mcg/dL typical).","faqs":[{"question":"When in my cycle should I test?","answer":"It depends on what you want to know. Day 3 (early follicular) is best for FSH, LH, and baseline estradiol. Day 21 (mid-luteal) is best for progesterone to confirm ovulation. If unsure, Day 3 is often most informative."},{"question":"Can I test while on birth control?","answer":"You can, but results will be affected. Birth control suppresses your natural hormones, so FSH, LH, and ovarian hormones will be low. For a true picture, test 3+ months after stopping hormonal birth control."},{"question":"Why test testosterone in women?","answer":"Testosterone is important for women's energy, libido, muscle mass, and mood. Low testosterone causes fatigue and low libido. High testosterone (as in PCOS) can cause acne, hair growth, and irregular periods."},{"question":"What is DHEA-S and why test it?","answer":"DHEA-S is produced by your adrenal glands and is a precursor to both estrogen and testosterone. Low levels can cause fatigue and low libido. It naturally declines with age."}],"relatedTests":["prolactin","cortisol-total","tsh","vitamin-d","amh"],"relatedPanels":["panel-fertility-female","panel-thyroid-complete","panel-wellness-comprehensive"],"name_es":"Panel Hormonal Femenino","whenToTest_es":"No se requiere ayuno. El momento importa: Para mujeres menstruantes, analiza el día 3 de tu ciclo para la línea base de FSH/LH/estradiol, o el día 21 para progesterona. Para quienes no menstrúan o usan anticonceptivos, cualquier día está bien.","metaDescription_es":"Obtén un panel hormonal femenino completo por $79. Incluye estradiol, progesterona, FSH, LH, testosterona y DHEA-S. Entiende los desequilibrios hormonales. Resultados en 2-3 días.","preparationInstructions_es":"No se necesita ayuno. Anota en qué día de tu ciclo menstrual te estás analizando (Día 1 = primer día de período). Esto es crucial para interpretar los resultados ya que los niveles hormonales varían dramáticamente a lo largo del ciclo.","h1Title_es":"Panel Hormonal Femenino - Evaluación Hormonal Completa","metaTitle_es":"Panel Hormonal Femenino - $79 (Ahorra $6) | Pruebas Hormonales Completas | Justlabs","symptomsAddressed_es":["Períodos irregulares","SPM/TDPM","Bochornos","Sudores nocturnos","Baja libido","Fatiga","Aumento de peso","Acné","Cambios de humor","Caída del cabello","Niebla mental","Depresión"],"whoIsItFor_es":"Mujeres con períodos irregulares, SPM, TDPM o problemas menstruales; quienes experimentan síntomas perimenopáusicos; mujeres con baja libido, fatiga o cambios de humor; cualquiera con síntomas de SOP; y mujeres que desean entender su salud hormonal.","resultsOverview_es":"Los resultados varían según la fase del ciclo. Día 3 (folicular): Estradiol 20-150 pg/mL, FSH 3-10 mIU/mL, LH 2-15 mIU/mL. Día 21 (lútea): Progesterona >10 ng/mL confirma ovulación. Testosterona: Total 15-70 ng/dL, Libre 0.3-1.9 pg/mL. DHEA-S: varía según la edad (200-400 mcg/dL típico).","longDescription_es":"Las hormonas femeninas afectan prácticamente todos los aspectos de la salud - humor, energía, metabolismo, piel, cabello y por supuesto la función reproductiva. Este panel proporciona una imagen completa:\n\n• Estradiol - El estrógeno principal, afecta el humor, la salud ósea y la piel\n• Progesterona - La hormona calmante, esencial para la regularidad menstrual\n• FSH y LH - Hormonas de la hipófisis que controlan el ciclo menstrual\n• Testosterona (Libre y Total) - Sí, las mujeres también necesitan testosterona para energía y libido\n• DHEA-S - Hormona adrenal que es precursora de otras hormonas\n\nYa sea que estés lidiando con ciclos irregulares, SPM, síntomas de perimenopausia o simplemente quieras entender tus hormonas, este panel proporciona respuestas.","conditionsScreened_es":["Desequilibrio hormonal","SOP","Perimenopausia","Menopausia","Defecto de fase lútea","Dominancia de estrógeno","Testosterona baja","Problemas adrenales"],"description_es":"Evaluación hormonal femenina esencial que incluye estradiol, progesterona, FSH, LH, testosterona y DHEA-S.","shortSummary_es":"Este panel integral mide todas las hormonas femeninas principales: estrógeno, progesterona, hormonas reproductivas (FSH/LH) y andrógenos (testosterona/DHEA-S) - esencial para entender el equilibrio hormonal.","whatItMeasures_es":"Este panel mide 7 hormonas: Estradiol (estrógeno principal), Progesterona (hormona de la fase lútea), FSH (hormona estimulante del ovario), LH (desencadenante de ovulación), Testosterona Total y Libre (andrógenos) y DHEA-S (hormona precursora adrenal). Los valores varían significativamente según la fase del ciclo menstrual.","faqs_es":[{"question":"¿En qué momento de mi ciclo debo analizarme?","answer":"Depende de lo que quieras saber. El día 3 (folicular temprano) es mejor para FSH, LH y estradiol basal. El día 21 (lútea media) es mejor para progesterona para confirmar ovulación. Si no estás segura, el día 3 suele ser más informativo."},{"question":"¿Puedo analizarme mientras tomo anticonceptivos?","answer":"Puedes, pero los resultados estarán afectados. Los anticonceptivos suprimen tus hormonas naturales, así que FSH, LH y las hormonas ováricas estarán bajas. Para una imagen verdadera, analízate 3+ meses después de dejar los anticonceptivos hormonales."},{"question":"¿Por qué analizar testosterona en mujeres?","answer":"La testosterona es importante para la energía, libido, masa muscular y humor de las mujeres. La testosterona baja causa fatiga y baja libido. La testosterona alta (como en SOP) puede causar acné, crecimiento de vello y períodos irregulares."},{"question":"¿Qué es DHEA-S y por qué analizarla?","answer":"DHEA-S es producida por tus glándulas adrenales y es precursora tanto del estrógeno como de la testosterona. Los niveles bajos pueden causar fatiga y baja libido. Disminuye naturalmente con la edad."}]},{"id":"panel-hormone-male","name":"Male Hormone Panel","description":"Comprehensive male hormone assessment including testosterone, SHBG, estradiol, DHEA-S, and cortisol.","category":"hormone","tests":["testosterone-free-total","shbg","dhea-s","cortisol-total","estradiol-ultrasensitive"],"price":101,"savings":9,"fastingRequired":false,"metaTitle":"Male Hormone Panel - $96 (Save $5) | Testosterone & Hormone Testing | Justlabs","metaDescription":"Get a complete male hormone panel for $96. Includes testosterone (free & total), SHBG, estradiol, DHEA-S, and cortisol. Understand low T and hormonal balance. Results in 2-3 days.","h1Title":"Male Hormone Panel - Complete Testosterone & Hormone Assessment","shortSummary":"This comprehensive panel measures testosterone (free and total), plus the supporting hormones that affect how testosterone works in your body: SHBG, estradiol sensitive, DHEA-S, and cortisol.","longDescription":"Testosterone affects energy, mood, muscle mass, body fat, libido, and overall vitality. But total testosterone alone doesn't tell the whole story. This panel provides the complete picture:\n\n• Total & Free Testosterone - Your total T and the bioavailable portion\n• SHBG - The protein that binds testosterone (high SHBG = less free T)\n• Estradiol - Estrogen in men; too high or low causes problems\n• DHEA-S - Adrenal precursor hormone that declines with age\n• Cortisol - Stress hormone that can suppress testosterone\n\nUnderstanding these relationships reveals why some men with \"normal\" testosterone still have symptoms of low T.","whatItMeasures":"This panel measures 5 key hormones: Total Testosterone (overall production), Free Testosterone (bioavailable portion), SHBG (binding protein that reduces free T), Estradiol (estrogen - yes, men need some too), DHEA-S (adrenal hormone), and Cortisol (stress hormone).","whoIsItFor":"Men experiencing fatigue, low libido, difficulty building muscle, increased body fat, mood changes, or brain fog. Also for those over 35 wanting a baseline, men monitoring TRT, and anyone wanting to optimize their hormonal health.","symptomsAddressed":["Low libido","Erectile dysfunction","Fatigue","Loss of muscle mass","Increased body fat","Depression","Brain fog","Low motivation","Poor sleep","Irritability"],"conditionsScreened":["Low testosterone (hypogonadism)","High estrogen","High SHBG","Adrenal dysfunction","Cortisol imbalance","Andropause"],"whenToTest":"Test in the morning between 7-10 AM when testosterone peaks. No fasting required, but morning testing is important for accurate testosterone and cortisol results.","preparationInstructions":"Test in the morning (7-10 AM) for accurate results. No fasting needed. Get good sleep the night before if possible, as poor sleep can temporarily lower testosterone. Avoid intense exercise the day before.","resultsOverview":"Optimal ranges: Total Testosterone 500-900 ng/dL (some experts say >600 is optimal), Free Testosterone 10-25 pg/mL, SHBG 20-50 nmol/L, Estradiol 20-40 pg/mL, DHEA-S varies by age, Cortisol 10-20 mcg/dL.","faqs":[{"question":"Why test free testosterone, not just total?","answer":"Total testosterone includes both bound and unbound hormone. SHBG binds testosterone, making it unavailable. You can have normal total T but low free T if SHBG is high - and free T is what your body actually uses."},{"question":"Why is estradiol tested in men?","answer":"Men need some estrogen for brain function, bone health, and libido. But too much estrogen (often from testosterone converting to estradiol) causes symptoms like low libido, breast tissue growth, and fat gain."},{"question":"Why is sensitive estradiol recommended for men instead of the standard estradiol test?","answer":"Male estradiol levels are typically below 29 pg/mL — a range where standard immunoassays lose accuracy and can overestimate values due to cross-reactivity with other steroids. The LC/MS method eliminates this interference, giving you a reliable reading to guide treatment decisions like TRT dose adjustments."},{"question":"What causes low testosterone?","answer":"Common causes include aging, obesity, poor sleep, chronic stress, certain medications, and medical conditions. Lifestyle factors like exercise, sleep, and weight loss can significantly impact testosterone."},{"question":"Why is morning testing important?","answer":"Testosterone peaks in the morning and declines throughout the day. Testing at 7-10 AM gives the most accurate and consistent results. Afternoon testing may show falsely low levels."}],"relatedTests":["testosterone-free-total","igf-1","prolactin","tsh","hemoglobin-a1c"],"relatedPanels":["panel-longevity","panel-wellness-comprehensive","panel-metabolic-complete"],"name_es":"Panel Hormonal Masculino","whenToTest_es":"Analízate por la mañana entre 7-10 AM cuando la testosterona alcanza su pico. No se requiere ayuno, pero la prueba matutina es importante para resultados precisos de testosterona y cortisol.","metaDescription_es":"Obtén un panel hormonal masculino completo por $79. Incluye testosterona (libre y total), SHBG, estradiol, DHEA-S y cortisol. Entiende la T baja y el equilibrio hormonal. Resultados en 2-3 días.","preparationInstructions_es":"Analízate por la mañana (7-10 AM) para resultados precisos. No se necesita ayuno. Duerme bien la noche anterior si es posible, ya que dormir mal puede bajar temporalmente la testosterona. Evita ejercicio intenso el día anterior.","h1Title_es":"Panel Hormonal Masculino - Evaluación Completa de Testosterona y Hormonas","metaTitle_es":"Panel Hormonal Masculino - $79 (Ahorra $5) | Pruebas de Testosterona y Hormonas | Justlabs","symptomsAddressed_es":["Baja libido","Disfunción eréctil","Fatiga","Pérdida de masa muscular","Aumento de grasa corporal","Depresión","Niebla mental","Baja motivación","Mal sueño","Irritabilidad"],"whoIsItFor_es":"Hombres que experimentan fatiga, baja libido, dificultad para construir músculo, aumento de grasa corporal, cambios de humor o niebla mental. También para mayores de 35 que desean una línea base, hombres monitoreando TRT, y cualquiera que desee optimizar su salud hormonal.","resultsOverview_es":"Rangos óptimos: Testosterona Total 500-900 ng/dL (algunos expertos dicen >600 es óptimo), Testosterona Libre 10-25 pg/mL, SHBG 20-50 nmol/L, Estradiol 20-40 pg/mL, DHEA-S varía según la edad, Cortisol 10-20 mcg/dL.","longDescription_es":"La testosterona afecta la energía, el humor, la masa muscular, la grasa corporal, la libido y la vitalidad general. Pero la testosterona total sola no cuenta toda la historia. Este panel proporciona la imagen completa:\n\n• Testosterona Total y Libre - Tu T total y la porción biodisponible\n• SHBG - La proteína que une la testosterona (SHBG alta = menos T libre)\n• Estradiol - Estrógeno en hombres; demasiado alto o bajo causa problemas\n• DHEA-S - Hormona precursora adrenal que disminuye con la edad\n• Cortisol - Hormona del estrés que puede suprimir la testosterona\n\nEntender estas relaciones revela por qué algunos hombres con testosterona \"normal\" aún tienen síntomas de T baja.","conditionsScreened_es":["Testosterona baja (hipogonadismo)","Estrógeno alto","SHBG alta","Disfunción adrenal","Desequilibrio de cortisol","Andropausia"],"description_es":"Evaluación hormonal masculina integral que incluye testosterona, SHBG, estradiol, DHEA-S y cortisol.","shortSummary_es":"Este panel integral mide testosterona (libre y total), más las hormonas de apoyo que afectan cómo funciona la testosterona en tu cuerpo: SHBG, estradiol, DHEA-S y cortisol.","whatItMeasures_es":"Este panel mide 5 hormonas clave: Testosterona Total (producción general), Testosterona Libre (porción biodisponible), SHBG (proteína de unión que reduce la T libre), Estradiol (estrógeno - sí, los hombres también necesitan algo), DHEA-S (hormona adrenal) y Cortisol (hormona del estrés).","faqs_es":[{"question":"¿Por qué analizar testosterona libre, no solo total?","answer":"La testosterona total incluye tanto la hormona unida como la no unida. La SHBG une la testosterona, haciéndola no disponible. Puedes tener T total normal pero T libre baja si la SHBG está alta - y la T libre es lo que tu cuerpo realmente usa."},{"question":"¿Por qué se analiza estradiol en hombres?","answer":"Los hombres necesitan algo de estrógeno para la función cerebral, la salud ósea y la libido. Pero demasiado estrógeno (a menudo por conversión de testosterona a estradiol) causa síntomas como baja libido, crecimiento de tejido mamario y aumento de grasa."},{"question":"¿Qué causa la testosterona baja?","answer":"Las causas comunes incluyen envejecimiento, obesidad, mal sueño, estrés crónico, ciertos medicamentos y condiciones médicas. Factores de estilo de vida como ejercicio, sueño y pérdida de peso pueden impactar significativamente la testosterona."},{"question":"¿Por qué es importante la prueba matutina?","answer":"La testosterona alcanza su pico por la mañana y disminuye a lo largo del día. Analizarte a las 7-10 AM da los resultados más precisos y consistentes. Las pruebas por la tarde pueden mostrar niveles falsamente bajos."}]},{"id":"panel-fertility-female","name":"Female Fertility Panel","description":"Comprehensive fertility assessment including AMH, FSH, LH, estradiol, and prolactin.","category":"fertility","tests":["amh","fsh","lh","estradiol","prolactin"],"price":151,"savings":8,"fastingRequired":false,"popular":true,"metaTitle":"Female Fertility Panel - $145 (Save $7) | AMH & Ovarian Reserve Testing | Justlabs","metaDescription":"Check your fertility markers for $145. Includes AMH (ovarian reserve), FSH, LH, estradiol, and prolactin. Understand your fertility timeline. Results in 2-3 days.","h1Title":"Female Fertility Panel - Comprehensive Fertility Assessment","shortSummary":"This panel measures the key markers of female fertility: AMH (your egg reserve), reproductive hormones (FSH, LH, estradiol), and prolactin. Essential for understanding your fertility timeline.","longDescription":"Whether you're planning for pregnancy now or in the future, understanding your fertility is empowering. This panel provides crucial insights:\n\n• AMH (Anti-Müllerian Hormone) - The best indicator of your remaining egg supply\n• FSH - Elevated levels suggest diminished ovarian reserve\n• LH - Works with FSH to regulate your cycle and trigger ovulation\n• Estradiol - Low or high levels on Day 3 can indicate fertility issues\n• Prolactin - Elevated levels can suppress ovulation\n\nThese markers help you and your doctor understand your fertility potential and make informed decisions about family planning.","whatItMeasures":"This panel measures 5 fertility-related hormones: AMH (the best predictor of remaining egg reserve), FSH (ovarian function), LH (ovulation signal), Estradiol (primary estrogen), and Prolactin (can interfere with ovulation if elevated).","whoIsItFor":"Women considering pregnancy in the future who want to know their timeline, those who've been trying to conceive, women over 30 wanting a fertility baseline, anyone with irregular periods, and those considering egg freezing or IVF.","symptomsAddressed":["Difficulty conceiving","Irregular periods","Absent periods","Short cycles","Spotting between periods","Early miscarriages"],"conditionsScreened":["Diminished ovarian reserve","Primary ovarian insufficiency","Anovulation","Hyperprolactinemia","PCOS","Pituitary issues affecting fertility"],"whenToTest":"Test on Day 3 of your menstrual cycle (Day 1 = first day of full period flow). AMH can be tested any time, but FSH, LH, and estradiol are most informative on Day 3. No fasting required.","preparationInstructions":"Test on Day 3 of your cycle for best results. No fasting needed. Note that birth control hormones will affect FSH, LH, and estradiol results (AMH is less affected). For accurate results, test 3+ months after stopping hormonal birth control.","resultsOverview":"Day 3 targets: AMH >1.0 ng/mL (higher is better, <1.0 suggests diminished reserve), FSH <10 mIU/mL (>10 suggests diminished reserve), LH similar to FSH, Estradiol <80 pg/mL (if high, FSH may be falsely low), Prolactin <25 ng/mL.","faqs":[{"question":"What is AMH and why is it important?","answer":"AMH (Anti-Müllerian Hormone) is produced by your ovarian follicles and reflects your egg reserve. It's the most reliable marker of how many eggs you have remaining. Unlike other hormones, it stays relatively stable throughout your cycle."},{"question":"Can this panel predict when I'll go through menopause?","answer":"AMH can give an indication of your remaining reproductive years. Very low AMH suggests a shorter fertility window. However, it can't predict exact timing, and low AMH doesn't mean you can't get pregnant."},{"question":"Why do I need to test on Day 3?","answer":"FSH, LH, and estradiol change dramatically throughout your cycle. Day 3 (early follicular phase) provides a baseline that's comparable across cycles and is the standard timing used in fertility medicine."},{"question":"What if my results show diminished ovarian reserve?","answer":"Diminished reserve doesn't mean you can't conceive - it means you may have less time. Many women with low AMH conceive naturally. Results help you make informed decisions about timing and whether to pursue treatments like egg freezing."}],"relatedTests":["tsh","vitamin-d","progesterone","testosterone-free-total"],"relatedPanels":["panel-hormone-female","panel-thyroid-complete","panel-wellness-comprehensive"],"name_es":"Panel de Fertilidad Femenina","whenToTest_es":"Analiza el día 3 de tu ciclo menstrual (Día 1 = primer día de flujo completo del período). La AMH puede analizarse en cualquier momento, pero FSH, LH y estradiol son más informativos el día 3. No se requiere ayuno.","metaDescription_es":"Revisa tus marcadores de fertilidad por $134. Incluye AMH (reserva ovárica), FSH, LH, estradiol y prolactina. Entiende tu línea de tiempo de fertilidad. Resultados en 2-3 días.","preparationInstructions_es":"Analiza el día 3 de tu ciclo para mejores resultados. No se necesita ayuno. Ten en cuenta que las hormonas anticonceptivas afectarán los resultados de FSH, LH y estradiol (la AMH se afecta menos). Para resultados precisos, analiza 3+ meses después de dejar los anticonceptivos hormonales.","h1Title_es":"Panel de Fertilidad Femenina - Evaluación Integral de Fertilidad","metaTitle_es":"Panel de Fertilidad Femenina - $134 (Ahorra $5) | Pruebas de AMH y Reserva Ovárica | Justlabs","symptomsAddressed_es":["Dificultad para concebir","Períodos irregulares","Ausencia de períodos","Ciclos cortos","Manchado entre períodos","Abortos espontáneos tempranos"],"whoIsItFor_es":"Mujeres que consideran embarazo en el futuro y quieren conocer su línea de tiempo, quienes han estado tratando de concebir, mujeres mayores de 30 que desean una línea base de fertilidad, cualquiera con períodos irregulares, y quienes consideran congelación de óvulos o FIV.","resultsOverview_es":"Objetivos del día 3: AMH >1.0 ng/mL (más alto es mejor, <1.0 sugiere reserva disminuida), FSH <10 mIU/mL (>10 sugiere reserva disminuida), LH similar a FSH, Estradiol <80 pg/mL (si está alto, la FSH puede estar falsamente baja), Prolactina <25 ng/mL.","longDescription_es":"Ya sea que estés planeando un embarazo ahora o en el futuro, entender tu fertilidad es empoderador. Este panel proporciona información crucial:\n\n• AMH (Hormona Antimülleriana) - El mejor indicador de tu suministro restante de óvulos\n• FSH - Los niveles elevados sugieren reserva ovárica disminuida\n• LH - Trabaja con FSH para regular tu ciclo y desencadenar la ovulación\n• Estradiol - Niveles bajos o altos en el día 3 pueden indicar problemas de fertilidad\n• Prolactina - Los niveles elevados pueden suprimir la ovulación\n\nEstos marcadores te ayudan a ti y a tu médico a entender tu potencial de fertilidad y tomar decisiones informadas sobre planificación familiar.","conditionsScreened_es":["Reserva ovárica disminuida","Insuficiencia ovárica primaria","Anovulación","Hiperprolactinemia","SOP","Problemas pituitarios que afectan la fertilidad"],"description_es":"Evaluación integral de fertilidad que incluye AMH, FSH, LH, estradiol y prolactina.","shortSummary_es":"Este panel mide los marcadores clave de la fertilidad femenina: AMH (tu reserva de óvulos), hormonas reproductivas (FSH, LH, estradiol) y prolactina. Esencial para entender tu línea de tiempo de fertilidad.","whatItMeasures_es":"Este panel mide 5 hormonas relacionadas con la fertilidad: AMH (el mejor predictor de la reserva de óvulos restante), FSH (función ovárica), LH (señal de ovulación), Estradiol (estrógeno primario) y Prolactina (puede interferir con la ovulación si está elevada).","faqs_es":[{"question":"¿Qué es la AMH y por qué es importante?","answer":"La AMH (Hormona Antimülleriana) es producida por tus folículos ováricos y refleja tu reserva de óvulos. Es el marcador más confiable de cuántos óvulos te quedan. A diferencia de otras hormonas, se mantiene relativamente estable a lo largo de tu ciclo."},{"question":"¿Puede este panel predecir cuándo entraré en menopausia?","answer":"La AMH puede dar una indicación de tus años reproductivos restantes. Una AMH muy baja sugiere una ventana de fertilidad más corta. Sin embargo, no puede predecir el momento exacto, y una AMH baja no significa que no puedas quedar embarazada."},{"question":"¿Por qué necesito analizarme el día 3?","answer":"FSH, LH y estradiol cambian dramáticamente a lo largo de tu ciclo. El día 3 (fase folicular temprana) proporciona una línea base que es comparable entre ciclos y es el momento estándar usado en medicina de fertilidad."},{"question":"¿Qué pasa si mis resultados muestran reserva ovárica disminuida?","answer":"Reserva disminuida no significa que no puedas concebir - significa que puedes tener menos tiempo. Muchas mujeres con AMH baja conciben naturalmente. Los resultados te ayudan a tomar decisiones informadas sobre el momento y si buscar tratamientos como congelación de óvulos."}]},{"id":"panel-vitamin-mineral","name":"Vitamin & Mineral Panel","description":"Essential nutrient status including Vitamin D, B12, Folate, Iron & TIBC, Ferritin, and Magnesium.","category":"vitamin","tests":["vitamin-d","vitamin-b12","folate-serum","iron-total-tibc","ferritin","magnesium-serum"],"price":64,"savings":5,"fastingRequired":true,"metaTitle":"Vitamin & Mineral Panel - $62 | Nutrient Deficiency Testing | Justlabs","metaDescription":"Check your essential nutrients for $62. Includes Vitamin D, B12, Folate, Iron, Ferritin, and Magnesium. Detect deficiencies causing fatigue. Results in 1-3 days.","h1Title":"Vitamin & Mineral Panel - Essential Nutrient Testing","shortSummary":"This panel tests the most commonly deficient nutrients: Vitamin D, B12, Folate, Iron (with complete iron studies), Ferritin, and Magnesium - the building blocks your body needs to function optimally.","longDescription":"Nutrient deficiencies are surprisingly common and cause symptoms that are often mistaken for other conditions. This panel covers the essential nutrients:\n\n• Vitamin D - Deficient in 40%+ of Americans; affects bones, immunity, mood\n• Vitamin B12 - Essential for nerves, energy, and brain function\n• Folate - Critical for cell division and preventing birth defects\n• Iron & TIBC - Complete iron status including binding capacity\n• Ferritin - Your iron stores; often low even when iron is \"normal\"\n• Magnesium - It affects 300+ body functions\n\nIdentifying and correcting deficiencies can dramatically improve energy, mood, and overall health.","whatItMeasures":"This panel measures 6 essential nutrients: Vitamin D (25-hydroxy), Vitamin B12, Serum Folate, Iron with Total Iron Binding Capacity (TIBC) and saturation, Ferritin (iron storage), and Magnesium.","whoIsItFor":"Anyone with fatigue, brain fog, hair loss, or weakness. Also recommended for vegetarians/vegans (B12 deficiency risk), women with heavy periods (iron deficiency), older adults (B12 absorption decreases), those with limited sun exposure (Vitamin D), and anyone wanting to optimize their nutrition.","symptomsAddressed":["Fatigue","Brain fog","Hair loss","Weakness","Depression","Anxiety","Restless legs","Numbness/tingling","Poor sleep","Frequent illness","Muscle cramps"],"conditionsScreened":["Vitamin D deficiency","B12 deficiency","Iron deficiency","Anemia","Folate deficiency","Magnesium deficiency","Malabsorption"],"whenToTest":"Fasting for 8 hours is required for accurate iron studies. Morning testing is ideal. Test before starting supplements to establish a baseline, and retest 2-3 months after starting supplementation.","preparationInstructions":"Fast for 8 hours before your blood draw (water is fine). If taking supplements, continue as usual - your results will show your levels on your current regimen. Note any supplements you're taking.","resultsOverview":"Optimal targets: Vitamin D 40-60 ng/mL, B12 >500 pg/mL, Folate >10 ng/mL, Ferritin 50-150 ng/mL, Iron saturation 25-45%, Magnesium 5.0-6.5 mg/dL. Lab \"normal\" ranges often include suboptimal levels that still cause symptoms.","faqs":[{"question":"Why test RBC Magnesium instead of regular magnesium?","answer":"Serum magnesium only measures what's in your blood (1% of total body magnesium). RBC Magnesium measures what's inside your cells, giving a much more accurate picture of your true magnesium status."},{"question":"Why is ferritin included if iron is already tested?","answer":"Iron levels fluctuate throughout the day, but ferritin reflects your total iron stores. You can have normal serum iron but low ferritin - meaning your reserves are depleted. Many people feel better when ferritin is above 50, even if technically \"normal.\""},{"question":"Should I stop supplements before testing?","answer":"It depends on your goal. To see your levels on your current regimen, continue supplements. To see your baseline without supplements, stop for at least 1 week (or 2-3 months for accurate ferritin after stopping iron)."},{"question":"How long does it take to correct deficiencies?","answer":"It varies. Vitamin D typically takes 2-3 months. B12 can improve within weeks but full repletion takes months. Ferritin is slow - expect 3-6 months with supplementation. Retest after 2-3 months to track progress."}],"relatedTests":["methylmalonic-acid","zinc","copper","selenium","iodine"],"relatedPanels":["panel-energy-fatigue","panel-wellness-comprehensive","panel-thyroid-complete"],"name_es":"Panel de Vitaminas y Minerales","whenToTest_es":"Se requiere ayuno de 8 horas para estudios precisos de hierro. Las pruebas matutinas son ideales. Analiza antes de comenzar suplementos para establecer una línea base, y vuelve a analizar 2-3 meses después de comenzar la suplementación.","metaDescription_es":"Revisa tus nutrientes esenciales por $62. Incluye vitamina D, B12, folato, hierro, ferritina y magnesio. Detecta deficiencias que causan fatiga. Resultados en 1-3 días.","preparationInstructions_es":"Ayuna 8 horas antes de tu extracción de sangre (el agua está bien). Si tomas suplementos, continúa como de costumbre - tus resultados mostrarán tus niveles con tu régimen actual. Anota cualquier suplemento que estés tomando.","h1Title_es":"Panel de Vitaminas y Minerales - Pruebas de Nutrientes Esenciales","metaTitle_es":"Panel de Vitaminas y Minerales - $62 | Pruebas de Deficiencia de Nutrientes | Justlabs","symptomsAddressed_es":["Fatiga","Niebla mental","Caída del cabello","Debilidad","Depresión","Ansiedad","Piernas inquietas","Entumecimiento/hormigueo","Mal sueño","Enfermedad frecuente","Calambres musculares"],"whoIsItFor_es":"Cualquier persona con fatiga, niebla mental, caída del cabello o debilidad. También recomendado para vegetarianos/veganos (riesgo de deficiencia de B12), mujeres con períodos abundantes (deficiencia de hierro), adultos mayores (la absorción de B12 disminuye), quienes tienen exposición solar limitada (vitamina D), y cualquiera que desee optimizar su nutrición.","resultsOverview_es":"Objetivos óptimos: Vitamina D 40-60 ng/mL, B12 >500 pg/mL, Folato >10 ng/mL, Ferritina 50-150 ng/mL, Saturación de hierro 25-45%, Magnesio 5.0-6.5 mg/dL. Los rangos \"normales\" de laboratorio a menudo incluyen niveles subóptimos que aún causan síntomas.","longDescription_es":"Las deficiencias de nutrientes son sorprendentemente comunes y causan síntomas que a menudo se confunden con otras condiciones. Este panel cubre los nutrientes esenciales:\n\n• Vitamina D - Deficiente en más del 40% de los estadounidenses; afecta huesos, inmunidad, humor\n• Vitamina B12 - Esencial para nervios, energía y función cerebral\n• Folato - Crítico para la división celular y prevención de defectos de nacimiento\n• Hierro y TIBC - Estado completo de hierro incluyendo capacidad de unión\n• Ferritina - Tus reservas de hierro; a menudo baja incluso cuando el hierro es \"normal\"\n• Magnesio - Afecta más de 300 funciones corporales\n\nIdentificar y corregir deficiencias puede mejorar dramáticamente la energía, el humor y la salud general.","conditionsScreened_es":["Deficiencia de vitamina D","Deficiencia de B12","Deficiencia de hierro","Anemia","Deficiencia de folato","Deficiencia de magnesio","Malabsorción"],"description_es":"Estado de nutrientes esenciales que incluye vitamina D, B12, folato, hierro y TIBC, ferritina y magnesio.","shortSummary_es":"Este panel analiza los nutrientes más comúnmente deficientes: Vitamina D, B12, Folato, Hierro (con estudios completos de hierro), Ferritina y Magnesio - los bloques de construcción que tu cuerpo necesita para funcionar óptimamente.","whatItMeasures_es":"Este panel mide 6 nutrientes esenciales: Vitamina D (25-hidroxi), Vitamina B12, Folato Sérico, Hierro con Capacidad Total de Unión de Hierro (TIBC) y saturación, Ferritina (almacenamiento de hierro) y Magnesio.","faqs_es":[{"question":"¿Por qué analizar Magnesio RBC en lugar de magnesio regular?","answer":"El magnesio sérico solo mide lo que está en tu sangre (1% del magnesio corporal total). El Magnesio RBC mide lo que está dentro de tus células, dando una imagen mucho más precisa de tu verdadero estado de magnesio."},{"question":"¿Por qué se incluye ferritina si ya se analiza el hierro?","answer":"Los niveles de hierro fluctúan a lo largo del día, pero la ferritina refleja tus reservas totales de hierro. Puedes tener hierro sérico normal pero ferritina baja - lo que significa que tus reservas están agotadas. Muchas personas se sienten mejor cuando la ferritina está por encima de 50, incluso si técnicamente es \"normal\"."},{"question":"¿Debo dejar los suplementos antes de analizarme?","answer":"Depende de tu objetivo. Para ver tus niveles con tu régimen actual, continúa los suplementos. Para ver tu línea base sin suplementos, déjalos por al menos 1 semana (o 2-3 meses para ferritina precisa después de dejar el hierro)."},{"question":"¿Cuánto tiempo toma corregir las deficiencias?","answer":"Varía. La vitamina D típicamente toma 2-3 meses. La B12 puede mejorar en semanas pero la repleción completa toma meses. La ferritina es lenta - espera 3-6 meses con suplementación. Vuelve a analizar después de 2-3 meses para seguir el progreso."}]},{"id":"panel-energy-fatigue","name":"Energy & Fatigue Panel","description":"Investigate causes of fatigue with thyroid, iron, B12, Vitamin D, and metabolic markers.","category":"general","tests":["tsh","free-t4","cbc-diff","ferritin","vitamin-b12","vitamin-d","cmp"],"price":72,"savings":4.5,"fastingRequired":true,"popular":true,"metaTitle":"Energy & Fatigue Panel - $68 (Save $4.5) | Find the Cause of Fatigue | Justlabs","metaDescription":"Tired all the time? Get comprehensive fatigue testing for $61. Includes thyroid, iron, B12, Vitamin D, CBC, and metabolic markers. Find answers. Results in 1-2 days.","h1Title":"Energy & Fatigue Panel - Comprehensive Fatigue Testing","shortSummary":"Fatigue has many causes - this panel tests for the most common ones: thyroid dysfunction, iron deficiency, vitamin deficiencies, anemia, and metabolic issues. Stop guessing, start knowing.","longDescription":"Fatigue is one of the most common complaints, but it's also one of the most undertested. This panel systematically checks for the major causes:\n\n• TSH & Free T4 - Thyroid problems are a leading cause of fatigue\n• CBC with Differential - Detects anemia and blood cell abnormalities\n• Ferritin - Iron deficiency causes fatigue even without anemia\n• Vitamin B12 - Low B12 causes fatigue and brain fog\n• Vitamin D - Deficiency is linked to fatigue and depression\n• Comprehensive Metabolic Panel - Liver, kidney function, blood sugar, electrolytes\n\nInstead of random tests, this panel provides a systematic approach to understanding your fatigue.","whatItMeasures":"This panel measures 7 categories: thyroid function (TSH, Free T4), blood cells (CBC with differential), iron stores (ferritin), vitamins (B12, D), and 14 metabolic markers (glucose, electrolytes, kidney/liver function). Over 35 individual biomarkers to comprehensively evaluate fatigue.","whoIsItFor":"Anyone experiencing unexplained fatigue, low energy, or feeling \"tired but wired.\" Also for those who need afternoon naps, feel exhausted despite sleeping, have brain fog, or feel run down. Perfect starting point when you don't know what's causing your fatigue.","symptomsAddressed":["Fatigue","Low energy","Brain fog","Difficulty waking up","Afternoon slump","Feeling wired but tired","Poor exercise recovery","Weakness","Difficulty concentrating"],"conditionsScreened":["Hypothyroidism","Hyperthyroidism","Iron deficiency","Anemia","B12 deficiency","Vitamin D deficiency","Diabetes/prediabetes","Liver issues","Kidney issues","Electrolyte imbalance"],"whenToTest":"Fasting for 8 hours is required for accurate glucose results. Morning testing is ideal for thyroid markers. This is a great first-line panel when investigating fatigue.","preparationInstructions":"Fast for 8 hours before your blood draw (water is fine). Schedule for morning when possible. Continue any medications as normal. List all supplements you're taking.","resultsOverview":"Key targets: TSH 0.5-2.5, Free T4 1.0-1.5, Ferritin >50, B12 >500, Vitamin D 40-60, normal CBC ranges. Results will highlight any abnormalities that could be causing your fatigue.","faqs":[{"question":"Why is this better than just testing thyroid?","answer":"Fatigue has many causes. While thyroid is common, so is iron deficiency, B12 deficiency, vitamin D deficiency, and blood sugar issues. Testing just one thing often misses the real cause."},{"question":"What if everything comes back normal?","answer":"If these tests are normal, fatigue may be caused by sleep issues, stress/cortisol imbalance, other hormone issues, or conditions not captured here. Results help narrow down what to investigate next."},{"question":"Why test ferritin instead of just iron?","answer":"Ferritin measures your iron reserves, which can be depleted even when serum iron is normal. Many people with \"normal\" iron have low ferritin and still experience fatigue. Ferritin is the more sensitive marker."},{"question":"How quickly can I feel better after finding an issue?","answer":"It depends on the cause. Thyroid medication can improve symptoms in weeks. B12 shots may help quickly. Iron repletion takes 3-6 months. Knowing the cause lets you start targeted treatment."}],"relatedTests":["cortisol-total","hemoglobin-a1c","hs-crp","free-t3"],"relatedPanels":["panel-thyroid-complete","panel-vitamin-mineral","panel-wellness-comprehensive"],"name_es":"Panel de Energía y Fatiga","whenToTest_es":"Se requiere ayuno de 8 horas para resultados precisos de glucosa. Las pruebas matutinas son ideales para los marcadores tiroideos. Este es un excelente panel de primera línea cuando investigas fatiga.","metaDescription_es":"¿Cansado todo el tiempo? Obtén pruebas completas de fatiga por $61. Incluye tiroides, hierro, B12, vitamina D, hemograma y marcadores metabólicos. Encuentra respuestas. Resultados en 1-2 días.","preparationInstructions_es":"Ayuna 8 horas antes de tu extracción de sangre (el agua está bien). Programa para la mañana cuando sea posible. Continúa con cualquier medicamento como de costumbre. Lista todos los suplementos que estás tomando.","h1Title_es":"Panel de Energía y Fatiga - Pruebas Completas de Fatiga","metaTitle_es":"Panel de Energía y Fatiga - $68 (Ahorra $4.5) | Encuentra la Causa de la Fatiga | Justlabs","symptomsAddressed_es":["Fatiga","Baja energía","Niebla mental","Dificultad para despertar","Bajón de la tarde","Sentirse acelerado pero cansado","Mala recuperación del ejercicio","Debilidad","Dificultad para concentrarse"],"whoIsItFor_es":"Cualquier persona que experimenta fatiga inexplicable, baja energía o que se siente \"cansada pero acelerada\". También para quienes necesitan siestas por la tarde, se sienten exhaustos a pesar de dormir, tienen niebla mental o se sienten agotados. Punto de partida perfecto cuando no sabes qué está causando tu fatiga.","resultsOverview_es":"Objetivos clave: TSH 0.5-2.5, T4 Libre 1.0-1.5, Ferritina >50, B12 >500, Vitamina D 40-60, rangos normales de hemograma. Los resultados destacarán cualquier anormalidad que pueda estar causando tu fatiga.","longDescription_es":"La fatiga es una de las quejas más comunes, pero también es una de las menos analizadas. Este panel verifica sistemáticamente las causas principales:\n\n• TSH y T4 Libre - Los problemas de tiroides son una causa principal de fatiga\n• Hemograma con Diferencial - Detecta anemia y anormalidades de células sanguíneas\n• Ferritina - La deficiencia de hierro causa fatiga incluso sin anemia\n• Vitamina B12 - La B12 baja causa fatiga y niebla mental\n• Vitamina D - La deficiencia está relacionada con fatiga y depresión\n• Panel Metabólico Integral - Función hepática, renal, azúcar en sangre, electrolitos\n\nEn lugar de pruebas aleatorias, este panel proporciona un enfoque sistemático para entender tu fatiga.","conditionsScreened_es":["Hipotiroidismo","Hipertiroidismo","Deficiencia de hierro","Anemia","Deficiencia de B12","Deficiencia de vitamina D","Diabetes/prediabetes","Problemas hepáticos","Problemas renales","Desequilibrio de electrolitos"],"description_es":"Investiga las causas de la fatiga con tiroides, hierro, B12, vitamina D y marcadores metabólicos.","shortSummary_es":"La fatiga tiene muchas causas - este panel analiza las más comunes: disfunción tiroidea, deficiencia de hierro, deficiencias de vitaminas, anemia y problemas metabólicos. Deja de adivinar, empieza a saber.","whatItMeasures_es":"Este panel mide 7 categorías: función tiroidea (TSH, T4 Libre), células sanguíneas (hemograma con diferencial), reservas de hierro (ferritina), vitaminas (B12, D) y 14 marcadores metabólicos (glucosa, electrolitos, función renal/hepática). Más de 35 biomarcadores individuales para evaluar la fatiga de manera integral.","faqs_es":[{"question":"¿Por qué es esto mejor que solo analizar tiroides?","answer":"La fatiga tiene muchas causas. Aunque la tiroides es común, también lo son la deficiencia de hierro, deficiencia de B12, deficiencia de vitamina D y problemas de azúcar en sangre. Analizar solo una cosa a menudo no detecta la causa real."},{"question":"¿Qué pasa si todo sale normal?","answer":"Si estas pruebas son normales, la fatiga puede ser causada por problemas de sueño, desequilibrio de estrés/cortisol, otros problemas hormonales o condiciones no capturadas aquí. Los resultados ayudan a reducir qué investigar después."},{"question":"¿Por qué analizar ferritina en lugar de solo hierro?","answer":"La ferritina mide tus reservas de hierro, que pueden estar agotadas incluso cuando el hierro sérico es normal. Muchas personas con hierro \"normal\" tienen ferritina baja y aún experimentan fatiga. La ferritina es el marcador más sensible."},{"question":"¿Qué tan rápido puedo sentirme mejor después de encontrar un problema?","answer":"Depende de la causa. La medicación tiroidea puede mejorar los síntomas en semanas. Las inyecciones de B12 pueden ayudar rápidamente. La reposición de hierro toma 3-6 meses. Conocer la causa te permite comenzar un tratamiento dirigido."}]},{"id":"panel-inflammation","name":"Inflammation Panel","description":"Assess systemic inflammation with hs-CRP, homocysteine, ferritin, and CBC.","category":"inflammation","tests":["hs-crp","homocysteine","ferritin","cbc-diff"],"price":52,"savings":2,"fastingRequired":true,"metaTitle":"Inflammation Panel - $46 (Save $3) | hs-CRP & Inflammation Testing | Justlabs","metaDescription":"Test your inflammation levels for $46. Includes hs-CRP, homocysteine, ferritin, and CBC. Chronic inflammation drives disease. Find out if yours is elevated. Results in 1-3 days.","h1Title":"Inflammation Panel - Systemic Inflammation Assessment","shortSummary":"Chronic inflammation is the hidden driver of heart disease, cancer, and accelerated aging. This panel measures the key markers that reveal whether silent inflammation is damaging your body.","longDescription":"You can't feel chronic inflammation, but it silently contributes to heart disease, cancer, dementia, and premature aging. This panel measures the markers that reveal your inflammatory status:\n\n• hs-CRP (High-Sensitivity C-Reactive Protein) - The gold standard for cardiovascular inflammation\n• Homocysteine - Inflammatory amino acid linked to heart disease and B vitamin status\n• Ferritin - High ferritin indicates inflammation (as well as iron status)\n• CBC with Differential - White blood cell patterns reveal immune activation\n\nElevated inflammation is modifiable through diet, exercise, sleep, stress management, and sometimes targeted supplements.","whatItMeasures":"This panel measures 4 inflammation markers: hs-CRP (general inflammation and cardiovascular risk), Homocysteine (inflammatory amino acid), Ferritin (iron storage and inflammation marker), and Complete Blood Count with white cell differential (immune cell activity).","whoIsItFor":"Anyone concerned about heart disease risk, those with autoimmune conditions, people with chronic pain or fatigue, anyone with family history of inflammatory diseases, and health-conscious individuals who want to monitor their inflammatory status.","symptomsAddressed":["Chronic pain","Fatigue","Joint stiffness","Brain fog","Frequent illness","Slow healing","Digestive issues","Skin problems"],"conditionsScreened":["Chronic inflammation","Cardiovascular disease risk","Autoimmune activity","Elevated homocysteine","Infection","Metabolic inflammation"],"whenToTest":"Fasting for 8 hours is recommended for accurate homocysteine results. Avoid testing during acute illness or infection, as this will temporarily elevate inflammatory markers.","preparationInstructions":"Fast for 8 hours before testing (water is fine). Don't test if you're acutely sick - wait until recovered for accurate baseline results. Note any anti-inflammatory medications you're taking.","resultsOverview":"Optimal targets: hs-CRP <1.0 mg/L (low cardiovascular risk), Homocysteine <10 µmol/L, Ferritin 50-150 ng/mL (high ferritin with normal iron may indicate inflammation), normal CBC ranges. Elevated hs-CRP without obvious cause warrants lifestyle investigation.","faqs":[{"question":"What causes chronic inflammation?","answer":"Common causes include poor diet (processed foods, sugar), obesity, lack of exercise, chronic stress, poor sleep, smoking, and underlying conditions. Many causes are modifiable through lifestyle changes."},{"question":"How is hs-CRP different from regular CRP?","answer":"hs-CRP (high-sensitivity) measures very low levels of inflammation relevant to heart disease risk. Regular CRP is used for acute inflammation like infections. hs-CRP is the test for chronic, low-grade inflammation."},{"question":"Why is high ferritin an inflammation marker?","answer":"Ferritin rises during inflammation as an \"acute phase reactant.\" If ferritin is elevated but iron levels are normal, it may indicate inflammation rather than iron overload. Context matters."},{"question":"Can I lower my inflammation?","answer":"Yes! Anti-inflammatory lifestyle changes include: eating whole foods, exercising regularly, managing stress, getting 7-9 hours of sleep, maintaining healthy weight, and reducing alcohol. Many people see significant hs-CRP reductions within months."}],"relatedTests":["omega-check","vitamin-d","hemoglobin-a1c","uric-acid"],"relatedPanels":["panel-heart-health","panel-autoimmune-screen","panel-wellness-comprehensive"],"name_es":"Panel de Inflamación","whenToTest_es":"Se recomienda ayuno de 8 horas para resultados precisos de homocisteína. Evita analizarte durante enfermedad aguda o infección, ya que esto elevará temporalmente los marcadores inflamatorios.","metaDescription_es":"Analiza tus niveles de inflamación por $46. Incluye hs-CRP, homocisteína, ferritina y hemograma. La inflamación crónica impulsa enfermedades. Descubre si la tuya está elevada. Resultados en 1-3 días.","preparationInstructions_es":"Ayuna 8 horas antes de la prueba (el agua está bien). No te analices si estás agudamente enfermo - espera hasta recuperarte para resultados basales precisos. Anota cualquier medicamento antiinflamatorio que estés tomando.","h1Title_es":"Panel de Inflamación - Evaluación de Inflamación Sistémica","metaTitle_es":"Panel de Inflamación - $46 (Ahorra $3) | Pruebas de hs-CRP e Inflamación | Justlabs","symptomsAddressed_es":["Dolor crónico","Fatiga","Rigidez articular","Niebla mental","Enfermedad frecuente","Cicatrización lenta","Problemas digestivos","Problemas de piel"],"whoIsItFor_es":"Cualquier persona preocupada por el riesgo de enfermedad cardíaca, quienes tienen condiciones autoinmunes, personas con dolor crónico o fatiga, cualquiera con antecedentes familiares de enfermedades inflamatorias, e individuos conscientes de la salud que desean monitorear su estado inflamatorio.","resultsOverview_es":"Objetivos óptimos: hs-CRP <1.0 mg/L (bajo riesgo cardiovascular), Homocisteína <10 µmol/L, Ferritina 50-150 ng/mL (ferritina alta con hierro normal puede indicar inflamación), rangos normales de hemograma. hs-CRP elevado sin causa obvia amerita investigación del estilo de vida.","longDescription_es":"No puedes sentir la inflamación crónica, pero contribuye silenciosamente a la enfermedad cardíaca, el cáncer, la demencia y el envejecimiento prematuro. Este panel mide los marcadores que revelan tu estado inflamatorio:\n\n• hs-CRP (Proteína C-Reactiva de Alta Sensibilidad) - El estándar de oro para la inflamación cardiovascular\n• Homocisteína - Aminoácido inflamatorio relacionado con enfermedad cardíaca y estado de vitaminas B\n• Ferritina - La ferritina alta indica inflamación (así como estado de hierro)\n• Hemograma con Diferencial - Los patrones de glóbulos blancos revelan activación inmune\n\nLa inflamación elevada es modificable a través de dieta, ejercicio, sueño, manejo del estrés y a veces suplementos dirigidos.","conditionsScreened_es":["Inflamación crónica","Riesgo de enfermedad cardiovascular","Actividad autoinmune","Homocisteína elevada","Infección","Inflamación metabólica"],"description_es":"Evalúa la inflamación sistémica con hs-CRP, homocisteína, ferritina y hemograma.","shortSummary_es":"La inflamación crónica es el impulsor oculto de la enfermedad cardíaca, el cáncer y el envejecimiento acelerado. Este panel mide los marcadores clave que revelan si la inflamación silenciosa está dañando tu cuerpo.","whatItMeasures_es":"Este panel mide 4 marcadores de inflamación: hs-CRP (inflamación general y riesgo cardiovascular), Homocisteína (aminoácido inflamatorio), Ferritina (almacenamiento de hierro y marcador de inflamación) y Hemograma Completo con diferencial de glóbulos blancos (actividad de células inmunes).","faqs_es":[{"question":"¿Qué causa la inflamación crónica?","answer":"Las causas comunes incluyen mala dieta (alimentos procesados, azúcar), obesidad, falta de ejercicio, estrés crónico, mal sueño, tabaquismo y condiciones subyacentes. Muchas causas son modificables a través de cambios de estilo de vida."},{"question":"¿En qué se diferencia la hs-CRP de la CRP regular?","answer":"La hs-CRP (alta sensibilidad) mide niveles muy bajos de inflamación relevantes para el riesgo de enfermedad cardíaca. La CRP regular se usa para inflamación aguda como infecciones. La hs-CRP es la prueba para inflamación crónica de bajo grado."},{"question":"¿Por qué la ferritina alta es un marcador de inflamación?","answer":"La ferritina sube durante la inflamación como un \"reactante de fase aguda\". Si la ferritina está elevada pero los niveles de hierro son normales, puede indicar inflamación en lugar de sobrecarga de hierro. El contexto importa."},{"question":"¿Puedo bajar mi inflamación?","answer":"¡Sí! Los cambios de estilo de vida antiinflamatorios incluyen: comer alimentos integrales, hacer ejercicio regularmente, manejar el estrés, dormir 7-9 horas, mantener un peso saludable y reducir el alcohol. Muchas personas ven reducciones significativas de hs-CRP en meses."}]},{"id":"panel-autoimmune-screen","name":"Autoimmune Screening Panel","description":"Comprehensive autoimmune workup including ANA with reflex, Rheumatoid Factor, TPO & TG Antibodies, hs-CRP, and CBC.","category":"autoimmune","tests":["ana-titer-pattern","rheumatoid-factor","tpo-tg-antibodies","hs-crp","cbc-diff"],"price":63,"savings":4,"fastingRequired":false,"metaTitle":"Autoimmune Screening Panel - $60 (Save $5) | Justlabs","metaDescription":"Comprehensive autoimmune screening for $60. Includes ANA with reflex, Rheumatoid Factor, thyroid antibodies (TPO & TG), hs-CRP, and CBC. 5 tests in one panel.","h1Title":"Autoimmune Screening Panel - Comprehensive Autoimmune Assessment","shortSummary":"Our most thorough initial autoimmune workup covers systemic autoimmune markers (ANA, Rheumatoid Factor), thyroid autoimmunity (TPO & TG Antibodies), inflammation (hs-CRP), and blood cell analysis (CBC) — 5 tests in one panel.","longDescription":"Autoimmune diseases occur when your immune system mistakenly attacks your own tissues. They affect millions of people and can be difficult to diagnose. This panel covers the most important initial markers across both systemic and organ-specific autoimmunity:\n\n• ANA Screen with Reflex to Titer & Pattern - The gold standard screening test for systemic autoimmune conditions like lupus, Sjogren's, and scleroderma\n• Rheumatoid Factor - Elevated in rheumatoid arthritis and some other autoimmune conditions\n• TPO & TG Antibodies - Detects thyroid autoimmunity (Hashimoto's), the most common autoimmune condition\n• hs-CRP - Measures inflammation that often accompanies autoimmune activity\n• CBC with Differential - Can reveal anemia or abnormal white cells seen in autoimmune disease\n\nThis panel is a comprehensive starting point. It covers both systemic autoimmune conditions and Hashimoto's thyroiditis, which is the #1 autoimmune disease and often co-occurs with other autoimmune conditions.","whatItMeasures":"This panel includes 5 tests: ANA screen with automatic reflex to titer and pattern (antibodies against cell nuclei), Rheumatoid Factor (antibodies associated with RA), TPO & TG Antibodies (thyroid autoimmunity markers found in 90%+ of Hashimoto's cases), hs-CRP (inflammation marker), and CBC with differential (blood cell analysis).","whoIsItFor":"Anyone with unexplained joint pain, fatigue, rashes, or symptoms that could suggest autoimmune disease. Also for those with family history of autoimmune or thyroid conditions, people with one autoimmune disease checking for others, and those with chronic unexplained symptoms including weight changes, hair loss, or temperature sensitivity.","symptomsAddressed":["Joint pain","Fatigue","Rashes","Muscle weakness","Dry eyes/mouth","Hair loss","Unexplained fevers","Joint stiffness","Swelling","Weight changes","Cold intolerance","Brain fog"],"conditionsScreened":["Rheumatoid arthritis","Lupus (SLE)","Sjogren's syndrome","Scleroderma","Hashimoto's thyroiditis","Mixed connective tissue disease","Polymyositis","Autoimmune thyroid disease"],"whenToTest":"No fasting required. Can be tested any time. For the most accurate results, avoid testing during acute illness as inflammatory markers may be temporarily elevated.","preparationInstructions":"No special preparation needed. Make note of any symptoms you're experiencing and their duration. This information helps interpret results in context.","resultsOverview":"ANA: Negative is reassuring; positive triggers automatic titer and pattern analysis to help identify the specific condition. RF: <14 IU/mL is normal; elevated suggests RA. TPO & TG Antibodies: elevated levels confirm thyroid autoimmunity (Hashimoto's). hs-CRP: <1.0 mg/L is optimal. CBC: normal ranges vary by age and sex. Positive results in any marker warrant follow-up with a specialist.","faqs":[{"question":"What does a positive ANA mean?","answer":"A positive ANA means your immune system is producing antibodies against your own cell nuclei. It's seen in many autoimmune diseases but also in about 15% of healthy people. The automatic reflex to titer and pattern provides additional detail to help identify the specific condition."},{"question":"Why are thyroid antibodies included?","answer":"Hashimoto's thyroiditis is the most common autoimmune disease and frequently co-occurs with other autoimmune conditions. Testing for TPO and TG antibodies catches thyroid autoimmunity that would otherwise require a separate panel, giving you a more complete picture."},{"question":"Can I have autoimmune disease with negative results?","answer":"Yes. Some autoimmune conditions have specific antibodies not included in this screening panel. Negative results don't rule out all autoimmune disease, especially if you have strong symptoms. However, this panel covers the most common markers."},{"question":"What's the next step if results are positive?","answer":"Positive results typically lead to more specific testing and evaluation by a specialist. Positive ANA may require anti-dsDNA or anti-CCP testing. Elevated thyroid antibodies warrant a full thyroid panel. A rheumatologist or endocrinologist can guide next steps."}],"relatedTests":["vitamin-d","celiac-panel","sed-rate"],"relatedPanels":["panel-thyroid-hashimotos","panel-inflammation","panel-thyroid-complete"],"name_es":"Panel de Tamizaje Autoinmune","whenToTest_es":"No se requiere ayuno. Puede analizarse en cualquier momento. Para los resultados más precisos, evita analizarte durante enfermedad aguda ya que los marcadores inflamatorios pueden estar temporalmente elevados.","preparationInstructions_es":"No se necesita preparación especial. Anota cualquier síntoma que estés experimentando y su duración. Esta información ayuda a interpretar los resultados en contexto.","resultsOverview_es":"ANA: Negativo es tranquilizador; positivo activa análisis automático de título y patrón para ayudar a identificar la condición específica. FR: <14 UI/mL es normal; elevado sugiere AR. Anticuerpos TPO y TG: niveles elevados confirman autoinmunidad tiroidea (Hashimoto). hs-CRP: <1.0 mg/L es óptimo. Hemograma: los rangos normales varían según edad y sexo. Resultados positivos en cualquier marcador ameritan seguimiento con un especialista.","metaDescription_es":"Tamizaje autoinmune integral por $60. Incluye ANA con reflejo, Factor Reumatoide, anticuerpos tiroideos (TPO y TG), hs-CRP y hemograma. 5 pruebas en un panel.","longDescription_es":"Las enfermedades autoinmunes ocurren cuando tu sistema inmunológico ataca por error tus propios tejidos. Afectan a millones de personas y pueden ser difíciles de diagnosticar. Este panel cubre los marcadores iniciales más importantes tanto de autoinmunidad sistémica como específica de órganos:\n\n• ANA con Reflejo a Título y Patrón - La prueba estándar de tamizaje para condiciones autoinmunes sistémicas como lupus, Sjögren y esclerodermia\n• Factor Reumatoide - Elevado en artritis reumatoide y algunas otras condiciones autoinmunes\n• Anticuerpos TPO y TG - Detecta autoinmunidad tiroidea (Hashimoto), la condición autoinmune más común\n• hs-CRP - Mide la inflamación que a menudo acompaña la actividad autoinmune\n• Hemograma con Diferencial - Puede revelar anemia o glóbulos blancos anormales vistos en enfermedad autoinmune\n\nEste panel es un punto de partida integral. Cubre tanto condiciones autoinmunes sistémicas como tiroiditis de Hashimoto, que es la enfermedad autoinmune #1 y frecuentemente coexiste con otras condiciones autoinmunes.","conditionsScreened_es":["Artritis reumatoide","Lupus (LES)","Síndrome de Sjögren","Esclerodermia","Tiroiditis de Hashimoto","Enfermedad mixta del tejido conectivo","Polimiositis","Enfermedad tiroidea autoinmune"],"description_es":"Estudio autoinmune integral que incluye ANA con reflejo, Factor Reumatoide, Anticuerpos TPO y TG, hs-CRP y hemograma.","shortSummary_es":"Nuestro estudio autoinmune inicial más completo cubre marcadores autoinmunes sistémicos (ANA, Factor Reumatoide), autoinmunidad tiroidea (Anticuerpos TPO y TG), inflamación (hs-CRP) y análisis de células sanguíneas (hemograma) - 5 pruebas en un solo panel.","whatItMeasures_es":"Este panel incluye 5 pruebas: tamizaje de ANA con reflejo automático a título y patrón (anticuerpos contra núcleos celulares), Factor Reumatoide (anticuerpos asociados con AR), Anticuerpos TPO y TG (marcadores de autoinmunidad tiroidea encontrados en más del 90% de los casos de Hashimoto), hs-CRP (marcador de inflamación) y Hemograma Completo con diferencial (análisis de células sanguíneas).","h1Title_es":"Panel de Tamizaje Autoinmune - Evaluación Autoinmune Integral","metaTitle_es":"Panel de Tamizaje Autoinmune - $60 (Ahorra $5) | Justlabs","symptomsAddressed_es":["Dolor articular","Fatiga","Erupciones","Debilidad muscular","Ojos/boca secos","Caída del cabello","Fiebres inexplicables","Rigidez articular","Hinchazón","Cambios de peso","Intolerancia al frío","Niebla mental"],"whoIsItFor_es":"Cualquier persona con dolor articular inexplicable, fatiga, erupciones o síntomas que podrían sugerir enfermedad autoinmune. También para quienes tienen antecedentes familiares de condiciones autoinmunes o tiroideas, personas con una enfermedad autoinmune verificando otras, y quienes tienen síntomas crónicos inexplicables incluyendo cambios de peso, caída de cabello o sensibilidad a la temperatura.","faqs_es":[{"question":"¿Qué significa un ANA positivo?","answer":"Un ANA positivo significa que tu sistema inmunológico está produciendo anticuerpos contra los núcleos de tus propias células. Se ve en muchas enfermedades autoinmunes pero también en aproximadamente el 15% de las personas sanas. El reflejo automático a título y patrón proporciona detalle adicional para ayudar a identificar la condición específica."},{"question":"¿Por qué se incluyen los anticuerpos tiroideos?","answer":"La tiroiditis de Hashimoto es la enfermedad autoinmune más común y frecuentemente coexiste con otras condiciones autoinmunes. Analizar anticuerpos TPO y TG detecta autoinmunidad tiroidea que de otro modo requeriría un panel separado, dándote un panorama más completo."},{"question":"¿Puedo tener enfermedad autoinmune con resultados negativos?","answer":"Sí. Algunas condiciones autoinmunes tienen anticuerpos específicos no incluidos en este panel de tamizaje. Los resultados negativos no descartan toda enfermedad autoinmune, especialmente si tienes síntomas fuertes. Sin embargo, este panel cubre los marcadores más comunes."},{"question":"¿Cuál es el siguiente paso si los resultados son positivos?","answer":"Los resultados positivos típicamente llevan a pruebas más específicas y evaluación por un especialista. ANA positivo puede requerir pruebas de anti-ADNds o anti-CCP. Anticuerpos tiroideos elevados ameritan un panel tiroideo completo. Un reumatólogo o endocrinólogo puede guiar los próximos pasos."}]},{"id":"panel-wellness-basic","name":"Basic Wellness Panel","description":"Essential health screening with CBC, CMP, lipids, and TSH. Great starting point for general health.","category":"general","tests":["cbc-diff","cmp","lipid-panel","tsh"],"price":30,"savings":2.5,"fastingRequired":true,"popular":true,"metaTitle":"Basic Wellness Panel - $29.5 (Save $2) | Essential Health Screening | Justlabs","metaDescription":"Get essential health screening for just $29.5. Includes CBC, CMP, lipid panel, and TSH. 4 key tests covering 30+ biomarkers. Results in 1-2 days. No doctor visit needed.","h1Title":"Basic Wellness Panel - Essential Health Screening","shortSummary":"Our most affordable comprehensive screening includes the 4 tests doctors order most: CBC, Comprehensive Metabolic Panel, Lipid Panel, and TSH. Covers 30+ biomarkers in one blood draw.","longDescription":"This panel includes the fundamental tests that form the basis of most health checkups:\n\n• Complete Blood Count (CBC) with Differential - Red cells, white cells, platelets, and immune cell types\n• Comprehensive Metabolic Panel (CMP) - Glucose, electrolytes, kidney function, liver function\n• Lipid Panel - Total cholesterol, HDL, LDL, triglycerides\n• TSH - Thyroid screening\n\nThese four tests cover the major body systems and catch common conditions like anemia, diabetes, kidney/liver issues, high cholesterol, and thyroid problems. The perfect starting point if you haven't had bloodwork in a while.","whatItMeasures":"This panel measures 30+ biomarkers across 4 tests: 14 blood cell markers (CBC), 14 metabolic markers (glucose, electrolytes, kidney, liver), 5 lipid markers (cholesterol, triglycerides), and TSH (thyroid). A comprehensive snapshot of your basic health.","whoIsItFor":"Anyone wanting a basic health checkup, those who haven't had bloodwork recently, young adults establishing a health baseline, cost-conscious individuals who want essential screening, and anyone curious about their basic health metrics.","symptomsAddressed":["Fatigue","Weight concerns","General malaise","Preventive screening"],"conditionsScreened":["Anemia","High cholesterol","Diabetes/prediabetes","Thyroid disorders","Kidney issues","Liver issues","Electrolyte imbalances","Blood cell abnormalities"],"whenToTest":"Fasting for 9-12 hours is required for accurate lipid and glucose results. Schedule for morning when possible. Ideal for annual screening.","preparationInstructions":"Fast for 9-12 hours before your blood draw (water is allowed). Avoid alcohol for 24 hours prior. Continue all medications as normal.","resultsOverview":"You'll receive a report with all 30+ biomarkers organized by category. Key things to look for: normal blood counts, fasting glucose <100, LDL cholesterol <100, TSH 0.5-4.0. Any abnormal values will be flagged.","faqs":[{"question":"How is this different from the Comprehensive Wellness Panel?","answer":"The Basic panel includes 4 core tests. The Comprehensive panel adds HbA1c (blood sugar average), Vitamin D, Free T4 (more thyroid detail), hs-CRP (inflammation), and Ferritin (iron stores) for a more thorough assessment."},{"question":"Is this enough for my annual checkup?","answer":"For many healthy people, yes. This covers the basics most doctors check. However, if you have symptoms, risk factors, or want more detail, the Comprehensive Wellness Panel provides deeper insights."},{"question":"Why is fasting required?","answer":"The lipid panel and fasting glucose need you to fast for accurate results. Eating before the test will artificially raise triglycerides and glucose levels."},{"question":"What should I do if something is abnormal?","answer":"Don't panic - minor abnormalities are common. Review results with a healthcare provider who can determine if further testing or treatment is needed based on your overall health picture."}],"relatedTests":["hemoglobin-a1c","vitamin-d","ferritin","free-t4"],"relatedPanels":["panel-wellness-comprehensive","panel-energy-fatigue","panel-metabolic-complete"],"name_es":"Panel de Bienestar Básico","whenToTest_es":"Se requiere ayuno de 9-12 horas para resultados precisos de lípidos y glucosa. Programa para la mañana cuando sea posible. Ideal para tamizaje anual.","metaDescription_es":"Obtén tamizaje de salud esencial por solo $29.5. Incluye hemograma, PMI, panel de lípidos y TSH. 4 pruebas clave cubriendo más de 30 biomarcadores. Resultados en 1-2 días. Sin necesidad de visita médica.","preparationInstructions_es":"Ayuna 9-12 horas antes de tu extracción de sangre (se permite agua). Evita el alcohol 24 horas antes. Continúa con todos los medicamentos como de costumbre.","h1Title_es":"Panel de Bienestar Básico - Tamizaje de Salud Esencial","metaTitle_es":"Panel de Bienestar Básico - $29.5 (Ahorra $2) | Tamizaje de Salud Esencial | Justlabs","symptomsAddressed_es":["Fatiga","Preocupaciones de peso","Malestar general","Tamizaje preventivo"],"whoIsItFor_es":"Cualquier persona que desee un chequeo de salud básico, quienes no se han hecho análisis de sangre recientemente, adultos jóvenes estableciendo una línea base de salud, individuos conscientes del costo que desean un tamizaje esencial, y cualquiera curioso sobre sus métricas básicas de salud.","resultsOverview_es":"Recibirás un informe con más de 30 biomarcadores organizados por categoría. Cosas clave a buscar: conteos sanguíneos normales, glucosa en ayunas <100, colesterol LDL <100, TSH 0.5-4.0. Cualquier valor anormal será señalizado.","longDescription_es":"Este panel incluye las pruebas fundamentales que forman la base de la mayoría de los chequeos de salud:\n\n• Hemograma Completo (CBC) con Diferencial - Glóbulos rojos, glóbulos blancos, plaquetas y tipos de células inmunes\n• Panel Metabólico Integral (CMP) - Glucosa, electrolitos, función renal, función hepática\n• Panel de Lípidos - Colesterol total, HDL, LDL, triglicéridos\n• TSH - Tamizaje tiroideo\n\nEstas cuatro pruebas cubren los sistemas corporales principales y detectan condiciones comunes como anemia, diabetes, problemas renales/hepáticos, colesterol alto y problemas de tiroides. El punto de partida perfecto si no te has hecho análisis de sangre en un tiempo.","conditionsScreened_es":["Anemia","Colesterol alto","Diabetes/prediabetes","Trastornos tiroideos","Problemas renales","Problemas hepáticos","Desequilibrios de electrolitos","Anormalidades de células sanguíneas"],"description_es":"Tamizaje de salud esencial con hemograma, PMI, lípidos y TSH. Gran punto de partida para la salud general.","shortSummary_es":"Nuestro tamizaje más económico incluye las 4 pruebas que los médicos ordenan más: hemograma, Panel Metabólico Integral, Panel de Lípidos y TSH. Cubre más de 30 biomarcadores en una extracción de sangre.","whatItMeasures_es":"Este panel mide más de 30 biomarcadores en 4 pruebas: 14 marcadores de células sanguíneas (hemograma), 14 marcadores metabólicos (glucosa, electrolitos, riñón, hígado), 5 marcadores de lípidos (colesterol, triglicéridos) y TSH (tiroides). Una instantánea completa de tu salud básica.","faqs_es":[{"question":"¿En qué se diferencia esto del Panel de Bienestar Integral?","answer":"El panel Básico incluye 4 pruebas principales. El panel Integral agrega HbA1c (promedio de azúcar en sangre), vitamina D, T4 Libre (más detalle tiroideo), hs-CRP (inflamación) y Ferritina (reservas de hierro) para una evaluación más exhaustiva."},{"question":"¿Es esto suficiente para mi chequeo anual?","answer":"Para muchas personas sanas, sí. Esto cubre lo básico que la mayoría de los médicos verifican. Sin embargo, si tienes síntomas, factores de riesgo o deseas más detalle, el Panel de Bienestar Integral proporciona información más profunda."},{"question":"¿Por qué se requiere ayuno?","answer":"El panel de lípidos y la glucosa en ayunas necesitan que ayunes para resultados precisos. Comer antes de la prueba elevará artificialmente los niveles de triglicéridos y glucosa."},{"question":"¿Qué debo hacer si algo sale anormal?","answer":"No entres en pánico - las anormalidades menores son comunes. Revisa los resultados con un profesional de la salud que pueda determinar si se necesitan más pruebas o tratamiento según tu imagen de salud general."}]},{"id":"panel-wellness-comprehensive","name":"Comprehensive Wellness Panel","description":"Thorough health assessment with CBC, CMP, lipids, thyroid, HbA1c, Vitamin D, and inflammation markers.","category":"general","tests":["cbc-diff","cmp","lipid-panel","tsh","free-t4","hemoglobin-a1c","vitamin-d","hs-crp","ferritin"],"price":94,"savings":4.5,"fastingRequired":true,"popular":true,"metaTitle":"Comprehensive Wellness Panel - $89.5 (Save $2) | Full Health Screening | Justlabs","metaDescription":"Get our comprehensive wellness panel for $89.5. Includes 9 tests: CBC, CMP, lipids, thyroid, HbA1c, Vitamin D, inflammation, and iron. Complete health checkup. Results in 1-2 days.","h1Title":"Comprehensive Wellness Panel - Complete Health Screening","shortSummary":"Our most thorough health screening covers blood cells, organ function, cholesterol, thyroid, blood sugar, vitamin D, inflammation, and iron - everything you need for a complete health picture.","longDescription":"This comprehensive panel is designed to give you a complete view of your health with 9 essential tests covering all major body systems:\n\n• CBC with Differential - Blood cells and immune function\n• Comprehensive Metabolic Panel - Organ function, electrolytes, kidney, liver\n• Lipid Panel - Cholesterol and heart health\n• TSH & Free T4 - Thyroid function\n• HbA1c - Blood sugar/diabetes risk\n• Vitamin D - Bone health and immunity\n• hs-CRP - Inflammation marker\n• Ferritin - Iron stores\n\nThis panel catches issues that would otherwise require multiple doctor visits and separate tests.","whatItMeasures":"Over 40 individual biomarkers across 9 tests: complete blood count with white cell differential, 14 metabolic markers (glucose, electrolytes, kidney and liver function), 5 lipid markers, 2 thyroid markers, blood sugar average, vitamin D level, inflammation level, and iron storage.","whoIsItFor":"Adults wanting a thorough annual health checkup, anyone with multiple health concerns, those with family history of chronic disease, people with fatigue or other unexplained symptoms, and anyone wanting to establish a health baseline.","symptomsAddressed":["Fatigue","Weight changes","Brain fog","Frequent illness","Joint pain","Mood changes","Hair loss","Poor sleep","Digestive issues","Low energy"],"conditionsScreened":["Diabetes/prediabetes","Thyroid disorders","Anemia","Iron deficiency","Vitamin D deficiency","High cholesterol","Kidney disease","Liver disease","Chronic inflammation","Metabolic syndrome"],"whenToTest":"Fasting for 9-12 hours is required (for lipid panel and glucose). Schedule for morning and bring water - you can drink water while fasting. Ideal for annual health screening.","preparationInstructions":"Fast for 9-12 hours before your blood draw (water is allowed and encouraged). Avoid alcohol for 24 hours prior. Continue all medications as normal unless directed otherwise.","resultsOverview":"You'll receive a comprehensive report with all biomarkers organized by category, clear reference ranges, and flags for any abnormal values. Each section covers a different body system so you can easily understand your overall health status.","faqs":[{"question":"Why is this called \"comprehensive\"?","answer":"This panel includes 9 different tests covering blood cells, organ function, cholesterol, thyroid, blood sugar, vitamin D, inflammation, and iron - more body systems than any of our other wellness panels."},{"question":"How long do I need to fast?","answer":"9-12 hours without food (water is fine). This ensures accurate lipid panel and blood sugar results. Schedule your test for the morning for easiest fasting."},{"question":"How does this compare to my doctor's annual blood work?","answer":"This panel is often more comprehensive than basic annual bloodwork. Many doctors only order CBC, CMP, and sometimes lipids. This adds thyroid, HbA1c, vitamin D, inflammation, and iron - catching issues often missed."},{"question":"How often should I get this panel?","answer":"Annually for most healthy adults. More frequently (every 3-6 months) if you're monitoring specific conditions or tracking progress on lifestyle changes."}],"relatedTests":["homocysteine","vitamin-b12","magnesium-rbc"],"relatedPanels":["panel-wellness-basic","panel-energy-fatigue","panel-longevity"],"name_es":"Panel de Bienestar Integral","whenToTest_es":"Se requiere ayuno de 9-12 horas (para el panel de lípidos y glucosa). Programa para la mañana y trae agua - puedes beber agua durante el ayuno. Ideal para tamizaje de salud anual.","metaDescription_es":"Obtén nuestro panel de bienestar integral por $89.5. Incluye 9 pruebas: CBC, CMP, lípidos, tiroides, HbA1c, vitamina D, inflamación y hierro. Chequeo de salud completo. Resultados en 1-2 días.","preparationInstructions_es":"Ayuna 9-12 horas antes de tu extracción de sangre (se permite y se recomienda agua). Evita el alcohol 24 horas antes. Continúa con todos los medicamentos como de costumbre a menos que se indique lo contrario.","h1Title_es":"Panel de Bienestar Integral - Tamizaje de Salud Completo","metaTitle_es":"Panel de Bienestar Integral - $89.5 (Ahorra $2) | Tamizaje de Salud Completo | Justlabs","symptomsAddressed_es":["Fatiga","Cambios de peso","Niebla mental","Enfermedad frecuente","Dolor articular","Cambios de humor","Caída del cabello","Mal sueño","Problemas digestivos","Baja energía"],"whoIsItFor_es":"Adultos que desean un chequeo de salud anual exhaustivo, cualquiera con múltiples preocupaciones de salud, quienes tienen antecedentes familiares de enfermedades crónicas, personas con fatiga u otros síntomas inexplicables, y cualquiera que desee establecer una línea base de salud.","resultsOverview_es":"Recibirás un informe completo con todos los biomarcadores organizados por categoría, rangos de referencia claros y señalizaciones para cualquier valor anormal. Cada sección cubre un sistema corporal diferente para que puedas entender fácilmente tu estado de salud general.","longDescription_es":"Este panel integral está diseñado para darte una vista completa de tu salud con 9 pruebas esenciales que cubren todos los sistemas corporales principales:\n\n• CBC con Diferencial - Células sanguíneas y función inmune\n• Panel Metabólico Integral - Función de órganos, electrolitos, riñón, hígado\n• Panel de Lípidos - Colesterol y salud cardíaca\n• TSH y T4 Libre - Función tiroidea\n• HbA1c - Riesgo de azúcar en sangre/diabetes\n• Vitamina D - Salud ósea e inmunidad\n• hs-CRP - Marcador de inflamación\n• Ferritina - Reservas de hierro\n\nEste panel detecta problemas que de otra manera requerirían múltiples visitas médicas y pruebas separadas.","conditionsScreened_es":["Diabetes/prediabetes","Trastornos tiroideos","Anemia","Deficiencia de hierro","Deficiencia de vitamina D","Colesterol alto","Enfermedad renal","Enfermedad hepática","Inflamación crónica","Síndrome metabólico"],"description_es":"Evaluación de salud exhaustiva con CBC, CMP, lípidos, tiroides, HbA1c, vitamina D y marcadores de inflamación.","shortSummary_es":"Nuestro tamizaje de salud más completo cubre células sanguíneas, función de órganos, colesterol, tiroides, azúcar en sangre, vitamina D, inflamación y hierro - todo lo que necesitas para una imagen completa de tu salud.","whatItMeasures_es":"Más de 40 biomarcadores individuales en 9 pruebas: conteo sanguíneo completo con diferencial de glóbulos blancos, 14 marcadores metabólicos (glucosa, electrolitos, función renal y hepática), 5 marcadores de lípidos, 2 marcadores tiroideos, promedio de azúcar en sangre, nivel de vitamina D, nivel de inflamación y almacenamiento de hierro.","faqs_es":[{"question":"¿Por qué se llama 'integral'?","answer":"Este panel incluye 9 pruebas diferentes que cubren células sanguíneas, función de órganos, colesterol, tiroides, azúcar en sangre, vitamina D, inflamación y hierro - más sistemas corporales que cualquiera de nuestros otros paneles de bienestar."},{"question":"¿Cuánto tiempo necesito ayunar?","answer":"9-12 horas sin comida (el agua está bien). Esto asegura resultados precisos del panel de lípidos y azúcar en sangre. Programa tu prueba para la mañana para el ayuno más fácil."},{"question":"¿Cómo se compara esto con los análisis de sangre anuales de mi médico?","answer":"Este panel a menudo es más completo que los análisis de sangre anuales básicos. Muchos médicos solo ordenan CBC, CMP y a veces lípidos. Este agrega tiroides, HbA1c, vitamina D, inflamación y hierro - detectando problemas que a menudo se pasan por alto."},{"question":"¿Con qué frecuencia debo hacerme este panel?","answer":"Anualmente para la mayoría de los adultos sanos. Más frecuentemente (cada 3-6 meses) si estás monitoreando condiciones específicas o siguiendo el progreso de cambios de estilo de vida."}]},{"id":"panel-longevity","name":"Longevity & Aging Panel","description":"Advanced markers for healthy aging including hormones, inflammation, metabolic health, and cardiovascular risk.","category":"general","tests":["cbc-diff","cmp","lipid-panel","hemoglobin-a1c","hs-crp","homocysteine","vitamin-d","testosterone-free-total","dhea-s","igf-1"],"price":149,"savings":16.5,"fastingRequired":true,"metaTitle":"Longevity & Aging Panel - $147 (Save $7.5) | Optimize Healthy Aging | Justlabs","metaDescription":"Optimize your healthspan with our longevity panel for $147. Includes hormones (testosterone, DHEA-S, IGF-1), metabolic markers, inflammation, and cardiovascular risk. 11 tests in one.","h1Title":"Longevity & Aging Panel - Optimize Your Healthspan","shortSummary":"This advanced panel targets the biomarkers that matter most for healthy aging: hormones that decline with age, metabolic health, inflammation, and cardiovascular risk factors.","longDescription":"Aging isn't just about adding years - it's about maintaining vitality, energy, and health as you age. This comprehensive panel measures the key biomarkers associated with healthy longevity:\n\n• Metabolic Health - CBC, CMP, Lipid Panel, HbA1c, Fasting Insulin\n• Inflammation - hs-CRP, Homocysteine (both linked to accelerated aging)\n• Key Vitamins - Vitamin D (essential for aging well)\n• Hormones - Testosterone, DHEA-S, IGF-1 (all decline with age)\n\nThese markers help you understand your biological age vs. chronological age and identify areas to optimize for a longer, healthier life.","whatItMeasures":"This panel measures 11 tests across 4 categories: metabolic function (CBC, CMP, lipids, HbA1c, insulin), inflammation (hs-CRP, homocysteine), vitamin status (Vitamin D), and hormones (testosterone, DHEA-S, IGF-1). Over 50 biomarkers for comprehensive aging assessment.","whoIsItFor":"Adults focused on proactive health optimization, those over 40 wanting to track aging biomarkers, people interested in longevity medicine, anyone wanting to understand their \"biological age,\" and health-conscious individuals who want the most comprehensive testing.","symptomsAddressed":["Declining energy","Reduced muscle mass","Weight gain","Poor recovery from exercise","Brain fog","Mood changes","Sleep issues","Low libido"],"conditionsScreened":["Insulin resistance","Metabolic syndrome","Hormonal decline","Chronic inflammation","Cardiovascular risk","Vitamin D deficiency","Accelerated aging markers"],"whenToTest":"Fasting for 9-12 hours is required for accurate insulin and lipid results. Test in the morning (7-10 AM) for accurate testosterone and cortisol patterns. Ideal for annual or semi-annual tracking.","preparationInstructions":"Fast for 9-12 hours before testing (water is fine). Test in the morning for accurate hormone levels. Get good sleep the night before. Avoid intense exercise 24 hours prior.","resultsOverview":"Key longevity targets: Fasting insulin <5-7, HbA1c <5.3%, hs-CRP <0.5, homocysteine <7, Vitamin D 50-70, testosterone in upper half of range, DHEA-S appropriate for age, IGF-1 in optimal range (not too high or low).","faqs":[{"question":"Why is this called a \"longevity\" panel?","answer":"These markers are specifically chosen based on longevity research - they're associated with healthspan and lifespan. Optimizing these biomarkers is the focus of preventive and longevity medicine."},{"question":"What hormones decline with age?","answer":"Testosterone declines about 1% per year after 30 in men (and is important for women too). DHEA-S peaks in your 20s and declines steadily. IGF-1 also declines with age. Tracking these helps identify when intervention might help."},{"question":"What does optimal insulin mean for longevity?","answer":"Fasting insulin is one of the most important longevity markers. High insulin (even with normal blood sugar) accelerates aging, promotes fat storage, and increases disease risk. Optimal levels are 2-6 µIU/mL."},{"question":"How often should I test this panel?","answer":"Annually for most people. If you're actively working on optimizing these markers through lifestyle changes or treatments, every 3-6 months can help track progress."}],"relatedTests":["apoe-genotype","lipoprotein-a","omega-check","cortisol-total"],"relatedPanels":["panel-hormone-male","panel-heart-health","panel-metabolic-complete"],"name_es":"Panel de Longevidad y Envejecimiento","whenToTest_es":"Se requiere ayuno de 9-12 horas para resultados precisos de insulina y lípidos. Analiza por la mañana (7-10 AM) para patrones precisos de testosterona y cortisol. Ideal para seguimiento anual o semestral.","metaDescription_es":"Optimiza tu esperanza de vida saludable con nuestro panel de longevidad por $147. Incluye hormonas (testosterona, DHEA-S, IGF-1), marcadores metabólicos, inflamación y riesgo cardiovascular. 11 pruebas en una.","preparationInstructions_es":"Ayuna 9-12 horas antes de la prueba (el agua está bien). Analiza por la mañana para niveles hormonales precisos. Duerme bien la noche anterior. Evita ejercicio intenso 24 horas antes.","h1Title_es":"Panel de Longevidad y Envejecimiento - Optimiza Tu Esperanza de Vida Saludable","metaTitle_es":"Panel de Longevidad y Envejecimiento - $147 (Ahorra $7.5) | Optimiza el Envejecimiento Saludable | Justlabs","symptomsAddressed_es":["Disminución de energía","Reducción de masa muscular","Aumento de peso","Mala recuperación del ejercicio","Niebla mental","Cambios de humor","Problemas de sueño","Baja libido"],"whoIsItFor_es":"Adultos enfocados en optimización proactiva de la salud, mayores de 40 que desean rastrear biomarcadores de envejecimiento, personas interesadas en medicina de longevidad, cualquiera que desee entender su \"edad biológica\", e individuos conscientes de la salud que desean las pruebas más completas.","resultsOverview_es":"Objetivos clave de longevidad: Insulina en ayunas <5-7, HbA1c <5.3%, hs-CRP <0.5, homocisteína <7, Vitamina D 50-70, testosterona en la mitad superior del rango, DHEA-S apropiada para la edad, IGF-1 en rango óptimo (ni muy alto ni muy bajo).","longDescription_es":"Envejecer no se trata solo de sumar años - se trata de mantener la vitalidad, energía y salud a medida que envejeces. Este panel integral mide los biomarcadores clave asociados con la longevidad saludable:\n\n• Salud Metabólica - Hemograma, PMI, Panel de Lípidos, HbA1c, Insulina en Ayunas\n• Inflamación - hs-CRP, Homocisteína (ambas relacionadas con envejecimiento acelerado)\n• Vitaminas Clave - Vitamina D (esencial para envejecer bien)\n• Hormonas - Testosterona, DHEA-S, IGF-1 (todas disminuyen con la edad)\n\nEstos marcadores te ayudan a entender tu edad biológica vs. edad cronológica e identificar áreas para optimizar para una vida más larga y saludable.","conditionsScreened_es":["Resistencia a la insulina","Síndrome metabólico","Declive hormonal","Inflamación crónica","Riesgo cardiovascular","Deficiencia de vitamina D","Marcadores de envejecimiento acelerado"],"description_es":"Marcadores avanzados para envejecimiento saludable incluyendo hormonas, inflamación, salud metabólica y riesgo cardiovascular.","shortSummary_es":"Este panel avanzado se enfoca en los biomarcadores que más importan para el envejecimiento saludable: hormonas que disminuyen con la edad, salud metabólica, inflamación y factores de riesgo cardiovascular.","whatItMeasures_es":"Este panel mide 11 pruebas en 4 categorías: función metabólica (hemograma, PMI, lípidos, HbA1c, insulina), inflamación (hs-CRP, homocisteína), estado vitamínico (vitamina D) y hormonas (testosterona, DHEA-S, IGF-1). Más de 50 biomarcadores para evaluación integral del envejecimiento.","faqs_es":[{"question":"¿Por qué se llama panel de 'longevidad'?","answer":"Estos marcadores están específicamente elegidos basados en investigación de longevidad - están asociados con esperanza de vida saludable y duración de vida. Optimizar estos biomarcadores es el enfoque de la medicina preventiva y de longevidad."},{"question":"¿Qué hormonas disminuyen con la edad?","answer":"La testosterona disminuye aproximadamente 1% por año después de los 30 en hombres (y es importante para las mujeres también). DHEA-S alcanza su pico en los 20s y disminuye constantemente. IGF-1 también disminuye con la edad. Rastrear estas ayuda a identificar cuándo la intervención podría ayudar."},{"question":"¿Qué significa insulina óptima para la longevidad?","answer":"La insulina en ayunas es uno de los marcadores de longevidad más importantes. La insulina alta (incluso con azúcar en sangre normal) acelera el envejecimiento, promueve el almacenamiento de grasa y aumenta el riesgo de enfermedad. Los niveles óptimos son 2-6 µIU/mL."},{"question":"¿Con qué frecuencia debo hacerme este panel?","answer":"Anualmente para la mayoría de las personas. Si estás trabajando activamente en optimizar estos marcadores a través de cambios de estilo de vida o tratamientos, cada 3-6 meses puede ayudar a seguir el progreso."}]},{"id":"panel-pancreatic-enzymes","name":"Pancreatic Enzymes Panel","description":"First-line tests for suspected pancreatic inflammation. Lipase is more pancreas-specific while amylase rises quickly. Simple, low-cost, and easy to interpret.","category":"metabolic","tests":["amylase","lipase"],"price":24,"savings":0,"fastingRequired":false,"metaTitle":"Pancreatic Enzymes Panel - $22 (Save $2) | Amylase & Lipase | JustLabs","metaDescription":"Order a Pancreatic Enzymes Panel for $22. First-line testing for pancreatitis with Amylase and Lipase. Simple, low-cost, easy to interpret. No fasting required.","h1Title":"Pancreatic Enzymes Panel - Amylase & Lipase","shortSummary":"The first-line panel for suspected pancreatic inflammation. Combines both key pancreatic enzymes - lipase (more specific) and amylase (rises faster) - for accurate detection of pancreatitis.","longDescription":"This panel is the standard first-line test for suspected pancreatic inflammation. It combines two essential pancreatic enzymes that work together to give you the most accurate picture of pancreatic health.\n\n**Why This Panel:**\n• First-line tests for suspected pancreatic inflammation\n• Lipase is more pancreas-specific\n• Often ordered together for abdominal pain, nausea, or acute flares\n• Simple, low-cost, and easy to interpret\n\n**What's Included:**\n\n• **Lipase** - The gold standard for pancreatitis detection. Lipase is produced almost exclusively by the pancreas, making it highly specific. It stays elevated for 8-14 days after an episode.\n\n• **Amylase** - A digestive enzyme that rises quickly (within 6-12 hours) during acute pancreatitis. While less specific than lipase, it can detect some conditions that lipase might miss.\n\nTesting both enzymes together provides the most comprehensive assessment. If one enzyme is elevated, checking the other helps confirm the diagnosis and rule out false positives.","whatItMeasures":"This panel measures two key pancreatic enzymes: Lipase (normal 0-60 U/L) is the most specific marker for pancreatitis. Amylase (normal 30-110 U/L) rises quickly during acute episodes. Levels 3+ times normal for either enzyme strongly suggest pancreatitis.","whoIsItFor":"Anyone experiencing upper abdominal pain (especially pain that radiates to the back), nausea, vomiting after eating, or symptoms suggestive of pancreatitis. Also valuable for monitoring chronic pancreatitis, evaluating recurrent digestive issues, and assessing pancreatic health after gallbladder problems.","symptomsAddressed":["Severe upper abdominal pain","Pain radiating to the back","Nausea and vomiting","Abdominal tenderness","Pain worse after eating","Fever with abdominal pain","Rapid heartbeat","Oily or fatty stools","Unexplained weight loss","Bloating and indigestion"],"conditionsScreened":["Acute pancreatitis","Chronic pancreatitis","Gallstone pancreatitis","Alcoholic pancreatitis","Pancreatic duct obstruction","Pancreatic pseudocyst","Pancreatic insufficiency","Cystic fibrosis complications"],"whenToTest":"No fasting required. Test as soon as possible if acute pancreatitis is suspected - both enzymes rise within hours. This panel is also useful for routine monitoring of chronic pancreatitis or digestive concerns.","preparationInstructions":"No special preparation needed. Inform your provider about medications (some can affect enzyme levels) and recent alcohol consumption. Avoid heavy meals immediately before testing for most consistent results.","resultsOverview":"Normal ranges: Lipase 0-60 U/L, Amylase 30-110 U/L. Levels 3+ times normal strongly suggest acute pancreatitis. Moderately elevated levels may indicate chronic pancreatitis, biliary disease, or other digestive conditions. When both enzymes are elevated, pancreatitis is very likely.","faqs":[{"question":"Why test both amylase and lipase?","answer":"Testing both provides the most accurate picture. Lipase is more specific to the pancreas and stays elevated longer. Amylase rises faster but can also come from salivary glands. Together, they catch more cases and help confirm the diagnosis."},{"question":"Which enzyme is more important?","answer":"Lipase is generally considered more important because it's more specific to the pancreas and stays elevated longer (8-14 days vs 3-5 days for amylase). However, amylase rises faster and can occasionally be elevated when lipase is normal."},{"question":"Can these enzymes be elevated without pancreatitis?","answer":"Yes, mildly elevated levels can occur with kidney disease, gallbladder problems, intestinal issues, or certain medications. Levels 3+ times normal, especially when both enzymes are elevated, are highly specific for pancreatitis."},{"question":"How quickly do these enzymes rise?","answer":"Amylase rises within 6-12 hours of acute pancreatitis and returns to normal in 3-5 days. Lipase rises within 4-8 hours and stays elevated for 8-14 days. Testing both gives you the best chance of detection regardless of timing."}],"relatedTests":["cmp","hepatic-panel","hs-crp","lipid-panel"],"relatedPanels":["panel-pancreatic-comprehensive","panel-metabolic-complete"],"createdBy":"script","name_es":"Panel de Enzimas Pancreáticas","whenToTest_es":"No se requiere ayuno. Analizar lo antes posible si se sospecha pancreatitis aguda - ambas enzimas se elevan dentro de horas. Este panel también es útil para monitoreo rutinario de pancreatitis crónica o preocupaciones digestivas.","metaDescription_es":"Ordena un Panel de Enzimas Pancreáticas por $22. Prueba de primera línea para pancreatitis con Amilasa y Lipasa. Simple, económico, fácil de interpretar. No requiere ayuno.","preparationInstructions_es":"No se necesita preparación especial. Informe a su proveedor sobre medicamentos (algunos pueden afectar los niveles de enzimas) y consumo reciente de alcohol. Evite comidas pesadas inmediatamente antes de la prueba para resultados más consistentes.","h1Title_es":"Panel de Enzimas Pancreáticas - Amilasa y Lipasa","metaTitle_es":"Panel de Enzimas Pancreáticas - $22 (Ahorra $2) | Amilasa y Lipasa | JustLabs","symptomsAddressed_es":["Dolor abdominal superior severo","Dolor que se irradia hacia la espalda","Náuseas y vómitos","Sensibilidad abdominal","Dolor que empeora después de comer","Fiebre con dolor abdominal","Latidos cardíacos rápidos","Heces aceitosas o grasosas","Pérdida de peso inexplicable","Hinchazón e indigestión"],"whoIsItFor_es":"Cualquier persona que experimente dolor abdominal superior (especialmente dolor que se irradia hacia la espalda), náuseas, vómitos después de comer, o síntomas sugestivos de pancreatitis. También valioso para monitorear pancreatitis crónica, evaluar problemas digestivos recurrentes y evaluar la salud pancreática después de problemas de vesícula biliar.","resultsOverview_es":"Rangos normales: Lipasa 0-60 U/L, Amilasa 30-110 U/L. Niveles 3+ veces lo normal sugieren fuertemente pancreatitis aguda. Niveles moderadamente elevados pueden indicar pancreatitis crónica, enfermedad biliar u otras condiciones digestivas. Cuando ambas enzimas están elevadas, la pancreatitis es muy probable.","longDescription_es":"Este panel es la prueba estándar de primera línea para sospecha de inflamación pancreática. Combina dos enzimas pancreáticas esenciales que trabajan juntas para darte la imagen más precisa de la salud pancreática.\n\n**Por qué este Panel:**\n• Pruebas de primera línea para sospecha de inflamación pancreática\n• La lipasa es más específica del páncreas\n• A menudo se ordenan juntas para dolor abdominal, náuseas o episodios agudos\n• Simple, económico y fácil de interpretar\n\n**Qué Incluye:**\n\n• **Lipasa** - El estándar de oro para detección de pancreatitis. La lipasa es producida casi exclusivamente por el páncreas, haciéndola altamente específica. Permanece elevada por 8-14 días después de un episodio.\n\n• **Amilasa** - Una enzima digestiva que se eleva rápidamente (dentro de 6-12 horas) durante la pancreatitis aguda. Aunque menos específica que la lipasa, puede detectar algunas condiciones que la lipasa podría no detectar.\n\nAnalizar ambas enzimas juntas proporciona la evaluación más completa. Si una enzima está elevada, verificar la otra ayuda a confirmar el diagnóstico y descartar falsos positivos.","conditionsScreened_es":["Pancreatitis aguda","Pancreatitis crónica","Pancreatitis por cálculos biliares","Pancreatitis alcohólica","Obstrucción del conducto pancreático","Pseudoquiste pancreático","Insuficiencia pancreática","Complicaciones de fibrosis quística"],"description_es":"Pruebas de primera línea para sospecha de inflamación pancreática. La lipasa es más específica del páncreas mientras que la amilasa se eleva rápidamente. Simple, económico y fácil de interpretar.","shortSummary_es":"El panel de primera línea para sospecha de inflamación pancreática. Combina ambas enzimas pancreáticas clave - lipasa (más específica) y amilasa (se eleva más rápido) - para una detección precisa de pancreatitis.","whatItMeasures_es":"Este panel mide dos enzimas pancreáticas clave: Lipasa (normal 0-60 U/L) es el marcador más específico para pancreatitis. Amilasa (normal 30-110 U/L) se eleva rápidamente durante episodios agudos. Niveles 3+ veces lo normal para cualquiera de las enzimas sugieren fuertemente pancreatitis.","faqs_es":[{"question":"¿Por qué analizar tanto amilasa como lipasa?","answer":"Analizar ambas proporciona la imagen más precisa. La lipasa es más específica del páncreas y permanece elevada más tiempo. La amilasa se eleva más rápido pero también puede provenir de las glándulas salivales. Juntas, detectan más casos y ayudan a confirmar el diagnóstico."},{"question":"¿Qué enzima es más importante?","answer":"La lipasa generalmente se considera más importante porque es más específica del páncreas y permanece elevada más tiempo (8-14 días vs 3-5 días para amilasa). Sin embargo, la amilasa se eleva más rápido y ocasionalmente puede estar elevada cuando la lipasa es normal."},{"question":"¿Pueden estas enzimas estar elevadas sin pancreatitis?","answer":"Sí, niveles ligeramente elevados pueden ocurrir con enfermedad renal, problemas de vesícula biliar, problemas intestinales o ciertos medicamentos. Niveles 3+ veces lo normal, especialmente cuando ambas enzimas están elevadas, son altamente específicos para pancreatitis."},{"question":"¿Qué tan rápido se elevan estas enzimas?","answer":"La amilasa se eleva dentro de 6-12 horas de pancreatitis aguda y regresa a lo normal en 3-5 días. La lipasa se eleva dentro de 4-8 horas y permanece elevada por 8-14 días. Analizar ambas te da la mejor oportunidad de detección independientemente del momento."}],"createdAt":{"_nanoseconds":479000000,"_seconds":1769634724}},{"id":"panel-pancreatic-comprehensive","name":"Comprehensive Pancreatic Health Panel","description":"Complete pancreatic assessment including enzymes, glucose metabolism, insulin function, liver/biliary markers, inflammation, and metabolic risk factors.","category":"metabolic","tests":["amylase","lipase","cmp","hemoglobin-a1c","insulin-fasting","hs-crp","cbc-diff","ggt","lipid-panel"],"price":84,"savings":4.5,"fastingRequired":true,"metaTitle":"Comprehensive Pancreatic Health Panel - $82.50 (Save $7) | Full Assessment | JustLabs","metaDescription":"Complete pancreatic health assessment for $82.50. Includes enzymes, glucose/insulin, liver function, inflammation, CBC, and lipids. 9 tests in one panel. Fasting required.","h1Title":"Comprehensive Pancreatic Health Panel - Complete Assessment","shortSummary":"The most thorough pancreatic health assessment available. Evaluates pancreatic enzymes, glucose metabolism, insulin function, liver/biliary status, inflammation, and metabolic risk factors in one comprehensive panel.","longDescription":"This comprehensive panel goes far beyond basic enzyme testing to evaluate all aspects of pancreatic health and its connections to metabolic function.\n\n**Core Pancreatic Markers:**  \n• **Lipase** - The gold standard for pancreatic inflammation  \n• **Amylase** - Quick-rising marker for acute pancreatitis\n\n**Glucose and Endocrine Function:**  \nThe pancreas produces insulin, making glucose monitoring essential:  \n• **Fasting Glucose** (from CMP) - Current blood sugar level  \n• **Hemoglobin A1c** - 2-3 month blood sugar averag  \n• **Fasting Insulin** - Direct measure of pancreatic insulin production  \n\n**Inflammation and Systemic Response:**  \n• **C-Reactive Protein (hs-CRP)** - Inflammation marker  \n• **Complete Blood Count (CBC)** - Immune response and overall health  \n\n**Liver and Biliary Overlap:**  \nPancreatic and liver/biliary issues often coexist:  \n• **ALT, AST** - Liver enzymes (from CMP)  \n• **Alkaline Phosphatase** - Liver/biliary marker (from CMP)  \n• **Total Bilirubin** - Bile duct obstruction indicator (from CMP)  \n• **GGT** - Sensitive biliary marker  \n\n**Metabolic and Risk Factors:**  \n• **Triglycerides** (from Lipid Panel) - High levels linked to pancreatitis  \n• **Calcium** (from CMP) - Hypercalcemia can cause pancreatitis","whatItMeasures":"This panel measures 50+ individual biomarkers across 9 tests: pancreatic enzymes (amylase, lipase), comprehensive metabolic panel (glucose, calcium, liver enzymes, kidney function, electrolytes), HbA1c, fasting insulin, inflammation (hs-CRP), blood counts (CBC), GGT, and lipids (including triglycerides).","whoIsItFor":"Those with chronic or recurrent pancreatitis, people with risk factors for pancreatic disease (gallstones, high triglycerides, heavy alcohol use), diabetics wanting to assess pancreatic health, anyone with upper abdominal symptoms, and those seeking a comprehensive baseline of pancreatic and metabolic function.","symptomsAddressed":["Chronic abdominal pain","Recurrent pancreatitis episodes","Digestive problems","Unexplained weight loss","Fatty stools (steatorrhea)","New-onset diabetes","Nausea after fatty meals","Back pain with abdominal symptoms","Jaundice","Blood sugar fluctuations"],"conditionsScreened":["Acute pancreatitis","Chronic pancreatitis","Pancreatic insufficiency","Type 3c diabetes (pancreatic diabetes)","Gallstone disease","Biliary obstruction","Hypertriglyceridemia-induced pancreatitis","Alcoholic pancreatitis","Metabolic syndrome with pancreatic involvement"],"whenToTest":"Fasting for 10-12 hours is required for accurate insulin, glucose, and triglyceride results. Schedule for morning testing. Useful for initial comprehensive workup or annual monitoring of chronic conditions.","preparationInstructions":"Fast for 10-12 hours before testing (water is allowed). Avoid alcohol for 48 hours prior (important for accurate liver and pancreatic enzyme interpretation). Continue medications unless directed otherwise by your provider.","resultsOverview":"You'll receive a comprehensive report covering pancreatic enzymes, metabolic panel, blood sugar markers, inflammation, blood counts, liver function, and lipids. Key targets: Lipase <60, Amylase 30-110, Fasting glucose <100, HbA1c <5.7%, Fasting insulin <10, hs-CRP <1.0, Triglycerides <150, GGT within range.","faqs":[{"question":"Why include liver tests in a pancreatic panel?","answer":"The pancreas and liver share the biliary system. Gallstones are the #1 cause of acute pancreatitis, and biliary obstruction affects both organs. Liver enzymes and bilirubin help identify biliary involvement."},{"question":"Why test insulin with pancreatic enzymes?","answer":"The pancreas produces both digestive enzymes AND insulin. Chronic pancreatitis can damage insulin-producing cells, causing \"type 3c diabetes.\" Testing insulin helps assess endocrine pancreatic function alongside exocrine function."},{"question":"Why are triglycerides important for pancreatic health?","answer":"Very high triglycerides (>500 mg/dL) can trigger acute pancreatitis. Monitoring triglycerides helps identify this risk factor and guides preventive measures."},{"question":"How is this different from the Pancreatic Enzymes Panel?","answer":"The Enzymes Panel tests only amylase and lipase - ideal for acute symptoms. This Comprehensive Panel adds glucose metabolism, insulin function, liver/biliary markers, inflammation, and lipids for a complete picture of pancreatic health and related systems."}],"relatedTests":["vitamin-d","magnesium-serum","vitamin-b12"],"relatedPanels":["panel-pancreatic-enzymes","panel-metabolic-complete","panel-diabetes-comprehensive"],"name_es":"Panel Integral de Salud Pancreática","whenToTest_es":"Se requiere ayuno de 10-12 horas para resultados precisos de insulina, glucosa y triglicéridos. Programar para pruebas por la mañana. Útil para evaluación inicial integral o monitoreo anual de condiciones crónicas.","metaDescription_es":"Evaluación completa de salud pancreática por $79. Incluye enzimas, glucosa/insulina, función hepática, inflamación, CBC y lípidos. 9 pruebas en un panel. Requiere ayuno.","preparationInstructions_es":"Ayunar por 10-12 horas antes de la prueba (se permite agua). Evitar alcohol por 48 horas previas (importante para interpretación precisa de enzimas hepáticas y pancreáticas). Continuar medicamentos a menos que su proveedor indique lo contrario.","h1Title_es":"Panel Integral de Salud Pancreática - Evaluación Completa","metaTitle_es":"Panel Integral de Salud Pancreática - $79 (Ahorra $7) | Evaluación Completa | JustLabs","symptomsAddressed_es":["Dolor abdominal crónico","Episodios recurrentes de pancreatitis","Problemas digestivos","Pérdida de peso inexplicable","Heces grasosas (esteatorrea)","Diabetes de inicio reciente","Náuseas después de comidas grasosas","Dolor de espalda con síntomas abdominales","Ictericia","Fluctuaciones de azúcar en sangre"],"whoIsItFor_es":"Aquellos con pancreatitis crónica o recurrente, personas con factores de riesgo para enfermedad pancreática (cálculos biliares, triglicéridos altos, consumo excesivo de alcohol), diabéticos que desean evaluar la salud pancreática, cualquier persona con síntomas abdominales superiores, y aquellos que buscan una línea base integral de función pancreática y metabólica.","resultsOverview_es":"Recibirás un informe integral cubriendo enzimas pancreáticas, panel metabólico, marcadores de azúcar en sangre, inflamación, conteos sanguíneos, función hepática y lípidos. Objetivos clave: Lipasa <60, Amilasa 30-110, Glucosa en ayunas <100, HbA1c <5.7%, Insulina en ayunas <10, hs-CRP <1.0, Triglicéridos <150, GGT dentro del rango.","longDescription_es":"Este panel integral va mucho más allá de las pruebas básicas de enzimas para evaluar todos los aspectos de la salud pancreática y sus conexiones con la función metabólica.\n\n**Marcadores Pancreáticos Principales:**\n• **Lipasa** - El estándar de oro para inflamación pancreática\n• **Amilasa** - Marcador de elevación rápida para pancreatitis aguda\n\n**Función de Glucosa y Endocrina:**\nEl páncreas produce insulina, haciendo esencial el monitoreo de glucosa:\n• **Glucosa en Ayunas** (del CMP) - Nivel actual de azúcar en sangre\n• **Hemoglobina A1c** - Promedio de azúcar en sangre de 2-3 meses\n• **Insulina en Ayunas** - Medida directa de producción de insulina pancreática\n\n**Inflamación y Respuesta Sistémica:**\n• **Proteína C Reactiva (hs-CRP)** - Marcador de inflamación\n• **Conteo Sanguíneo Completo (CBC)** - Respuesta inmune y salud general\n\n**Superposición Hepática y Biliar:**\nLos problemas pancreáticos y hepáticos/biliares a menudo coexisten:\n• **ALT, AST** - Enzimas hepáticas (del CMP)\n• **Fosfatasa Alcalina** - Marcador hepático/biliar (del CMP)\n• **Bilirrubina Total** - Indicador de obstrucción del conducto biliar (del CMP)\n• **GGT** - Marcador biliar sensible\n\n**Factores Metabólicos y de Riesgo:**\n• **Triglicéridos** (del Panel de Lípidos) - Niveles altos relacionados con pancreatitis\n• **Calcio** (del CMP) - La hipercalcemia puede causar pancreatitis","conditionsScreened_es":["Pancreatitis aguda","Pancreatitis crónica","Insuficiencia pancreática","Diabetes tipo 3c (diabetes pancreática)","Enfermedad de cálculos biliares","Obstrucción biliar","Pancreatitis inducida por hipertrigliceridemia","Pancreatitis alcohólica","Síndrome metabólico con afectación pancreática"],"description_es":"Evaluación pancreática completa incluyendo enzimas, metabolismo de glucosa, función de insulina, marcadores hepáticos/biliares, inflamación y factores de riesgo metabólico.","shortSummary_es":"La evaluación más completa de salud pancreática disponible. Evalúa enzimas pancreáticas, metabolismo de glucosa, función de insulina, estado hepático/biliar, inflamación y factores de riesgo metabólico en un panel integral.","whatItMeasures_es":"Este panel mide más de 50 biomarcadores individuales en 9 pruebas: enzimas pancreáticas (amilasa, lipasa), panel metabólico completo (glucosa, calcio, enzimas hepáticas, función renal, electrolitos), HbA1c, insulina en ayunas, inflamación (hs-CRP), conteos sanguíneos (CBC), GGT y lípidos (incluyendo triglicéridos).","faqs_es":[{"question":"¿Por qué incluir pruebas hepáticas en un panel pancreático?","answer":"El páncreas y el hígado comparten el sistema biliar. Los cálculos biliares son la causa #1 de pancreatitis aguda, y la obstrucción biliar afecta a ambos órganos. Las enzimas hepáticas y la bilirrubina ayudan a identificar la participación biliar."},{"question":"¿Por qué analizar insulina con enzimas pancreáticas?","answer":"El páncreas produce tanto enzimas digestivas COMO insulina. La pancreatitis crónica puede dañar las células productoras de insulina, causando 'diabetes tipo 3c'. Analizar insulina ayuda a evaluar la función endocrina pancreática junto con la función exocrina."},{"question":"¿Por qué son importantes los triglicéridos para la salud pancreática?","answer":"Los triglicéridos muy altos (>500 mg/dL) pueden desencadenar pancreatitis aguda. Monitorear los triglicéridos ayuda a identificar este factor de riesgo y guía las medidas preventivas."},{"question":"¿Cómo es diferente este del Panel de Enzimas Pancreáticas?","answer":"El Panel de Enzimas analiza solo amilasa y lipasa - ideal para síntomas agudos. Este Panel Integral añade metabolismo de glucosa, función de insulina, marcadores hepáticos/biliares, inflamación y lípidos para una imagen completa de la salud pancreática y sistemas relacionados."}]},{"id":"glp1-panel","name":"GLP1 Monitoring Panel","description":"Track your health on Ozempic, Wegovy, Mounjaro, or Zepbound with 5 essential blood tests for $49. Liver, metabolic, cholesterol, thyroid & blood counts. No doctor visit, results in 1–3 days at 2,200+ Quest locations.","category":"general","tests":["cmp","lipid-panel","hemoglobin-a1c","tsh","cbc-diff"],"price":37,"showOnHomePopular":true,"relatedPanels":["panel-metabolic-complete","panel-wellness-comprehensive","panel-longevity"],"relatedTests":["cmp","cbc"],"whoIsItFor":"- You're currently taking Ozempic, Wegovy, Rybelsus, Mounjaro, or Zepbound and need routine monitoring\n- You're about to start a GLP-1 medication and want baseline labs before your first dose\n- Your telehealth provider (Hims, Ro, Found, Calibrate, Sequence) recommends blood work but doesn't include it in your subscription\n- Your doctor prescribed a GLP-1 and you want affordable lab work without going through insurance\n- You're on compounded semaglutide or tirzepatide and want to make sure your levels look good","whatItMeasures":"This panel evaluates five key areas of health affected by GLP-1 medications:\n\n- **Liver function & safety** — ALT, AST, alkaline phosphatase, bilirubin, and albumin via CMP. Monitors for medication-related liver stress and the effects of rapid weight loss on liver enzymes.\n- **Metabolic health** — Fasting glucose (CMP) and HbA1c together give a complete picture of blood sugar control, both current and over the past 2–3 months.\n- **Cardiovascular risk** — Total cholesterol, LDL, HDL, and triglycerides. GLP-1 medications have been shown to improve lipid profiles — this tracks that progress.\n- **Thyroid function** — TSH levels can shift as your weight changes, especially if you're already managing hypothyroidism. Catching changes early helps keep your thyroid medication dialed in.\n- **Blood cell health** — CBC screens for anemia, infection, and nutritional deficiencies that can develop when caloric intake drops significantly during GLP-1 therapy.","metaTitle":"GLP-1 Monitoring Panel — $37 | Ozempic & Mounjaro Blood Tests | JustLabs","metaDescription":"Track your health on Ozempic, Wegovy, Mounjaro, or Zepbound with 5 essential blood tests for $49. Liver, metabolic, cholesterol, thyroid & blood counts. No doctor visit, results in 1–3 days at 2,200+ Quest locations.","h1Title":"GLP-1 Health Check","shortSummary":"5 essential blood tests to monitor your health on GLP-1 medications like Ozempic, Wegovy, Mounjaro, and Zepbound. Covers liver function, blood sugar, cholesterol, thyroid, and blood counts — everything your provider wants to see.","longDescription":"If you're taking a GLP-1 medication — semaglutide (Ozempic, Wegovy, Rybelsus) or tirzepatide (Mounjaro, Zepbound) — regular blood work helps you and your provider make sure everything is on track.\n\nThe GLP-1 Health Check bundles the five tests most commonly recommended for patients on weight loss and diabetes medications into a single, affordable panel. It covers liver safety, metabolic progress, cardiovascular improvements, thyroid function, and general health markers.\n\n**What's included:**\n\n- **Comprehensive Metabolic Panel (CMP)** — Liver enzymes (ALT, AST), kidney function, glucose, and electrolytes. Liver monitoring is especially important for patients on tirzepatide.\n- **Lipid Panel** — Total cholesterol, LDL, HDL, and triglycerides. Tracks one of the major cardiovascular benefits of GLP-1 therapy.\n- **Hemoglobin A1c** — Your average blood sugar over the past 2–3 months. The gold standard for measuring metabolic improvement.\n- **TSH (Thyroid Stimulating Hormone)** — Significant weight loss can shift your thyroid hormone needs. Particularly important if you're on levothyroxine or have a history of thyroid issues.\n- **Complete Blood Count (CBC)** — Red and white blood cells, hemoglobin, and platelets. Screens for anemia and nutritional deficiencies that can occur with reduced caloric intake.\n\nMost providers recommend baseline labs before starting GLP-1 therapy and follow-up testing every 3–6 months. At $49, the GLP-1 Health Check costs a fraction of what hospitals and traditional labs charge — with the same Quest Diagnostics labs and physician-reviewed results.","resultsOverview":"Results are available online in 1–3 business days through your JustLabs dashboard. Each biomarker is displayed with your value, the normal reference range, and a clear explanation of what it means. Your results are reviewed by a licensed physician and can be shared directly with your prescribing provider.\n\nOver time, you can track trends across all your panels in one place — making it easy to see how your metabolic health, liver function, and cholesterol are improving on GLP-1 therapy","conditionsScreened":["type 2 diabetes","prediabetes","high cholesterol","liver dysfunction","thyroid disorders","anemia","metabolic syndrome","cardiovascular risk","nutritional deficiency"],"preparationInstructions":"Fasting for 10–12 hours is required (water is fine). Schedule a morning appointment for easiest fasting. Take your GLP-1 medication as usual — do not skip a dose for this test. If you take thyroid medication (levothyroxine), take it as normal. Avoid alcohol for 24 hours before testing for the most accurate liver enzyme results.","symptomsAddressed":["weight gain","fatigue","high blood sugar","high cholesterol","elevated liver enzymes","thyroid changes","metabolic syndrome","low energy on GLP-1","appetite changes"],"fastingRequired":true,"whenToTest":"Before starting GLP-1 medication (baseline), every 3–6 months during active therapy, when changing dose, if experiencing new symptoms (fatigue, nausea, abdominal pain), and annually for long-term maintenance.","popular":true,"savings":2.5}],"categories":[{"id":"thyroid","name":"Thyroid","description":"Thyroid function and autoimmune markers","icon":"🦋"},{"id":"hormone","name":"Hormones","description":"Sex hormones, stress hormones, and more","icon":"⚡"},{"id":"metabolic","name":"Metabolic","description":"Metabolism, energy, and organ function","icon":"🔥"},{"id":"cardiovascular","name":"Heart Health","description":"Cholesterol, lipids, and cardiac risk","icon":"❤️"},{"id":"vitamin","name":"Vitamins & Minerals","description":"Nutrient status and deficiencies","icon":"💊"},{"id":"autoimmune","name":"Autoimmune","description":"Autoimmune disease markers","icon":"🛡️"},{"id":"fertility","name":"Fertility","description":"Reproductive health and hormone levels","icon":"🌸"},{"id":"diabetes","name":"Diabetes","description":"Blood sugar and insulin markers","icon":"🩸"},{"id":"liver","name":"Liver","description":"Liver function and enzymes","icon":"🫀"},{"id":"kidney","name":"Kidney","description":"Kidney function markers","icon":"🫘"},{"id":"inflammation","name":"Inflammation","description":"Inflammatory markers","icon":"🔬"},{"id":"sti","name":"STI Testing","description":"Sexual health and infectious disease screening","icon":"🔒"},{"id":"mens-health","name":"Men's Health","description":"Prostate health and male-specific markers","icon":"👨"},{"id":"general","name":"General Health","description":"Comprehensive health panels","icon":"✨"}]}