What does a vitamin D test measure?

It measures 25-hydroxyvitamin D (25-OH D) in your blood — the storage form of vitamin D that reflects both sun exposure and dietary/supplement intake over the past 2-3 weeks.

Do I need to fast for a vitamin D test?

No. Vitamin D can be tested at any time without fasting.

What conditions does vitamin D help diagnose?

Vitamin D testing helps diagnose vitamin D deficiency, which contributes to osteoporosis, fatigue, depression, frequent infections, and muscle weakness.

How long does it take to get results?

Vitamin D results are typically available within 1-2 business days after your blood draw.

¿Qué Mide la Prueba de Vitamin D?

The vitamin D test measures 25-hydroxyvitamin D in your blood, which is the best indicator of your overall vitamin D status. Vitamin D is essential for calcium absorption, bone health, immune function, and mood regulation. Unlike most vitamins, your body produces vitamin D from sunlight exposure, making deficiency common in people with limited sun exposure.

Cómo Funciona la Prueba

La prueba de Vitamin D se realiza mediante una extracción de sangre estándar en cualquier ubicación de Quest Diagnostics. Su muestra se envía a un laboratorio certificado CLIA para análisis. Los resultados generalmente están disponibles en 1-2 días hábiles en su cuenta de JustLabs.

Condiciones que Ayuda a Diagnosticar

Deficiencia de Vitamina D Hipotiroidismo

Quién Debe Hacerse Esta Prueba

Anyone with fatigue, bone pain, or depression; people with limited sun exposure; darker-skinned individuals; adults over 50; people who are overweight; and anyone taking vitamin D supplements to verify dosage.

Ordene su prueba de Vitamin D — $22

Ordenar Vitamin D

Frequently Asked Questions

Precio de Vitamin D Rango Normal de Vitamin D