What does an A1c test measure?

It measures the percentage of hemoglobin (protein in red blood cells) that has glucose permanently attached, reflecting your average blood sugar over 2-3 months.

Do I need to fast for an A1c test?

No. A1c does not require fasting — it reflects long-term averages, not your current blood sugar.

Is A1c better than fasting glucose?

They measure different things. A1c shows 2-3 month averages (more stable, no fasting needed). Fasting glucose shows current status. Both are useful together.

How long does it take to get results?

A1c results are typically available within 1-2 business days.

¿Qué Mide la Prueba de HbA1c?

The HbA1c test measures the percentage of hemoglobin in your red blood cells that has glucose attached to it, reflecting your average blood sugar control over the past 2-3 months. Unlike a fasting glucose test that captures a single moment, HbA1c shows the bigger picture of blood sugar management and is the gold standard for diagnosing and monitoring diabetes.

Cómo Funciona la Prueba

La prueba de HbA1c 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

Diabetes Tipo 2 Resistencia a la Insulina

Quién Debe Hacerse Esta Prueba

Anyone with diabetes risk factors (overweight, family history, sedentary lifestyle, PCOS), adults over 45, anyone with prediabetes, and diabetic patients monitoring treatment.

Ordene su prueba de HbA1c — $7

Ordenar HbA1c

Frequently Asked Questions

Precio de HbA1c Rango Normal de HbA1c