what is hgba1c

HbA1c, or Hemoglobin A1c, is a blood test that measures your average blood sugar (glucose) levels over the past 2 to 3 months. It is commonly used to diagnose and monitor diabetes and prediabetes.

How Does HbA1c Work?

• Glucose in your blood attaches to hemoglobin, a protein in red blood cells.
• The HbA1c test measures the percentage of hemoglobin that is coated with sugar.
• Since red blood cells regenerate every 3 months, the test reflects your average blood sugar levels over that period.

HbA1c Ranges:

HbA1c Level Diagnosis

Below 5.7% Normal
5.7% - 6.4% Prediabetes
6.5% or above Diabetes

Why is HbA1c Important?

• It helps in diagnosing diabetes and prediabetes.
• It provides a long-term view of blood sugar control, unlike daily glucose tests.
• It is used to adjust diabetes treatment plans.

For more details, visit CDC's A1C Test Page.