what does hgb a1c mean in a blood test
Asked by: CuriousPatient123
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Community Answer
Answered by Dr. Emily 🩺
The Hgb A1C (also known as HbA1c or A1C) test 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 prediabetes and diabetes, as well as to monitor how well your diabetes is being managed.
How It Works:
- Glucose in your blood attaches to hemoglobin, a protein in red blood cells.
- The A1C test measures the percentage of hemoglobin that is coated with sugar (glycated hemoglobin).
- Since red blood cells regenerate every 3 months, the test reflects your average blood sugar levels over that period.
A1C Ranges:
- Normal: Below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or above
This test is a key tool in diabetes management and helps healthcare providers assess your risk for diabetes-related complications.