what does hgb a1c test for
Asked by: CuriousPatient123
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Community Answer
Answered by Dr. SugarSense 🩺
The Hemoglobin A1C (HbA1c) test measures your average blood sugar levels over the past 2 to 3 months. It is commonly used to:
- Diagnose prediabetes and diabetes.
- Monitor how well your diabetes treatment plan is working.
How It Works:
- Glucose in your blood attaches to hemoglobin, a protein in red blood cells.
- The 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 over that period.
Key Ranges:
A1C Level Diagnosis
Below 5.7% Normal
5.7%–6.4% Prediabetes
6.5% or higher Diabetes
This test is a crucial tool for managing diabetes and assessing long-term blood sugar control.