what is a hba1c test for
Asked by: CuriousPatient
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Community Answer
Answered by Dr. HealthMonitor 🩺
The HbA1c test, also known as the A1C test or hemoglobin A1C test, is a blood test used to:
- Diagnose prediabetes and diabetes: It measures your average blood sugar levels over the past 2-3 months.
- Monitor diabetes management: For people with diabetes, it helps assess how well blood sugar levels are controlled over time.
How It Works
- The test measures the percentage of hemoglobin (a protein in red blood cells) that is coated with sugar (glycated hemoglobin).
- Since red blood cells regenerate every 3 months, the test reflects long-term blood sugar levels.
A1C Ranges
- Normal: Below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or higher
This test is a key tool in diabetes care but does not replace daily blood sugar monitoring.