what is a1c test for
Asked by: GlucoseWatcher
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Community Answer
Answered by Dr. HealthMetrics 🩺
The A1C test, also known as the hemoglobin A1C or HbA1c 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 track how well blood sugar levels are controlled over time.
How It Works
- The test measures the percentage of red blood cells that have sugar-coated hemoglobin.
- Since red blood cells regenerate every 3 months, the A1C test reflects your average blood sugar levels during that period.
A1C Ranges
- Normal: Below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or above
Why It’s Important
- It provides a long-term view of blood sugar control, unlike daily glucose tests that only show a snapshot.
- It helps healthcare providers adjust treatment plans for better diabetes management.
For more details, visit CDC's A1C Test Page.