what is the hemoglobin a1c test
Asked by: CuriousPatient123
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Community Answer
Answered by Dr. HealthMonitor 🩺
The Hemoglobin A1C (HbA1c) 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
- Monitor blood sugar control in people with diabetes
How It Works
- Glucose in your blood attaches to hemoglobin, a protein in red blood cells.
- The A1C test measures the percentage of hemoglobin coated with glucose.
- Since red blood cells regenerate every 3 months, the test reflects your average blood sugar over that period.
A1C Ranges
- Normal: Below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or higher
Why It’s Important
- It provides a long-term view of blood sugar levels, unlike daily glucose tests.
- It helps healthcare providers adjust treatment plans for diabetes management.
For more details, consult your healthcare provider or visit trusted sources like the CDC.