what is the meaning of hemoglobin a1c
Asked by: CuriousPatient123
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Community Answer
Answered by Dr. HealthMonitor 🩺
Hemoglobin A1C (HbA1c) 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 and monitor diabetes and prediabetes. Here’s how it works:
- 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 glucose.
- Normal Range:
- 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 which only show a snapshot.
For more details, visit CDC's A1C Test Guide.