what is a glycohemoglobin test
Asked by: CuriousPatient123
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Community Answer
Answered by Dr. HealthMonitor 🩺
A glycohemoglobin test, also known as 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, as well as to monitor how well you are managing your diabetes over time.
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 glucose.
- Since red blood cells regenerate every 3 months, the test reflects your average blood sugar levels over that period.
Key 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 diabetes management.
For more details, visit CDC's A1C Test Page.