what is ac1 test for diabetes
Asked by: GlucoseCurious
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Community Answer
Answered by Dr. SugarSense 🩺
The A1C test, also known as the hemoglobin A1C or HbA1c test, is a blood test used to diagnose and monitor diabetes and prediabetes. It measures your average blood sugar levels over the past 2-3 months by assessing the percentage of hemoglobin in your red blood cells that is coated with sugar (glycated hemoglobin).
Key Points:
- Diagnosis: The A1C test is used to diagnose prediabetes and diabetes.
- Normal: Below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or above
- Monitoring: For people with diabetes, the A1C test helps track how well blood sugar levels are managed over time.
- Frequency: Most people with diabetes should have the A1C test at least twice a year.
How It Works:
- Glucose in the bloodstream attaches to hemoglobin in red blood cells.
- The A1C test measures the percentage of hemoglobin that is glycated.
- Since red blood cells regenerate every 3 months, the test reflects average blood sugar levels over that period.
Why It’s Important:
- It provides a long-term view of blood sugar control, unlike daily glucose tests, which only show a snapshot.
- It helps healthcare providers adjust treatment plans to prevent complications.
For more details, visit the CDC's A1C Test page.