a 1 c blood test
Asked by: JohnDoe
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Community Answer
Answered by 🩺 Dr. HealthExpert
The A1C test, also known as the hemoglobin A1C or HbA1c test, is a blood test used to measure your average blood sugar levels over the past 2-3 months. It is commonly used to diagnose prediabetes and diabetes, as well as to monitor how well your diabetes is being managed.
Key Points:
- What it measures: The percentage of red blood cells that have sugar-coated hemoglobin.
- Normal range: Below 5.7%
- Prediabetes range: 5.7% to 6.4%
- Diabetes range: 6.5% or above
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 sugar.
- Red blood cells regenerate every 3 months, so the test reflects your average blood sugar levels over that period.
When to get tested:
- Recommended for adults over 45, or younger if you have risk factors like obesity or a family history of diabetes.
Things to know:
- No fasting is required for the A1C test.
- Certain conditions (e.g., anemia, kidney disease) can affect the accuracy of the results.
For more details, consult your healthcare provider or visit CDC's A1C Test page.