what is alc blood test
Asked by: CuriousPatient
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Community Answer
Answered by Dr. HealthGuide 🩺
The A1C blood test, also known as the hemoglobin A1C or HbA1c test, is a common blood test used to measure your average blood sugar (glucose) levels over the past 2 to 3 months. It is primarily 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 your red blood cells that have glucose-coated hemoglobin.
- Since red blood cells regenerate every 3 months, the test reflects your average blood sugar levels over that period.
A1C Results:
- 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 levels, 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.