HbA1c Test: Purpose, Normal Range & Results
If you or a family member are keeping an eye on blood sugar, you've likely heard of the HbA1c test (also called A1C or hemoglobin A1c). Unlike a daily finger-prick test that gives you a quick snapshot of your blood sugar right at that second, the HbA1c test works like a 3-month memory tape. It tells you the bigger picture of your average blood glucose control over the past 8 to 12 weeks.
Healthcare professionals rely on this simple blood test to screen for prediabetes, diagnose Type 2 Diabetes, and keep track of how well an existing diabetes management plan is working.
📌 Key Takeaways: Quick Summary
- What it Measures: Average blood sugar over the last 2 to 3 months.
- Fasting Needed? No fasting required! You can take it any time of day.
- Normal Range: Below 5.7%
- Prediabetes Range: 5.7% to 6.4%
- Diabetes Threshold: 6.5% or higher (confirmed with repeat testing).
- Target for Diabetics: Generally under 7.0% (customized per person).
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| The HbA1c test provides an estimate of average blood glucose levels over the previous 2 to 3 months. |
