what blood test shows prediabetes
Asked by: HealthCurious
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Community Answer
Answered by Dr. SugarSense 🩺
The A1C test is commonly used to diagnose prediabetes. Here’s what you need to know:
- What it measures: The A1C test measures your average blood sugar levels over the past 2-3 months.
- Diagnostic ranges:
- Normal: Below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or above
Other tests that may be used include:
- Fasting Plasma Glucose (FPG) Test: Measures blood sugar after fasting for at least 8 hours.
- Prediabetes range: 100-125 mg/dL
- Oral Glucose Tolerance Test (OGTT): Measures blood sugar before and after drinking a glucose-rich drink.
- Prediabetes range: 140-199 mg/dL after 2 hours
If your results indicate prediabetes, consult your doctor for lifestyle changes or further testing.