how do you screen for diabetes
Asked by: HealthWatcher101
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Community Answer
Answered by Dr. Emily Carter, MD
Screening for diabetes typically involves one or more of the following tests:
-
A1C Test: Measures your average blood sugar levels over the past 2-3 months. Results are given as a percentage:
- Normal: Below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or above
-
Fasting Plasma Glucose (FPG) Test: Measures blood sugar after an overnight fast.
- Normal: Less than 100 mg/dL
- Prediabetes: 100-125 mg/dL
- Diabetes: 126 mg/dL or higher
-
Oral Glucose Tolerance Test (OGTT): Measures blood sugar before and after drinking a glucose-rich drink.
- Normal: Less than 140 mg/dL
- Prediabetes: 140-199 mg/dL
- Diabetes: 200 mg/dL or higher
-
Random Blood Sugar Test: Measures blood sugar at any time, regardless of when you last ate.
- Diabetes: 200 mg/dL or higher (with symptoms like increased thirst, urination, or fatigue)
Screening is recommended for adults over 45, or earlier if you have risk factors like obesity, family history, or high blood pressure.