Community Answer

Answered by Dr. Emily Carter, MD

To check for diabetes, healthcare providers typically use 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 sugary 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.

If you have risk factors for diabetes (e.g., obesity, family history, or high blood pressure), consult your doctor for regular screenings.

Last updated: 1/12/2025

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