Community Answer

Answered by Dr. HealthMonitor 🩺

Yes, blood tests are commonly used to diagnose diabetes. The most common tests include:

  • 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 to 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 to 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 and urination.

These tests help healthcare providers determine if you have diabetes or prediabetes. Always consult your doctor for accurate diagnosis and management.

Last updated: 1/12/2025

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