what indicates diabetes in a blood test

Diabetes is typically diagnosed through blood tests that measure blood sugar levels. The following are key indicators:

• A1C Test:

  • Normal: Below 5.7%
  • Prediabetes: 5.7% to 6.4%
  • Diabetes: 6.5% or above

• Fasting Plasma Glucose (FPG) Test:

  • Normal: Less than 100 mg/dL
  • Prediabetes: 100 to 125 mg/dL
  • Diabetes: 126 mg/dL or higher

• Oral Glucose Tolerance Test (OGTT):

  • Normal: Less than 140 mg/dL
  • Prediabetes: 140 to 199 mg/dL
  • Diabetes: 200 mg/dL or higher

• Random Blood Sugar Test:

  • Diabetes: 200 mg/dL or higher, especially if accompanied by symptoms like increased thirst, frequent urination, or fatigue.

If your results fall into the prediabetes or diabetes range, your healthcare provider may recommend further testing or a treatment plan.