what blood sugar level indicates diabetes

Diabetes is typically diagnosed based on blood sugar levels. The following ranges are used to diagnose diabetes:

• Fasting Blood Sugar Test:

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

• A1C Test:

  • Normal: Below 5.7%
  • Prediabetes: 5.7% to 6.4%
  • Diabetes: 6.5% 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 after 2 hours

If your results fall into the diabetes range, your doctor will likely recommend further testing and discuss a management plan.