How is type 2 diabetes diagnosed?

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Type 2 diabetes is diagnosed through several blood tests. The most common are: the A1C test (measures average blood sugar over 2-3 months; 6.5% or higher indicates diabetes), fasting blood sugar test (126 mg/dL or higher after fasting overnight), and the oral glucose tolerance test (200 mg/dL or higher two hours after drinking a glucose solution). Your doctor may repeat the test to confirm the diagnosis.

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