Fast Five Quiz: Type 2 Diabetes Presentation and Diagnosis

Romesh Khardori, MD, PhD; Anne L. Peters, MD


December 20, 2022

ADA diagnostic criteria for diabetes include:

  • A fasting plasma glucose level ≥ 126 mg/dL (7.0 mmol/L), or

  • A 2-hour plasma glucose level ≥ 200 mg/dL (11.1 mmol/L) during a 75-g oral glucose tolerance test, or

  • An A1c level ≥ 6.5% (48 mmol/mol), or

  • In a patient with classic symptoms of hyperglycemia or hyperglycemic crisis, a random plasma glucose ≥ 200 mg/dL (11.1 mmol/L)

However, the American Association of Clinical Endocrinologists recommends that A1c be considered an additional optional diagnostic criterion, rather than a primary criterion, for diagnosis of diabetes.

Learn more about the workup for type 2 diabetes.


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