Lecture Notes: ADA Criteria for the Diagnosis of Diabetes Mellitus







 
1. A1C ≥6.5 percent.
The test should be performed in a laboratory using a method that is NGSP certified and standardized to the DCCT assay.

OR

2. FPG ≥126 mg/dL (7.0 mmol/L).
Fasting is defined as no caloric intake for at least 8 h.

OR

3. Two-hour plasma glucose ≥200 mg/dL (11.1 mmol/L) during an OGTT.
The test should be performed as described by the World Health Organization, using a glucose load containing the equivalent of 75 g anhydrous glucose dissolved in water.

OR 

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



Note:
  • A1C    : glycated hemoglobin
  • NGSP : National glycohemoglobin standardization program
  • DCCT : Diabetes control and complications trial
  • FPG    : fasting plasma glucose
  • OGTT : oral glucose tolerance test
 

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