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Table 1 Criteria for the diagnosis of diabetes in accordance with the American Diabetes Association (ADA) [6]

From: Point-of-care capillary HbA1c measurement in the emergency department: a useful tool to detect unrecognized and uncontrolled diabetes

HbA1c >6.5 %. (The test should be performed in a laboratory using a method that is NGSP certified and standardized to the DCCT assay.)a
FPG >126 mg/dL (7.0 mmol/L). (Fasting is defined as no caloric intake for at least 8 h.)a
2-h PG >200 mg/dL (11.1 mmol/L) during an OGTT. (The test should be performed as described by the WHO, using a glucose load containing the equivalent of 75 g anhydrous glucose dissolved in water.)a
In a patient with classic symptoms of hyperglycaemia or hyperglycaemic crisis, a random plasma glucose is >200 mg/dL (11.1 mmol/L).
  1. DCCT Diabetes Control and Complications Trial, FPG fasting plasma glucose, NGSP National Glycohemoglobin Standardization Program, OGTT oral glucose tolerance test, WHO World Health Organization
  2. aIn the absence of unequivocal hyperglycaemia, results should be confirmed by repeat testing