. 2019 Jan;37(1):11–34. doi: 10.2337/cd18-0105

TABLE 3.

Criteria for the Screening and Diagnosis of Diabetes

	Prediabetes	Diabetes
A1C	5.7–6.4%^*	≥6.5%^†
FPG	100–125 mg/dL (5.6–6.9 mmol/L)^*	≥126 mg/dL (7.0 mmol/L)^†
OGTT	140–199 mg/dL (7.8–11.0 mmol/L)^*	≥200 mg/dL (11.1 mmol/L)^†
RPG		≥200 mg/dL (11.1 mmol/L)^‡

For all three tests, risk is continuous, extending below the lower limit of the range and becoming disproportionately greater at the higher end of the range.

^†

In the absence of unequivocal hyperglycemia, diagnosis requires two abnormal test results from the same sample or in two separate samples.

^‡

Only diagnostic in a patient with classic symptoms of hyperglycemia or hyperglycemic crisis.

RPG, random plasma glucose.