. 2014 Aug 1;10(4):292–303. doi: 10.1089/chi.2013.0158

Table 3.

Summary of Criteria for Diagnosing Prediabetes and Diabetes^38,50

	Prediabetes	Diabetes^d
Fasting plasma glucose^a	100–125 mg/dL	≥126 mg/dL
2-hour plasma glucose (OGTT)^b	140–199 mg/dL	≥200 mg/dL
Random plasma glucose^c	Not applicable	≥200 mg/dL
Hemoglobin A1c	5.7–6.4%	≥6.5%

Adapted from the American Diabetes Association Recommendations.⁵⁰

^{^a}

Fasting for at least 8 hours with no calorie intake.

^{^b}

OGTT using a load 1.75 g/kg of body weight of glucose with a maximum of 75 g.

^{^c}

In patients with hyperglycemic crises or classic symptoms of hyperglycemia (e.g., polyuria, polydipsia).

^{^d}

In the absence of unequivocal hyperglycemia, diagnosis is confirmed if two different tests are above threshold or a single test is above threshold twice.

OGTT, oral glucose tolerance test; A1c, glycosylated hemoglobin.