Prediabetes:
•	A1C 5.7% to 6.4 %, or
•	FPG 100 to 125 mg/dL after an overnight fast indicates impaired fasting glucose, or
•	2-hour plasma glucose value 140–199 mg/dL post-75 g glucose challenge indicates impaired glucose tolerance
Diabetes:
•	A1C 6.5% or more,* or
•	FPG 126 mg/dL or more,* or
•	2-hour plasma glucose value 200 mg/dL or more post-75 g glucose challenge,* or
•	random plasma glucose 200mg/dL or more with symptoms (polyuria, polydipsia and unexplained weight loss)

FPG, fasting plasma glucose.

^*Repeat to confirm on a subsequent day unless symptoms are present.

Modified from American Diabetes Association. Standards of medical care in diabetes--2011. Diabetes Care 2011;34:S11–61.