The Diabetologist #21

For Diabetologist
ADA/JDRF Type 1 Diabetes Sourcebook,
Excerpt #1: Diagnosing Diabetes
Anne Peters, MD, and Lori Laffel,
MD, MPH, editors
Jane Lee Chiang, MD, managing editor
Diagnosing Diabetes
Michael J. Haller, MD
Standards of care endorsed by the American Diabetes Association (ADA) and the World Health Organization
(WHO) provide a number of overlapping criteria for the diagnosis of diabetes. Based
largely on data linked to risk of retinopathy in T2D patients, all subtypes of diabetes (with the
exception of gestational diabetes) are currently diagnosed by any one of the following: 1) fasting plasma
glucose ≥126 mg/dl (7.0mmol/L), 2) a 2-h plasma glucose ≥200 mg/dl during a formal oral glucose tolerance
test (OGTT) as described by the WHO, 3) classic symptoms of hyperglycemia (polyuria, polydipsia,
and weight loss) and a random plasma glucose ≥200mg/dl, or 4) hemoglobin A1c (A1C) ≥6.5% performed
and confirmed in a National Glycohemoglobin Standardization Program (NGSP) – certified assay
standardized to the Diabetes Control and Complications Trial (DCCT) (see Table 1.1).
issue 21 < May 2013
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