Identification, Screening, and Diagnosis of Diabetes in Pregnancy

GDM Definition, Etiology, Risk Factors, and Pathophysiology

Definition

Gestational diabetes mellitus (GDM) has been defined as any degree of carbohydrate intolerance with onset during pregnancy. This definition is a misnomer in that it includes unrecognized overt diabetes that may have been present prior to pregnancy as well as hyperglycemia that develops during pregnancy. Preexisting type 2 diabetes can often present as severe hyperglycemia during pregnancy.

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