impaired glucose tolerance


im·pair·ed glu·cose tol·er·ance

excessive levels (110-126 mg/dL) of blood glucose developing after a carbohydrate-rich meal or test dosage of glucose (usually 75 g). Not necessarily diagnostic for diabetes mellitus.

im·pair·ed glu·cose tol·er·ance

(IGT) (im-pārd glūkōs tolĕr-ăns) A disordered state in which a patient does not process glucose properly but such activity does not confirm a diagnosis of diabetes mellitus.
See also: Type 1 diabetes, Type 2 diabetes

impaired glucose tolerance

Abbreviation: IGT
Altered glucose metabolism in which fasting blood sugars are less than 126 mg/dl, and blood sugar levels are over 140 mg/dl but less than 200 mg/dl 2 hr after drinking 75 g of glucose.

CAUTION!

Having either impaired glucose tolerance or impaired fasting glucose predisposes patients to diabetes mellitus, heart attack, stroke, and early death. Patients with abnormal glucose metabolism ought to receive professional dietary counseling. They should also begin a program of regular physical exercise.See also: tolerance