title: Comparison of oral and intravenous glucose tolerance tests in the diagnosis of diabetes in pregnancy.
abstract: Forty potentially diabetic patients in the third trimester of pregnancy had an oral glucose tolerance test (OGTT)) and an intravenous glucose tolerance test (IVGTT); in only three were both test "diabetic". Of the 21 patients with a normal OGTT, 9 were "borderline" and 3 "diabetic" when tested by an IVGTT. Patients with an abnormal IVGTT but a normal OGTT were left untreated and allowed to go into labour spontaneously with a favourable outcome. There were no convincing relations between the results of the GTTs and levels of insulin, HPL or cortisol.
mesh_terms: D000284:Administration, Oral; D000293:Adolescent; D000328:Adult; D005260:Female; D005947:Glucose / Q000008:administration & dosage; D005951:Glucose Tolerance Test / Q000379:methods; D006801:Humans; D007275:Injections, Intravenous; D011247:Pregnancy; D011254:Pregnancy in Diabetics / Q000175:diagnosis*
chemical_list: D005947:Glucose