title: Value of the glucagon test in screening for hepatic glycogen storage disease.
abstract: The fasting glucagon test of 40 patients with hepatic glycogen storage disease (type I, 13 patients; type Ib, 5 patients; type III, 12 patients; type IX (phosphorylase kinase deficiency), 10 patients) has been reviewed. In all patients with types Ib and III the blood glucose level rose less than 1 mmol/1 but in types 1 and IX there was wide variation in response. Blood lactate levels were greater than 2.4 mmol/1 in all patients with type I and Ib 120 minutes after the administration of glucagon but were lower than 2.4 mmol/1 in types III and IX. The value of this test for screening was analysed using several criteria. From the data a simplified scheme for the investigation of patients with suspected hepatic glycogen storage disease is proposed.
mesh_terms: D001786:Blood Glucose / Q000032:analysis; D005215:Fasting; D005934:Glucagon; D006008:Glycogen Storage Disease / Q000175:diagnosis*; D006801:Humans; D007773:Lactates / Q000097:blood; D019344:Lactic Acid; D008107:Liver Diseases / Q000175:diagnosis
chemical_list: D001786:Blood Glucose; D007773:Lactates; D019344:Lactic Acid; D005934:Glucagon