Impact of GH Measurements on GHD Diagnosis

All patients underwent insulin-induced hypoglycaemia stimulation test also called insulin tolerance test (ITT), considered the 'gold standard' test for GHD diagnosis. Following insulin administration by venipuncture (1UI/mL), levels of hGH and glucose were monitored on serum and fluoride tube plasma, respectively, at intervals of 0, 30, 45, 60 and 90 minutes (T0, T30, T45, T60 and T90).