CLONIDINE STIMULATION TEST FOR GH DEFICIENCY: A NEW LOOK AT SAMPLE TIMING.

Objective: In the glucagon stimulation test (GST), the occurrence of peak growth hormone (GH) levels at typical times is an indication of normal secretion. This has not been studied for the clonidine stimulation test (CST). The 120-minute time is rarely the peak, and previous reports suggest it can be omitted.