2 ML (1 ML MIN.) SERUM FROM 1 SST FOR EACH TIMED SPECIMEN. DRAW BASELINE SPECIMEN AFTER AN OVERNIGHT FAST. PATIENT SHOULD BE AT REST FOR 30 MINUTES PRIOR TO BASAL SAMPLE COLLECTION. ADMINISTER STIMULATING AGENT CLONIDINE (ARKAMINE) 300 UG OR 5UG / KG BODY WEIGHT ORALLY. DRAW ADDITIONAL SPECIMENS AT 30, 60 & 90 MINS. FOR GROWTH HORMONE. SHIP REFRIGERATED OR FROZEN. ALL CONTAINERS MUST BE CLEARLY MARKED WITH TIME DRAWN AND SUBMITTED WITH ONE TEST REQUEST FORM. OTHER STIMULATING AGENTS THAT CAN BE USED ARE: INSULIN (0.10 - 0.15 U / KG BODY WEIGHT IV FOLLOWED BY ADDITIONAL SAMPLES AT 30, 60 & 90 MIN). EXERCISE (20 MIN. VIGOROUS EXERCISE FOLLOWED BY IMMEDIATE SAMPLING).