GROWTH HORMONE (GH)
1-SST/1mL SERUM. After 30 minutes of clotting, promptly centrifuge and refrigerate (if specimen is not received in the lab within 24 hours, aliquot and freeze serum).
24HRS REFRIGERATED/7 DAYS FROZEN
Growth is stimulated and controlled by the anabolic and mitogenic activities of growth hormone (GH) and the insulin-like growth factors (IGFs).