DefinitionThe growth hormone (GH) stimulation test measures the level of growth hormone (GH) in the blood after you receive medication that triggers the release of GH, such as arginine or GH-releasing hormone. The test measures the ability of the pituitary gland to release GH.See also:Growth hormone deficiencyShort statureAlternative NamesArginine test; Arginine-GHRH testHow the test is performedThe site is cleaned with germ-killing medicine (antiseptic). An IV is usually placed in a vein, typically in the inside of the elbow or the back of the hand.The health care provider wraps an elastic band around the upper arm to apply pressure to the area and make the vein swell with blood.Next, the health care provider gently inserts a needle into the vein. The needle is removed while the IV is lef