The (hGH) Human Growth hormone assay assists in clinically evaluating pituitary function and identifying abnormal growth hormone levels caused by non pituitary disease. A hGH stimulation test s, such as using insulin, glucagon, arginine, and growth hormone releasing hormone are required in patients with suspected GH deficiency. Tests: 60. Test volume: 30 μL. Sample type: Serum, Plasma, Whole blood.