Somatostatin is a neurohormone produced in the brain, hypothalamus and gastrointestinal tract. This test is used to diagnose somatostatin-producing tumors. Elevated levels are observed with somatostatinoma, medullary thyroid carcinoma and pheochromocytoma.
Frozen (preferred) - 28 days
Refrigerated - 8 hours
Ambient - 8 hours
Extraction Immunoassay (IA)
≤ 30pg/mL