Somatostatin is a neurohormone produced in the brain, hypothalamus, and gastrointestinal tract. High concentrations are associated with Somatostatinomas occuring in the pancreas. Elevations are also seen in other Gastrointestinal endocrine secreting tumors, Medullary Thyroid carcinoma and Pheochromocytoma.
No special preparation required
Sample by 7th of the month; Report after 2–3 weeks