(Normal range: 2-10 mg/24hr (10.5-52.3 mmol/24 hrs
Comment: Urinary levels of 5-HIAA are raised in midgut (ileal) carcinoid tumors, foregut carcinoid tumors, ovarian carcinoid tumors, Celiac sprue, tropical sprue, Whipple’s disease. Oat cell carcinoma of the bronchus and bronchial adenoma of carcinoid type. Decreased in depressive illness, small intestinal resection, mastocytosis, PKU, and Hartnup disease. Patient preparation: avoid bananas, eggplant, tomatoes, walnuts, pineapples, plums and all medications for at least 48 hours prior to and during collection
Sample: 24hr urine