5 Hydroxy Indole Acetic Acid, 24HrUrine

Description

This test measures the level of 5-HIAA, the main metabolite of serotonin, in a 24-hour urine sample. It’s primarily used to diagnose and monitor carcinoid tumors, which often produce excess serotonin. The test can also help in diagnosing other conditions that affect serotonin production or metabolism. Elevated levels may indicate carcinoid syndrome, certain types of cancer, or other serotonin-related disorders. The 24-hour collection ensures a comprehensive assessment of serotonin metabolism over time.