5 - HYDROXYINDOLEACETIC ACID (5-HIAA) - (U)

Test Code: HIAA

Clinical Information; 
Include: 
Patient Preparation Instructions:  Patient should avoid food high in indoles:  avocados, banana, tomato, plum, walnut, pineapple, and eggplant.  Over-the-counter intake of tryptophan or 5-hydroxytryptophan will also produce elevated urine HIAA.  Patient should also avoid tobacco, tea and coffee for three days prior to specimen collected.

_SH Urine Testing Requisition (R250-10-95)

< 5 μmol/mmol creatinine

Within 2 Weeks

Performed at Health Sciences Centre by Shared Health  Biochemical Genetics Laboratory using UPLC/MS/MS.  This is a laboratory developed test.