5-HIAA (5- HYDROXY INDOLE ACETIC ACID), 24- HOUR URINE

Test Code

U034

Test Name

5-HIAA (5- HYDROXY INDOLE ACETIC ACID), 24- HOUR URINE

Also Known As

ACETIC, ACID, HIAA, HOUR, HYDROXY, INDOLE, URINE

Sample Type

50 mL (10 mL min.) aliquot of 24-hour urine. Collect urine with appropriate volume of 50% HCl to maintain pH between 1–2. Do not use concentrated HCl. Record 24 hour volume on test request form and urine container. Ship refrigerated or frozen. Patient should strictly avoid banana, kiwi, walnut, avocado, brinjal, pineapple, plum, tomato & drugs like Fluorouracil, Melphalan, Paracetamol & Acetaminophen, Heparin, L-dopa, Reserpine, Salicylates, Chlorpromazine, Imipramine, Isoniazid, MAO inhibitors, Phenothiazines, Promethazine, alcoholic beverages, caffeine, tea/coffee, tobacco and strenuous exercise at least 72 hrs before and during specimen collection.

Patient Preparation

No fasting required

Reporting Time

Sample by Wed / Sat 9 am; Report Fri / Tue

Method

High Performance LiquidChromatograp hy

Category

Urinalysis