Laboratory Test Information Guide

Details for 5-Hydroxyindole Acetic Acid, Urine

Test Name: 5-Hydroxyindole Acetic Acid, Urine
Alternate Name(s): 5-HIAA
Laboratory: Toxicology/Special Chemistry
Specimen Type: 24-hour urine
Collection Information: 24-Hour Urine Diet and Medication Restrictions: 5-HIAA, Catecholamines, Metanephrines, VMA/HVA

Collection of 24-Hour Urine Sample

Collect urine over a 24-hour period in a container with 30 mL of 6 N HCl for adult samples or 15 mL of 6 N HCl for pediatric samples. The final pH must be maintained at 2-4.
Requisition: GENERAL LABORATORY REQUISITION
Test Schedule: Monday – Friday
0800-1600
Turnaround time from when specimen
is received in testing laboratory:
 
Routine
5 days
Stat
 
 
Reference Range: ≤ 43.0 µmol/day
Effective Date: 2017-07-04
Revised Date: 2018-05-22
Critical Value:  
Interpretive Comments:  
Special Processing: Transfer an aliquot of the measured urine to a 5-mL Greiner tube.
Comments:  
Method of Analysis: LC-MS/MS
Critical Information Required:  
Storage & Shipment: Keep samples refrigerated.
System Codes: 
Cerner
5HIAAU24
 
Referred To:  

Questions? Comments? Contact Laura Gopaul