Back to Test Catalogue

5-Hydroxyindole Acetic Acid (5-HIAA), 24 hr Urine

Test ID: 5HIAA

Test

Aliases/Synonyms

5HIAA

Method

LC-MS/MS

Report Includes

Creatinine; 5-Hydroxyindole Acetic Acid (µmol/L); 5-Hydroxyindole Acetic Acid (µmol/d)

Specimens

Urine (24 hr)

Test Location

ON, CA

Test Version

30-Sep-2019

Specimen

Specimens

Urine (24 hr)

Sample Volume

10 mL

Patient Preparation

The patient must have a diet free of avocadoes, bananas, tomatoes, plums, eggplant, hickory nuts, pineapple and mollusks for 2 days prior to and during the collection. Patient should be off all drugs for 3 days if possible.

Collection & Handling

Collection Instructions

Collect urine in container with 25 mL 6 mol/L (6N) HCl acid.

Handling Information

The final pH must be maintained from 2 - 4.

Additional Information

Provide 24 hour volume and date of collection.

Test Version

30-Sep-2019

Performance / Interpretation

Method

LC-MS/MS

Turnaround Time

10 days

Results

Name Units Reference Range Conversion Factor
Creatinine mmol/d
  • Male: 9.0 - 17.0
  • Female: 7.0 - 15.0
5-Hydroxyindole Acetic Acid µmol/L
  • Not Available
5-Hydroxyindole Acetic Acid µmol/d
  • 0 - 50

Test Location

ON, CA

Test Version

30-Sep-2019

Interface / Setup

HL7 Interface Codes

Order Code Result Codes Units
5HIAA 7601Volume L
7602Creatinine/D 24HIA mmol/d
7637Creatinine/L mmol/L
280125HIAA 24H µmol/d
280105HIAA per litre µmol/L

Test Version

30-Sep-2019