Test Name: 5 Hydroxy Indole Acetic Acid, Urine 
Alternate Test Names 5HIAA; Urine 5 Hydroxy Indole Acetic Acid 
PLS Test Code UHIA  Laboratory Biochemistry 
Specimen 24 hour urine  Analysis Performed On Urine 
Container Urine container Acid 24 hour  Container colour N/A 
Multiple specimens  
Required Volume Adult (mL) 20  Req Vol Paediatric (mL) 10 
Reference Ranges < 50 umol/d 
Turnaround Time Routine 1 Week  Turnaround Time Urgent  
Turnaround Other  
Days test is performed Weekly  Transport Room temperature 
Special Requirements None 
Patient Preparation For 1 day prior to and during collection of urine, the following foods should not be eaten: avocados, bananas, egg-plants, plums, pineapples, tomatoes, the juice of any of these fruits and walnuts. 
Collection Instructions PATIENT INSTRUCTIONS: Label 24 hour urine bottle with your full name and date and time of commencement. Collect the 24 hour urine specimen in the following manner: a) Decide a time to start the test (eg. 0800 hours) b) Empty the bladder at this time and discard this urine. c) From now on all urine passed in the next 24 hours may be collected in a container, but must be transferred to the large bottle. D) At 24 hours from commencment time (eg. 0800 hours the next morning) the bladder is emptied and this urine is also placed in the bottle. Deliver the specimen to the collection centre on the day the test is completed. Store specimen in a cool dark place during collection. 
Clinical Information  
Sent to Reference Laboratory No 
Ref Laboratory Name  
Estimated Patient Fee N/A 
Last Updated 07-Mar-2007 (Version: 1.01)