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

Synonym(s):

​HIAA,5-HIAA

Lab Section Category

Description

Indications

Specimen Required

​24 hr urine in 15 mL 50% HCl

Minimum aliquot volume : 30 mL urine

Storage and Transport

Method

​High Performance Liquid Chromatography

Test Results

Reference Interval / Value

​≥20 yrs: 3.5 - 41.0 mmol/day

Turnaround Time

​Mean = 7 days, Range: 3 – 11 days

Day(s) Test Set up

​Monday - Friday

Remarks

 

 

Instructions before sampling:


Patients should abstain from the following at least 3 days prior to and during urine specimen collection:

 - intake of food like chocolate, walnuts, avocados, bananas, nuts, plums, pineapples, tomatoes, eggplant and vegetable food and

 - where medically possible, drugs such as reserpine, phenacetin, acetanilid, nicotine, chlorphenylalanine, isoniazid, L-Dopa, methyldopa and MAO inhibitors.

 

 

Total 24-hour urine volume must be clearly indicated.

Change History Notes

Others

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