Also known as: 5-HIAA, HIAA, Serotonin metabolite

Specimen requirements

Sample type: Urine (24 hour acetic acid bottle); Urine (Universal)

Collection requirements: Specimen must be protected from light, processed and frozen on day of receipt. Random urine specimen must be protected from light.

Serotonin-rich foods, such as:

  • avocados
  • bananas
  • plantains
  • pineapples
  • plums
  • walnuts
  • tomatoes
  • kiwi fruit
  • health food supplements containing 5-hydroxytrytophan

can increase 5-HIAA, and should be avoided for three days prior to and during urine collection.

A variety of medications can affect 5-HIAA excretion - for more information please contact us.

Cost

Price on application

Turnaround time

Please see Turnaround times

Analytical method

Mass Spectrometry

Analysis undertaken at these site(s)

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Reference intervals

Female

All ages: 10 - 40 µmol/24 hours

<5 µmol / mmol creatinine

Male

All ages: 10 - 40 µmol/24 hours

<5 µmol / mmol creatinine