5-Hydroxyindoleacetic acid (HIAA)

Test investigation

5-Hydroxyindoleacetic acid (HIAA)

Laboratory offering test

NNUH

Units

µmol/24h

Comments precautions

Acid bottle required

Sample type

24-Hour urine collection bottle (acid preservative)

Turnaround times (TAT) Urgent/Routine/GP or OPD

Batched; at least once weekly

Reference intervals

5 – 63 umol/24h