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5-Hydroxyindoleacetic Acid (5-HIAA) Urine


  • 5-Hydroxyindoleacetic acid (5-HIAA), also known as serotonin metabolite, is the major urinary metabolite of serotonin.

  • Normal range: 0.0–15.0 mg/day (24-hour urine); 0.0–14.0 mg/g creatin...

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