5-hiaa: At a Glance

5-HIAA

Also known as: 5-hydroxyindoleacetic acid, HIAA, Serotonin metabolite
Formal name: 5-hydroxyindoleacetic acid
Related tests: Serotonin, Chromogranin A

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	At A Glance
	Why get tested? To help diagnose and monitor treatment for a serotonin-secreting carcinoid tumour When to get tested? When you have symptoms suggestive of a carcinoid tumours such as flushing, diarrhoea, and/or wheezing and at intervals following treatment Sample required? A 24-hour urine sample; rarely a random urine sample

This page was last modified on January 12, 2007

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