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Also known as: 5-Hydroxy Tryptamine; 5-HT
Formal name: Serotonin
Related tests: 5-HIAA; Chromogranin A

At a Glance

Why Get Tested?

To help diagnose a serotonin-secreting carcinoid tumour

When to Get Tested?

When you have symptoms suggestive of a carcinoid tumour such as flushing, diarrhoea and/or wheezing

Sample Required?

A blood sample taken from a vein in your arm

Test Preparation Needed?

No test preparation is needed.