Serotonin, Urine Test

Serotonin, Urine Test

Category
Cancer
Sample
Urine sample — preferably first-morning, mid-stream, in a sterile container
Reports () Terms & Conditions Report time varies with time of sample collection.
In 15 days
Fasting
No Fasting
Age
5+ Years

What Is This Test?

Measures serotonin in a urine sample. Serotonin is a chemical messenger produced by some neuroendocrine cells.

Why this test is performed?

Helps evaluate carcinoid (neuroendocrine) tumours. A urine test shows how much is being passed by the kidneys.

Who should take this test?

People being evaluated or treated for cancer, or as advised by an oncologist. Not a stand-alone screening test.

Test Preparation

No fasting needed. Give a first-morning, mid-stream urine sample in a sterile container.

Medical disclaimer · for information only, not medical advice

This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.

In a medical emergency, call 112, or 108 for an ambulance where that service operates, or go to your nearest emergency department. If you are in mental health distress, Tele-MANAS is free and available 24×7 on 14416.

Read our Editorial Policy and Medical Review Process.

Frequently asked questions

No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.

Urine sample — preferably first-morning, mid-stream, in a sterile container.

Usually within 13–14 days after the sample reaches the lab. You will receive the report online.

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