Lab test · Biochemistry

5-HIAA (Hydroxy Indole Acetic Acid)-Random Urine

The 5-HIAA Random Urine Test measures the level of 5-HIAA, a breakdown product of serotonin, in urine.
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ReportWithin 24 hrs
SampleBlood
CollectionHome or centre
FastingNot needed
How it works
1
Book in a minute
Add to cart, pick a date and time slot, pay online or at collection.
2
Sample collected at home or centre
A trained phlebotomist arrives in your slot with sealed, single-use kits.
3
Report on WhatsApp
Within 24 hours on WhatsApp and under My Orders.
Preparation
No special preparation needed unless your doctor advises otherwise.
About this test
The 5-HIAA Random Urine Test measures the level of 5-HIAA, a breakdown product of serotonin, in urine. It helps in the diagnosis and monitoring of Carcinoid Tumors.
5-HIAA (HYDROXY INDOLE ACETIC ACID)-RANDOM URINE The 5-HIAA (5-Hydroxyindoleacetic acid) Random Urine test measures the primary metabolite of serotonin in the urine to diagnose carcinoid tumors, which cause excess serotonin production (carcinoid syndrome).

The 5-HIAA Random Urine Test is performed to:

  • Help diagnose Carcinoid Tumors

  • Measure serotonin breakdown in the body

  • Monitor treatment effectiveness

  • Detect recurrence of carcinoid tumors

  • Investigate symptoms like flushing and diarrhea

5-HIAA (HYDROXY INDOLE ACETIC ACID)-RANDOM URINE Test Purpose:

The 5-HIAA (Hydroxy Indole Acetic Acid)-Random Urine Test is performed to measure the level of 5-HIAA, a breakdown product of serotonin, in a random urine sample. Primarily, the test is used to help diagnose and monitor carcinoid tumors, particularly those that produce excess serotonin. Additionally, it assists healthcare providers in investigating symptoms such as flushing, persistent diarrhea, wheezing, and abdominal pain that may be associated with carcinoid syndrome. Furthermore, the test may be used to monitor treatment effectiveness and detect disease recurrence in individuals diagnosed with neuroendocrine tumors. Moreover, the results are interpreted alongside imaging studies, blood tests, and clinical findings to provide a comprehensive evaluation.


5-HIAA (HYDROXY INDOLE ACETIC ACID)-RANDOM URINE Test is Recommended for Individuals:

  • Individuals with suspected carcinoid tumors.
  • People experiencing persistent flushing of the face or neck.
  • Individuals with chronic unexplained diarrhea.
  • Patients with wheezing or asthma-like symptoms without an obvious cause.
  • Individuals with suspected carcinoid syndrome.
  • Patients undergoing treatment for neuroendocrine tumors.
  • People with unexplained abdominal pain or symptoms suggestive of excess serotonin production.
  • Anyone advised by an oncologist or healthcare provider to evaluate serotonin metabolism.

FAQs

1. What is the 5-HIAA (Hydroxy Indole Acetic Acid)-Random Urine Test used for?
The test measures the level of 5-HIAA, a serotonin breakdown product, in urine. Additionally, it helps diagnose and monitor carcinoid tumors and carcinoid syndrome.

2. Do I need to prepare before the 5-HIAA Random Urine Test?
Yes. Certain foods and medications may affect the results. Therefore, your healthcare provider may advise you to avoid foods such as bananas, tomatoes, avocados, pineapples, walnuts, and certain medicines for a specified period before the test.

3. What does a high 5-HIAA level indicate?
A high 5-HIAA level may indicate carcinoid tumors or carcinoid syndrome caused by excess serotonin production. However, the results should always be interpreted together with your symptoms, imaging studies, and other laboratory tests by a healthcare professional.

 
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Questions people ask
How soon will I get my report?
Your report is delivered within 24 hours of sample collection — on WhatsApp and under My Orders.
Is home sample collection available?
Yes. A trained phlebotomist visits your home with sealed, single-use kits. Home collection is free.
Do I need to fast or prepare?
No fasting is required for this test unless your doctor advises otherwise.
How do I pay?
Pay online (UPI / cards) or pay at collection or at the centre. The price you see is what you pay — it includes the report, with no hidden charges.
Is the lab accredited?
Yes. Prima Diagnostics runs NABL-certified labs with strict quality control across 7 centres in Bengaluru.