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HIAA Quantitative

The brain controls the production of serotonin, which is an important hormone produced in the body. It helps in the transmission of nerve impulses and also affects the moods of a person. It constricts the blood vessels and is involved in the sleep-wake cycle. The serotonin hormone breaks down in the liver and produces metabolites, such as 5-hydroxyindoleacetic acid – ; 5-HIAA, which is excreted in the urine. The 5-HIAA urine test is used to measure 5-HIAA levels in the urine, thus giving an estimate of the amount of serotonin being produced in the body.

Why is the test performed?

A 5-HIAA (5-hydroxyindoleacetic acid) test may be ordered to help diagnose and monitor carcinoid tumours.

When is the test ordered?

The test may be ordered if an individual shows the signs and symptoms indicative of a carcinoid tumour. Such symptoms include:

  • Nausea
  • Vomiting
  • Appearance of a deep red colour on the face and neck
  • Diarrhoea
  • Coughing
  • Wheezing
  • Increased heart rate
  • Breathing difficulties.

The test may also be ordered for monitoring the progress of treatment in people undergoing treatment for a carcinoid tumour.

How is the sample collected?

A urine sample is collected in a big sterile container over a period of 24 hours.

How to prepare for the test?

It is better to inform the doctor about all the medicines and supplements that the patient is taking, as they may affect the test result. Some fruits like kiwi, avocados, tomatoes, bananas, pineapples, plums and walnuts may also affect the test results and should be avoided for at least 3 days prior to taking the test.

Patient Testimonials

“Excellence of Apollo Diagnostics is already a recognized fact across India. Adding more strength to their reputation is their caring nature and supportive attitude. I’ll always prefer to take their services than selecting mediocre quality making any compromise with my health.”

Mr. Shahul Hameed, Chennai

Mrs. Turni, Kolkata

“The way Apollo Diagnostics kept me at ease during the sample collection process, the way they supported me to be at my convenience and confidence is really something I’ll always remember. They were also flawless in maintaining the hygiene. Hats off to them!”

Mr. Laxmi Kantham, Hyderabad

“Awesome is probably the one word to express my views about Apollo Diagnostics. Efficiency, punctuality, compassion, sincerity…I’ll give high marks to them in all of these. Great going, Apollo!”

Shivaraj Kadam, Pune

“Thanks for the seamless service. Based on my experience I can assure that, be it quality or punctuality, Apollo Diagnostics is one name to trust and depend on.”

Mr. Thomas, Mysuru

“Excellent sense of timing! The technician arrived right on time. He was really well-trained, in terms of his skill and manner, as well. Apollo Diagnostics is doing a great job.”

Subbalakshmi, Vizag

“Appreciate the quality of service that I’ve received from Apollo Diagnostics. Their competence, caring nature, sincerity, valuing customer’s time – all these together have shaped them as the most trusted diagnostic service provider in the country.
Keep up the good work!

Mrs. Pravati Dash, Bengaluru

“My mother needed a blood test, but was unable to walk due to pain in her leg. A Phlebotomist from Apollo Diagnostics came home and collected the sample. I was informed, via SMS, that the report could be collected from any of the 3 centres in Dibrugarh, downloaded online or even delivered home for a nominal fee. Although the rates were reasonable, my mother also received a senior citizens discount too! This saved my time, money & energy. My aachhe din really seemed to have arrived! Thank you Apollo Diagnostics and hats off for displaying true professionalism.”

Mr. Alokk Kar Dowerah, Dibrugarh

“Whenever I need to have a blood sample collected from home, I ask for Vasu. He is punctual, courteous and so skilled I hardly feel any pain when he draws the sample. Plus, I truly appreciate how quickly the reports are delivered. Thanks Apollo!”

Mr. Sukumar, Film director, Sriram Nagar, Hyderabad

“Their accurate understanding of customer’s needs is one thing that set them apart and ahead of all others. As a result, it becomes easier for them to deliver the right service, that with their matchless efficiency and care to ensure less pain and easily accomplished sample collection. Apollo Diagnostics is simply doing an amazing job!”

Soundarya Abhirami, Hyderabad

“The overall service standard of Apollo Diagnostics is admirably high. The technician was punctual and well-behaved, and has the genuine skill to collect the test sample without troubling the customer. These are probably some of the major reasons for them to be the best in India.”

Mrs. Lakshmi, Chennai

“The most crucial factor with Apollo Diagnostics is that they always train their Phlebotomists so well that the team consistently remains efficient and punctual and we receive a premium quality diagnostic service. Good job. Keep it up.”

Mr. Amit Kumar Patil, Bengaluru