HIAA Quantitative
This test measures the amount of 5-HIAA in your urine. 5-HIAA is a substance made by your body after it breaks down serotonin. Measuring 5-HIAA helps to see if your body is making too much serotonin, which can sometimes point to a type of tumor.
When is it needed?
How to prepare
You will need to collect your urine for 24 hours. Your doctor will tell you if you need to avoid certain foods or medicines before the test.
More about this test
This test measures the amount of 5-HIAA in your urine. 5-HIAA is a substance made by your body after it breaks down serotonin. Measuring 5-HIAA helps to see if your body is making too much serotonin, which can sometimes point to a type of tumor.
Medically reviewed by: Locatemycenter editorial team. Informational only; not medical advice. Always consult a licensed physician for diagnosis or treatment.
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