A 5-HIAA test measures the levels of 5-Hydroxyindoleacetic Acid (5-HIAA) in urine. It is a metabolite of serotonin and is used to diagnose and monitor certain conditions, such as carcinoid tumors and serotonin syndrome.
Why is the 5-HIAA test important?
The 5-HIAA test is crucial for the diagnosis and management of carcinoid tumors, which can produce excess serotonin. High 5-HIAA levels indicate the presence of carcinoid tumors, guiding treatment decisions.
How is the 5-HIAA test performed?
To conduct the 5-HIAA test, a urine sample is collected over a 24-hour period and then sent to a laboratory for analysis. It's essential to follow specific dietary and medication guidelines before the test.
What are the causes of elevated 5-HIAA levels?
Elevated 5-HIAA levels can be caused by carcinoid tumors, serotonin syndrome, and certain medications. Identifying the underlying cause is vital for appropriate treatment and management.
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