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I had a 5-hiaa 24 hr. Urine. The result was 2.5, normal is stated on the result from the lab is <=8.0, what does this mean?

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Dr. Terry Woodard
Internal Medicine - Nephrology & Dialysis

In brief: Not carcinoid tumor

5-hiaa is a urine test that reflects a chemical released from an endocrine type cell in a specific tumor originating in the nerve tissue called "carcinoid" tumor, and has many symptoms, including flushing, wheezing, diarrhea and abdominal pain.
It can cause significant heart problems as well. A negative test suggests this tumor is not present.

In brief: Not carcinoid tumor

5-hiaa is a urine test that reflects a chemical released from an endocrine type cell in a specific tumor originating in the nerve tissue called "carcinoid" tumor, and has many symptoms, including flushing, wheezing, diarrhea and abdominal pain.
It can cause significant heart problems as well. A negative test suggests this tumor is not present.
Dr. Terry Woodard
Dr. Terry Woodard
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