5-HT level; 5-hydroxytryptamine level; Serotonin test
The normal range is 101-283 nanograms per milliliter (ng/mL).
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
Higher-than-normal levels may indicate carcinoid syndrome.
A while back, I received a question about someone with diabetes who had blood glucose levels that were bouncing all over, from the 60s to... Read more »