Table of Contents
- Overview
- Results
- Risks
- Prevention
HIAA; 5-hydroxyindole acetic acid; Serotonin metabolite
Normal Values
The normal range is 3 to 15 milligrams per 24 hours (mg/24 hr).
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What abnormal results mean
Abnormal results may be due to:
- Tumors of the endocrine system or the digestive tract
Mastocytosis
This list is not all-inclusive.
Previous Section
Review Date: 09/27/2010
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of
General Medicine, Department of Medicine, University of Washington
School of Medicine; Yi-Bin Chen, MD, Leukemia/Bone Marrow
Transplant Program, Massachusetts General Hospital. Also reviewed
by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)
