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Serotonin, Serum : 29851
Test CodeSEROTQ or 29851
Alias/See Also
5-Hydroxytryptamine, Serotonin
CPT Codes
84260
Instructions
Patient should avoid food high in indoles: avocado, banana, tomato, plum, walnut, pineapple, and eggplant.
Serum separator tube or plain red.
Serum separator tube or plain red.
Transport Container
Centrifuge the serum separator tube or plain red and aliquot 2 mL serum (Min: 1 mL) into a standard transport tube. Freeze within 2 hours of collection.
Transport Temperature
Frozen.
Specimen Stability
Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 42 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature or refrigerated.
Methodology
High Performance Liquid Chromatography
Setup Schedule
Monday - Saturday
Report Available
3-5 days (From receipt at performing laboratory)
Limitations
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Reference Range
56-244 ng/mL
Clinical Significance
Serotonin concentrations are greatly increased in patients with carcinoid syndrome. Carcinoid tumors are associated with multiple endocrine neoplasia (MEN) types I and II. These tumors are associated with flushing, diarrhea, pain,and other symptoms.
Performing Laboratory
Quest Diagnostics
