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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)
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
