SEROTONIN, SERUM (5-HYDROXYTRYPTAMINE)

Test Documentation
Specimen Required
Patient Preparation: Patient should avoid avocados, bananas, eggplant, pineapples, plums, tomatoes, or walnuts for a 48-hour period prior to start of collection. Draw blood in a red-top tube. Centrifuge within 2 hours of collection, remove serum from cells and send 2.0 mL serum (1.0 mL minimum) frozen below -20°C in a screw-capped plastic vial.

Alternate Specimen
Serum: SST

Methodology
High Performance Liquid Chromatography, Fluorescence Detection

Stability
Room Temperature: Unacceptable; Refrigerated: Unacceptable; Frozen: 42 days

Reference Range
56-244 ng/mL

Performed
Monday, Wednesday, Friday

Turnaround Time5-7 days
Test CodeSEROS
CPT-4 Code (s)
84260
LOINC Codes
27057-9

Warde
Medical
Laboratory