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SEROT / 120089L
SEROTONIN, WHOLE BLOOD

Test Code SEROT / 120089L 
Test SEROTONIN, WHOLE BLOOD 
Methodology High-Pressure Liquid Chromatography (HPLC) with Electrochemical (EC) Detection 
Description Useful in the diagnosis of carcinoid syndrome 
Specimen Sample collection practices that prevent blood clotting and oxidation of serotonin are imperative. Collect three tubes (4 mL each) whole blood. Invert tubes at least ten times to ensure thorough distribution of EDTA. Transfer 10 mL whole blood to transport tube containing 75 mg ascorbic acid. Thoroughly mix by inverting whole blood/ascorbic acid mixture another ten times. Freeze transport tube IMMEDIATELY and send entire collection to the laboratory. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested. 
Reference Values Pediatric:
0 - 18 years: 113 - 431 ng/mL
Adult:
> 18 years: 11 - 204 ng/mL 
Analytic Time 2 Days 
Day(s) Test Set Up Monday through Saturday 
CPT Code(s) 84260