Specimen Collection Requirements
Abstain from medications for 72 hours prior to collection.
Serum, one gold (SST) top tube
Spin and separate within one hour of collection. Transfer 1 mL serum to an aliquot tube. CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Specimens other than serum, non-frozen specimens
AFTER SEPARATION FROM CELLS: Ambient: Unacceptable; Refrigerated: 24 hours; Frozen: 1 month
In general, EDTA whole blood, as compared to serum, preserved with ascorbic acid will give values most representative of blood concentrations. Most, 95%, of blood serotonin is found in platelets.
Quantitative High Performance Liquid Chromatography
Thursday, January 5, 2017 03:41:53 AM