DULOXETINE, SERUM

Specimen Required
Draw blood in a red-top tube. Centrifuge, remove serum from cells and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial. Serum requires light protection at room temperature.

Alternate Specimen
Plasma: Lavender EDTA. Plasma requires light protection at room temperature.

Rejection Criteria
Polymer gel separation tube (SST or PST).

Methodology
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)

Stability
Room temperature: 30 days; Refrigerated: 30 days; Frozen: 12 months

Reference Range
Duloxetine Reporting Limit: 3 ng/mL

Performed
Varies

Turnaround Time10 days
Test CodeDULOX
CPT-4 Code (s)
80332 (G0480)
LOINC Codes
Duloxetine, Serum   46227-5  

Warde
Medical
Laboratory