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Venlafaxine and Metabolite, Serum/Plasma
Test Code16325X
CPT Codes
80299
Includes
Venlafaxine and O-Desmethylvenlafaxine
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in a sodium heparin (green-top), EDTA (lavender-top), EDTA (royal blue-top), or sodium heparin (royal blue-top) tube
Instructions
Promptly centrifuge and separate serum or plasma into a plastic screw-capped vial using approved guidelines.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum Separator Tube (SST) • PST
Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Setup Schedule
P.M. Sets up 2 days a week.
