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Drugs of Abuse Confirmation/Quantitation - Propoxyphene & Metabolite, Serum or Plasma
Preferred specimen: 1.0 mL serum, red top tube. Do not collect in gel-barrier tube. Remove serum from cells ASAP or within 2 hours of collection and transfer to a plastic transport tube.
Minimum specimen: 0.5 mL serum or plasma
Notes: Drugs covered: Propoxyphene and metabolite (norpropoxyphene - qualitative only)
Positive cutoff:
Propoxyphene: 10 ng/mL
Norpropoxyphene: 10 ng/mL

For medical purposes only; not valid for forensic use.
Acceptable specimen: 1.0 mL plasma, gray (sodium fluoride/potassium oxalate), green (sodium heparin), or lavender (EDTA) top tube. Remove plasma from cells ASAP or within 2 hours of collection and transfer to a plastic transport tube.
Unacceptable specimen: Separator tubes or gels. Plasma or whole blood collected in light blue (sodium citrate) top tube.
Transport temp: Refrigerated
Methodology: Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry
Unit Code: 812930
Ref Range: By report
Reported: 2-9 days

 

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