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Naproxen, Serum/Plasma
Test Code4950
CPT Codes
80299
Preferred Specimen
1 mL serum collected in a red-top tube (no-gel)
Minimum Volume
0.2 mL
Other Acceptable Specimens
Plasma collected in: EDTA (lavender-top) or EDTA (pink-top) tube
Instructions
Promptly centrifuge and separate serum or plasma into a plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 15 days
Refrigerated: 15 days
Frozen: 15 days
Refrigerated: 15 days
Frozen: 15 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum Separator Tube (SST®) • Polymer gel separation tube (PST)
Methodology
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
Setup Schedule
Sets up 2 days a week.
Report Available
Reports in 2 days.
Clinical Significance
Therapeutic Drug Monitoring