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Dextro/Levo Methorphan, Serum/Plasma
Test Code37448
CPT Codes
80299
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.3 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-capped vial using approved guidelines
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 29 days
Frozen: 24 months
Refrigerated: 29 days
Frozen: 24 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Serum separator tube (SST) • PST
Methodology
Gas Chromatography (GC)
Setup Schedule
A.M.
Clinical Significance
Therapeutic drug monitoring.
