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Methodology: Gas Chromatography (GC)
Edit Date: 6/11/2010
Performed: Monday, Wednesday, Saturday
Released: 5-6 days after setup at PeaceHealth Laboratories’ reference lab.
CPT Code: 82491-90
Specimen Collection Details
Collection: One 5 mL red top tube. Also acceptable: One 4 mL grey top tube (potassium oxalate/sodium fluoride) or 4 mL lavender top tube (EDTA). Do not use serum separator tubes (SST) or plasma separator tube (PST).
Handling: Allow to clot, centrifuge and separate serum or plasma from cells and pour into a plastic vial. Freeze.
Stability: 48 hours refrigerated or 14 days frozen. Unstable ambient.
Standard Volume: 3 mL serum or plasma.
Minimum Volume: 1.2 mL serum or plasma.
Transport: Frozen on dry ice.
Comments: Therapeutic drug monitoring.
Rejection Criteria: Use of SST or PST; ambient specimen.

PeaceHealth Laboratories