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Alias Names: Norfluoxetine
Methodology: High Performance Liquid Chromatography (HPLC)
Edit Date: 6/11/2010
Performed: Monday, Wednesday, Friday
Released: 1-4 days after setup at PeaceHealth Laboratories’ reference lab.
CPT Code: 80299-90 x2
Specimen Collection Details
Collection: One 5 mL red top tube. Do not use serum or plasma separator tube, SST or PST. Also acceptable: One 4 mL green top tube (sodium heparin), 4 mL lavender top tube (EDTA), or 4 mL grey top tube (potassium oxalate/sodium fluoride).
Handling: Allow to clot, centrifuge and separate serum or plasma from cells into a plastic vial. Refrigerate.
Stability: 12 hours ambient, 5 days refrigerated, or 1 month frozen.
Standard Volume: 2 mL serum or plasma.
Minimum Volume: 0.8 mL serum or plasma.
Transport: Refrigerated.
Comments: Fluoxetine metabolizes into norfluoxetine. Both levels are provided on the report. Dose related ranges for fluoxeline/norfluoxetine are based on a 20-60 mg dose/day.
Rejection Criteria: Use of SST or PST.
This test may require insurance company prior authorization before ordering.
Please check the prior authorization list
Failure to gain preauthorization may result in denial of coverage.

Dose-related range:
Fluoxetine 50-480 ng/mL
NorFluoxetine 50-450 ng/mL

PeaceHealth Laboratories