85460:LORAZEPAM (ATIVAN) LEVEL

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85460:LORAZEPAM (ATIVAN) LEVEL
Methodology: High Performance Liquid Chromatography (HPLC)
Edit Date: 11/16/2009
Performed: Monday, Thursday
Released: 1-4 days after setup at PeaceHealth Laboratories’ reference lab
CPT Code: 80154-90
Specimen Collection Details
Collection: One 5 mL red top tube. Do not use separator tubes (SST or PST) and gels. Also acceptable: One 4 mL green top tube (heparin), one 4 mL lavender top tube (EDTA), or one 4 mL grey top tube (potassium oxalate/sodium fluoride).
Handling: Centrifuge and separate serum or plasma into a plastic vial.
Stability: 12 hours ambient, 5 days refrigerated, or 2 weeks frozen.
Standard Volume: 2 mL serum or plasma.
Minimum Volume: 1.2 mL serum or plasma.
Transport: Refrigerated.
Rejection Criteria: Use of separator tubes (SST or PST) and gels.

Dose-related Range:
50-240 ng/mL – Based on dosages up to 10 mg/d
Toxic:> 300 ng/mL

PeaceHealth Laboratories