Oxazepam, Serum or Plasma
Therapeutic drug management
Serum or plasma
Red-top tube or green-top (heparin) tube. Gel-barrier tubes are not recommended
Trough levels are most reproducible
Serum or plasma should be separated from cells within two hours of venipuncture. Submit serum or plasma in a plastic transport tube.
Submission/transport (<3 days): Room temperature.
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Tulsa, Oklahoma 74136