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Therapeutic drug monitoring
10.0 - 20.0 ug/mL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Collect specimen in red top tube; do not use SST tube. Centrifuge, aliquot serum or plasma into a plastic vial and refrigerate up to 24 hours or freeze for longer storage. Collect Peak specimen 30 minutes after the end of an I.V. infusion (one hour following I.M. or oral administration) or Trough specimen immediately before next dose is given.