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Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Determining the level of antimicrobial in serum from treated patients.
Peak: >25 mcg/mL, Toxic: >100 mcg/mL.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Collect specimen in a red top tube; do not use SST tube. Centrifuge, aliquot serum into a plastic vial within 2 hours of collection and refrigerate (preferred) or freeze. Serum for a peak level should be drawn 30 minutes after completion of infusion of an intravenous dose or 1 - 2 hours after an oral dose; trough specimens should be drawn immediately prior to next scheduled dose.