1 - 3 days
Looking to order a test?
We’ve provided helpful links to make ordering easy.Find a Requisition
All specimens should be accompanied by a requisition.Submitting Specimens
Learn about how to properly label and where to ship specimens.Order Kits and Supplies
MLabs provides all the supplies necessary for the collection of specimens.Test FAQ
Visit our provider FAQ and learn about common questions to ordering tests.
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. 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.
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.