Gas Chromatography-Mass Spectrometry (GC-MS)
Monitor therapeutic level, evaluate for toxicity and/or drug abuse.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
3 - 7 days
Collect blood in a red top tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.
Test sent to Mayo Medical Laboratories.