Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Combined concentrations in patients receiving recommended daily dose is 10-120 ng/mL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
6 - 9 days
Collect in a green-top (sodium heparin) or red top tube, SST and plasma gel tubes are not acceptable. Spin and aliquot into a screw capped plastic tube. Send to Specimen Processing refrigerated
Test sent to Mayo Clinic Labs, performed by MedTox Laboratories