Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
150 - 300 ng/mL
3 - 7 days
Collect in red or green top tube; do not use SST or PST tube. Centrifuge, aliquot serum or plasma into a plastic vial and refrigerate. Serum/plasma must be separated from the cells within 2 hours of collection
DO NOT USE SST OR PST TUBE
Test sent to Mayo Medical Laboratories; performed by MedTox Laboratories.