Gas Chromatography/Flame Ionization Detection (GC-FID)
Therapeutic drug monitoring.
10 - 40 mcg/mL. Critical Value: 55 mcg/mL.
5 - 7 days
Collect blood in red or green top tube; do not use SST or PST tube. Centrifuge, aliquot serum or plasma into a plastic vial and refrigerate or freeze.
Test sent to Mayo Medical Laboratories; performed by MedTox Laboratories.