5 - 7 days
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Gas Chromatography/Flame Ionization Detection (GC-FID)
Therapeutic drug monitoring.
5 - 20 mcg/mL. Critical Value: 35 mcg/mL.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Collect blood in red or green top tube; do not use SST tube.
Collect blood in red or green top tube; do not use SST tube. Centrifuge, aliquot serum or plasma into a plastic vial and refrigerate or freeze.