1 - 4 days
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Liquid Chromatography (LC-MS/MS)
Therapeutic drug monitoring.
0.5 - 2.0 mcg/mL
Collect a trough specimen in a red top tube after patient has been receiving Propafenone for at least 3 days; do not use SST tube. Centrifuge, aliquot serum into a plastic vial within 2 hours of collection and refrigerate.