N-ACETYL PROCAINAMIDE LEVEL
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Therapeutic drug monitoring.
PROCAINAMIDE: Therapeutic: 4.0 - 10.0 mcg/mL; Critical value: >12.0 mcg/mL.
N-ACETYLPROCAINAMIDE: Therapeutic: 12.0 - 18.0 mcg/mL; Critical value: > or =40.0 mcg/mL.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Collect specimen in an SST (preferred) or red top tube. Centrifuge and aliquot serum into a plastic vial within 2 hours of collection. Refrigerate. Draw trough level immediately prior to next oral dose or draw 6-12 hours after start of IV maintenance infusion.