Procainamide (743X)

Test Code

PRO

Quest Code

851N

CPT Codes
80192

Includes

Procainamide, N-acetylprocainamide, and Procainamide, Total

Preferred Specimen

1 mL serum collected in a red-top tube (red-top)

Patient Preparation
Collect as a trough just prior to next dose

Minimum Volume

0.2 mL

Other Acceptable Specimens

Plasma collected in: Sodium heparin (green-top) tube • Lithium heparin (green-top) tube • EDTA (lavender-top) tube

Instructions

Do not use gel barrier tubes

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 4 days
Refrigerated: 7 days
Frozen: Not Established

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Serum Separator Tube (SST^®)

Methodology
Immunoassay (IA)

Setup Schedule

Sets up 7 days a week.

Reference Range

See Laboratory Report

Clinical Significance

Procainamide is used to treat a variety of atrial and ventricular arrhythmias. Metabolism of procainamide produces an active metabolite N-Acetylprocainamide (NAPA). The concentration of both procainamide and NAPA levels are monitored to assure adequate therapeutic levels of procainamide are achieved and to avoid toxicity.

Performing Laboratory
Quest Diagnostics Chantilly Nichols Institute
14225 Newbrook Dr.
Chantilly, VA 20151-2228

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.