Procainamide & N-Acetylprocainamide (NAPA)

Abbrev Code:XMISC   
Order Code:LAB4909Order Name:Procainamide and NAPA
Synonyms:Pronestyl; N-Acetylprocainamide (NAPA); Proscan-Sr
CPT Codes: 80192 x1
Test Includes:Procainamide and N-acetyl procainamide (NAPA)
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 1-3 days.

Collection Instructions

Optimal Volume:2 mL
Minimum\Peds Volume:0.8 mL
Container:Red (no gel)
Alternate Containers: Green (lithium heparin, no gel), Green (sodium heparin, no gel)
Collection Instructions:Trough level is preferred; collect immediately before dose, but no sooner than 2 hours before. Optimal collection time for peak level is 1-2 hours after oral dose. Optimal collection time for I.V. dose: immediately after loading dose and 2 hours, 6-12 hours, and 24 hours after maintenance infusion. Optimal sampling for oral dose: three steady-state samples over one oral dosing interval (i.e., immediately prior to dose and two more samples at equally spaced intervals).
Causes for Rejection:Gel-barrier tube; severely hemolyzed, lipemic or icteric specimen.

Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1 mL, 0.3 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:2 days at room temperature; 14 days refrigerated; 6 months frozen.
Test Performed at or Referral Lab Lab Sendouts  (LabCorp via MedTox)
Referral Lab number:990123


Reference Range:
Procainamide 4.0-10.0      
NAPA 6.0-20.0
Sum of Procainamide and NAPA 10.0-30.0
Use:Monitor therapeutic dosing and evaluate toxicity. Half-life is 2-4 h (procainamide); 8 h (NAPA).

Click HERE to Report test errors or omissions.
*If no email program is associated with this computer, please contact:
[email protected] for TestID: 1465"