Quinidine, serum or plasma

Alphabetical Test listing

Quinidine, serum or plasma-994

  
Quinidine, serum or plasma
  
994
  
LAB994
  
MSO
  
Cardioquin
Duraquin
Quinaglute
Quinidex
Quinora
  
Serum
  

Red

  
1.0 mL
  
0.3 mL
  
Heparin plasma - Dk green heparin
  

Peak

Quinidine sulfate - 1 hour after dose Quinidine gluconate - 4 hours after dose

Trough

Immediately prior to next dose

After change in dose - one to two days

  

Spin and separate to a LabCorp 12mL plastic transport tube

Label transport tube as serum or heparin plasma

  

LabCorp 12mL plastic transport tube

  

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

  

Gel-barrier tube; severe hemolysis; lipemia; icteric specimen

  
LabCorp Burlington (007831): R-NX
  
Mo - Fr, Su
  
1 - 3 days
  

Immunoassay

  

Therapeutic: 2.0 − 5.0 μg/mL

 

  

This Class 1A drug is useful in both supraventricular and ventricular arrhythmias. It major uses are to maintain sinus rhythm after conversion of atrial flutter or fibrillation, to prevent ventricular tachycardia, and for long-term prophylaxis in patients with AV nodal reentrant tachycardia and automatic atrial tachycardia. Quinidine also has been used to prevent symptomatic premature supraventricular and ventricular complexes. Because it slows conduction and prolongs the refractory period of the accessory pathway and suppresses automaticity of ectopic pacemakers, quinidine may prevent recurrences of paroxysmal supraventricular tachycardia caused by reentry over a concealed pathway or AV reciprocating tachycardia associated with the Wolff-Parkinson-White syndrome. It also may slow the ventricular response to atrial flutter or fibrillation in the preëxcitation syndrome. Quinidine is often preferred to procainamide for long-term therapy because elevated antinuclear antibody titers and drug-induced lupus are common during prolonged therapy with procainamide.

  
80194
  
Result 6694-4
  
05/23/2019
  
05/23/2019