Which drug is the primary agent for paroxysmal supraventricular tachycardia (PSVT)?
1. Flecainide (Tambocor)
2. Adenosine (Adenocard)
3. Lidocaine (Xylocaine)
4. Procainamide (Pronestyl)
2
Rationale 1: Flecainide is indicated for ventricular dysrhythmias.
Rationale 2: Adenosine is the drug of choice for PSVT.
Rationale 3: Lidocaine is indicated for ventricular dysrhythmias.
Rationale 4: Procainamide may be used for supraventricular dysrhythmias but is not the primary drug for PSVT.
Global Rationale: Adenosine is the drug of choice for PSVT. Procainamide may be used for supraventricular dysrhythmias but is not the primary drug for PSVT. Lidocaine and flecainide are indicated for ventricular dysrhythmias.
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