CRAT Antiarrhythmic Medications and Clinical Interventions

Question 1

Which antiarrhythmic drug is classified as a Class III agent and is commonly used for atrial fibrillation and ventricular tachycardia?

Accepted Answer

Amiodarone

Answer

Lidocaine

Answer

Metoprolol

Answer

Adenosine

Question 2

Adenosine is the drug of choice for terminating which arrhythmia?

Accepted Answer

Paroxysmal supraventricular tachycardia (PSVT)

Answer

Atrial fibrillation

Answer

Ventricular fibrillation

Answer

Torsades de Pointes

Question 3

Which medication should be avoided in patients with Wolff-Parkinson-White (WPW) syndrome presenting with atrial fibrillation?

Accepted Answer

AV nodal blocking agents (e.g., adenosine, verapamil)

Answer

Amiodarone

Answer

Procainamide

Answer

Magnesium sulfate

Question 4

Magnesium sulfate is the treatment of choice for:

Accepted Answer

Torsades de Pointes

Answer

First-degree AV block

Answer

Sinus bradycardia

Answer

Junctional escape rhythm

Question 5

Atropine is administered in cardiac emergencies primarily to treat:

Accepted Answer

Symptomatic bradycardia

Answer

Ventricular tachycardia

Answer

Atrial flutter

Answer

Premature ventricular contractions

Question 6

Which Class I antiarrhythmic is commonly used for ventricular arrhythmias, especially in the acute setting of myocardial infarction?

Accepted Answer

Lidocaine

Answer

Verapamil

Answer

Digoxin

Answer

Diltiazem