Match each of the following drugs with the appropriate antiarrhythmic class.
-Class IV agent

Question

Quizplus · Accepted Answer

Verapamil is a Class IV antiarrhythmic that works by blocking calcium channels, which slows down electrical conduction in the heart and reduces arrhythmias.

Other Class IV agents include diltiazem and felodipine.

Propranolol and metoprolol are Class II agents that work by blocking beta receptors in the heart.

Disopyramide and propafenone are Class I agents that work by blocking sodium channels in the heart.

Amiodarone is a Class III agent that works by blocking potassium channels in the heart.

Lidocaine is also a Class I agent, but it is primarily used for ventricular arrhythmias and not atrial arrhythmias.

Match Each of the Following Drugs with the Appropriate Antiarrhythmic