Question:
A 65-year-old patient with history of atrial flutter is being considered for long-term prophylaxis to prevent recurrence. The cardiologist decides to start a calcium channel blocker for rate control and prevention of rapid ventricular response. Which calcium channel blocker is most appropriate?
A 65-year-old patient with history of atrial flutter is being considered for long-term prophylaxis to prevent recurrence. The cardiologist decides to start a calcium channel blocker for rate control and prevention of rapid ventricular response. Which calcium channel blocker is most appropriate?
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For AF or atrial flutter rate control, use diltiazem or verapamil, not amlodipine.
Updated On: May 14, 2026
- Amlodipine
- Nifedipine
- Diltiazem
- Felodipine
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The Correct Option is C
Solution and Explanation
Concept:
Non-dihydropyridine calcium channel blockers such as diltiazem and verapamil are used for rate control in atrial arrhythmias.
Step 1: Identify required action.
The drug should slow AV nodal conduction and control ventricular rate.
Step 2: Choose correct CCB class.
Diltiazem is a non-dihydropyridine calcium channel blocker.
Step 3: Exclude other CCBs.
Amlodipine, nifedipine and felodipine mainly act on vessels and are not preferred for atrial flutter rate control.
Step 1: Identify required action.
The drug should slow AV nodal conduction and control ventricular rate.
Step 2: Choose correct CCB class.
Diltiazem is a non-dihydropyridine calcium channel blocker.
Step 3: Exclude other CCBs.
Amlodipine, nifedipine and felodipine mainly act on vessels and are not preferred for atrial flutter rate control.
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