Question

A 58-year-old with symptomatic AF is started on metoprolol succinate 100 mg daily and continues to have fast AF. Next rate-control step?

Accepted Answer

Add diltiazem if HFrEF absent; otherwise consider digoxin adjunct

Answer

Switch to Class Ic antiarrhythmic without evaluation

Answer

Start amiodarone for rate control first-line in all

Answer

No further therapy needed

Answer

Immediate ablation without considering rate goal

Practice question

A 58-year-old with symptomatic AF is started on metoprolol succinate 100 mg daily and continues to have fast AF. Next rate-control step?