us-abim MCQ (SBA): HFrEF (tachycardia management)

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ModerateCardiologyHFrEF (tachycardia management)us-abimus-usmle-step-3

A 58-year-old with HFrEF (EF 25%) remains tachycardic at 78-82 bpm on maximally tolerated beta-blocker and ARNI/MRA/SGLT2. NSR. Which additional therapy can reduce HF hospitalization?

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