us-abim MCQ (SBA): Heart Failure (HFrEF)

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ModerateCardiologyHeart Failure (HFrEF)us-abimus-usmle-step-3

A 61-year-old with newly diagnosed HFrEF and sinus rhythm has resting HR 84 bpm on maximally tolerated beta-blocker and ACE inhibitor; EF 28%. Which addition specifically lowers heart rate and HF hospitalization?

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us-abim MCQ: Heart Failure (HFrEF) — Answer & Explanation | iatroX