us-abim MCQ (SBA): Heart Failure with Reduced Ejection Fraction

Instant feedback + full explanation. One question, done properly.

ModerateCardiologyHeart Failure with Reduced Ejection Fractionus-abimus-usmle-step-2us-usmle-step-3

A 59-year-old with new HFrEF (EF 28%) on ACE inhibitor and beta-blocker presents for optimization. HR 82/min, K+ 4.6 mEq/L, eGFR 70. Which mortality-reducing addition is indicated now?

Educational content. Not a substitute for clinical judgement or local policy.