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

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ModerateCardiologyHeart Failure (MRA)us-abimus-usmle-step-2us-usmle-step-3

A 52-year-old with HFrEF (EF 32%), NYHA II, K⁺ 4.6 mEq/L, eGFR 58, on ARNI and beta-blocker. Which addition provides mortality benefit and is indicated?

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