us-abim MCQ (SBA): Heart Failure

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ModerateCardiologyHeart Failureus-abimus-usmle-step-3

A 63-year-old with HFrEF (LVEF 28%) on ARNI and beta blocker has K⁺ 4.6 mEq/L, eGFR 45. Which addition is indicated to reduce mortality?

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