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

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

MediumCardiologyHeart Failure (HFrEF)us-abimus-usmle-step-2us-usmle-step-3

A 59-year-old with HFrEF (EF 25%) on ARNI, β-blocker, MRA, and SGLT2 inhibitor remains symptomatic (NYHA III), Black race. What additional therapy reduces mortality?

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