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

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HardCardiologyHeart Failure-CRTus-abimus-usmle-step-3

A 70-year-old with HFrEF on maximally tolerated GDMT asks about device therapy timing. EF 30% after 4 months. QRS 160 ms LBBB. NYHA II. What is recommended?

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