Practice question

Answer the question and get instant feedback.

ModerateCardiologyCRT Indicationus-abimus-usmle-step-3

A 73-year-old woman with HFrEF and LBBB, QRS duration of 165 ms, ejection fraction of 25%, and NYHA class III symptoms despite guideline-directed medical therapy (GDMT). What is the best device to consider?

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