Arrhythmias USMLE Step 1 Practice Question
A 74 year old man comes to the clinic because of intermittent palpitations and reduced exercise tolerance for 3 months. He has hypertension and diabetes mellitus. Pulse is irregularly irregular at 118 per minute. Electrocardiogram shows absent discrete P waves and irregularly spaced QRS complexes. This patient is at increased risk for thrombus formation in which of the following locations?
Answer choices
- ARight ventricular apex
- BCoronary sinus
- CLeft atrial appendageCorrect answer
- DPulmonary valve cusp
- EAscending aorta
- FLeft ventricular outflow tract
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