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?
- A)Right ventricular apex
- B)Coronary sinus
- C)Left atrial appendageGABARITO
- D)Pulmonary valve cusp
- E)Ascending aorta
Explicação
Left atrial appendage is correct. Atrial fibrillation causes stasis of blood in the left atrium, particularly in the left atrial appendage, which predisposes to thromboembolism and ischemic stroke. The irregularly irregular rhythm and absence of organized P wa... Ver explicação completa e trilha adaptativa →