A 70-year-old man presents with sudden pain and ischemic changes in his left leg. An arterial embolus is suspected. The following is/are true:
A. The most likely source of an arterial embolus is from intracardiac thrombus on a previous MI
B. If atrial fibrillation (AF) is present, it is known that chronic AF is less likely to produce embolism than paroxysmal AF
C. Currently, the most common cause of AF is ischemic rather than rheumatic heart disease
D. Aspirin is more effective than coumadin in AF for reducing risk of stroke and cardiovascular mortality
Answer:C
A 70-year-old man presents with sudden pain and ischemic changes in his left leg. An arterial embolus is suspected. The following is/are true:
A. The most likely source of an arterial embolus is from intracardiac thrombus on a previous MI B. If atrial fibrillation (AF) is present, it is known that chronic AF is less likely to produce embolism than paroxysmal AF C. Currently, the most common cause of AF is ischemic rather than rheumatic heart disease D. Aspirin is more effective than coumadin in AF for reducing risk of stroke and cardiovascular mortality