An 84-year-old woman was brought to the emergency room with lightheadedness and shortness of breath that had started 3 days earlier. She had a past medical history of paroxysmal atrial fibrillation, hypertension, and coronary artery disease.
An 84-year-old woman was brought to the emergency room with lightheadedness and shortness of breath that had started 3 days earlier. She had a past medical history of paroxysmal atrial fibrillation, hypertension, and coronary artery disease.
An 84-year-old woman was brought...