Review Question - QID 210600

A 72-year-old man presents to his primary care physician for a wellness visit. He says that he has been experiencing episodes of chest pain and lightheadedness. Approximately 1 week ago, he fell to the ground after abruptly getting up from the bed. Prior to the fall, he felt lightheaded and his vision began to get blurry. According to his wife, he was unconscious for about 5 seconds and then spontaneously recovered fully. He experiences a pressure-like discomfort in his chest and lightheadedness with exertion. At times, he also experiences shortness of breath when climbing the stairs. Medical history is significant for hypertension and hypercholesterolemia. He does not smoke cigarettes or drink alcohol. His temperature is 98.7°F (37°C), blood pressure is 147/78 mmHg, pulse is 88/min, respirations are 12/min, and oxygen saturation is 99% on room air. Cardiac auscultation demonstrates a systolic ejection murmur at the right upper border and a normal S1 and soft S2. Which of the following is most likely found in this patient?