Review Question - QID 106816

A 48-year-old female with hypertension and diabetes presents with severe chest pain. She describes the pain as sharp at the mid-sternum without radiation. The chest pain has occurred three times in the past week, each time while at rest. She does note episodes of chest discomfort while eating and drinking. The patient's vital signs are as follows: T 98.7, P 89, BP 132/78, RR 14, SpO2 98% RA. Cardiac markers are within normal limits. Electrocardiogram is as follows (Figure A). Stress test is normal. Which of the following would most likely yield the diagnosis of this patient's chest pain?