USMLE Step 2 - Question 27

A 32 year old male with no significant past medical history presents to the emergency room with 3 hours of chest pain at rest. He recently has had an upper respiratory tract infection for which he has been taking over the counter medications for symptoms relief. His blood pressure is 120/80, heart rate 80, and respirations 20. Physical examination is normal. Laboratory and a chest x-ray is normal. His ECG is below. Which of the following is the most likely diagnosis?

A. Dilated cardiomyopathy

B. Pericarditis

C. Constrictive pericarditis

D. Myocardial ischemia