Q7. A 45-year-old white male presents to the ER after an episode of syncope. His medical history is unremarkable except for an upper respiratory infection one week ago. On physical examination, his temperature is 37.2 C (99" F), pulse is 90/min, blood pressure is 100/60 mmHg and respirations are 13/min. His neck veins are distended and his heart sounds are distant. His lungs are clear to auscultation bilaterally. Chest x-ray reveals small bilateral pleural effusions and an enlarged cardiac silhouette. Which of the following EKG findings is fairly specific for his condition?
