A 50-year-old man with a history of uncontrolled hypertension is found unresponsive at the side of the street and is brought to the ED.
His temperature is 37.0° F, blood pressure is 190/100 mm/Hg, heart rate is 50 beats per minute, respiratory rate is 8 per minute. He is unresponsive on physical exam. Heart and lung exams are normal. Laboratory studies, including electrolytes and troponin levels, are all normal. His ECG is below.
What are the ECG findings?