A patient presents to the emergency department with 10/10 ch…

A patient presents to the emergency department with 10/10 chest pain and diaphoresis. He reports having consumed two energy drinks while studying for his pharmacology exam. On initial assessment, he is lethargic and minimally responsive. The nurse places the patient on a cardiac monitor and notices the following: Based on the patient’s presentation and cardiac monitoring findings, which of the following is the most appropriate interpretation and underlying pathophysiologic mechanism?