Differential Diagnoses: altered mental status and a short QT interval

ECG Weekly Workout with Dr. Amal Mattu


A middle-aged adult presents to the emergency department with altered mental status. He was dropped off in the waiting room by family. He has no known medical history. The following ECG was obtained:

Before watching this week’s video, ask yourself these questions:

  1. What ECG abnormalities do you notice?
  2. What is the most likely cause of the ECG abnormalities?
  3. Would you activate the cath lab?