Differential Diagnoses: large T waves and prolonged QT intervals

ECG Weekly Workout with Dr. Amal Mattu


A 40-year-old man presents with palpitations and malaise. Vital signs are within normal limits with a normal temperature. The following ECG is obtained:

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

  1. What ECG abnormalities do you notice?
  2. What is your differential for the interval abnormalities seen?
  3. What is the most likely diagnosis?