Differential DIagnoses: AV blocks, prolonged QTc intervals, T wave inversions, and more!

UMEM Potpourri ECG Cases with Dr. Amal Mattu


A 50-year-old woman is brought into the emergency department unresponsive. History is otherwise limited. The following ECG is obtained with no prior ECGs available for comparison.

Before watching the video, look closely at this ECG and ask yourself:

  1. What ECG abnormalities do you notice?
  2. What is your differential for prolonged QT intervals?
  3. What is the most likely cause of the ECG abnormalities seen?