Rhythm Interpretation: is the PR interval constant, lengthening, or randomly changing?

ECG Weekly Workout with Dr. Amal Mattu


 A 78-year-old woman presents to the emergency department after an episode of syncope. 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 the most likely underlying rhythm?
  3. How would you treat this patient?