STAT ECG Diagnoses: the ECG findings in sodium channel blocker toxicity

ECG Weekly Workout with Dr. Amal Mattu


A father calls an ambulance for his 16-year-old daughter who is not feeling well. She has been listless and having palpitations. She is found to be tachycardic with a normal blood pressure on arrival to the emergency department. 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 axis and rhythm?
  3. What is the most likely cause and your initial treatment of choice?