Weekly Workout · #324 · March 15, 2021

Wide Complex Tachycardias: What is the Lewis lead and how you can use modified ECG leads to help make the diagnosis

HPI

A 60-year-old male presents to the ED with acute chest pain and lower extremity edema. He is noted to be tachycardic on arrival. The following ECG is obtained:

Presenting ECG — Wide Complex Tachycardias: What is the Lewis lead and how you can use modified ECG leads to help make the diagnosis

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