Solve the Unknown Tracing: MAR 2019 - Season 2 | Tracing 8

This educational series allows you to analyze a set of cardiac tracings and answer a question posed by Dr. Prystowsky PRIOR to viewing his video explanation and answer.

QUESTION: The reason for the change in retrograde activation is related to what?

  1. Loss of AP conduction
  2. Loss of LBBB
  3. Concealed conduction in the SP

Once you've made your selection scroll down for the correct answer.

The 2018-19 Series of Unknown Tracings are presented in partnership of HRS and EP on EP.

To enlarge the tracing, click or tap on the image. Smartphone users can expand the tracing image by rotating their screen.


ANSWER: Watch the short video below for Dr. Eric Prystowsky's answer.

4 min, 58 sec

Unknown Tracing Season 2 | Tracing 8

Last updated: 
09 Nov 2018