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Heart Blocks Module

Heart Block Dysrhythmias

Thomas E. O'Brien

Learning Objectives

At the conclusion of this training module the reader will be able to:

  • Recall and apply the 5-steps of heart rhythm interpretation
  • Recognize the difference between regular and irregular rhythms
  • Recall the normal range for PR interval and QRS complex
  • Recognize the features and qualifying criteria for the following complexes and rhythms:
    • First Degree Heart Block
    • Second Degree (Mobitz) Heart Block Type I aka Wenckebach Phenomenon
    • Second Degree (Mobitz) Heart Block Type II
    • Third Degree Heart Block aka Complete Heart Block


Authors and Reviewers

Authored by Thomas O'Brien
Medically reviewed by Dr. Jonathan Keroes, MD, Cardiology
Last Update: 11/8/2020
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