Sign in or Join to use this FREE module.

PJC Tracings - Junctional Dysrhythmias.

Please sign in to use this FREE module.


Notice the following:
  • The R to R interval is irregular
  • The fourth complex is early
  • The P wave on the early complex is inverted.


Practice Strip


Analyze this tracing using the five steps of rhythm analysis.

Show Answer
  • Rhythm: Irregular
  • Rate: 70
  • P Wave: upright, early complex inverted
  • PR interval: 0.16 sec, early complex with shorter PR
  • QRS: 0.08 sec
  • Interpretation: Sinus Rhythm with PJC

Authors and Reviewers

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

An error has occurred. This application may no longer respond until reloaded. Reload 🗙