ECG Guru - Instructor Resources

A gathering place for instructors of ECG and cardiac topics.

       

Subscribe to me on YouTube

Idiojunctional rhythm

ECG Basics: Junctional Rhythm

Sat, 12/28/2013 - 18:59 -- Dawn

A basic rhythm strip showing junctional rhythm in Lead II.  The junctional pacemaker is located between the atria and the ventricles, and the resulting P wave is caused by retrograde conduction through the atria.  This causes the P wave to be negatively deflected in Lead II.  In junctional rhythms, the P wave can occur just before the QRS, during the QRS, or after the QRS, or may not be seen at all.  If the P wave occurs before the QRS, the PR interval is usually short, reflecting the fact that the atria and the ventricles are depolarized almost simultaneously.

All our content is FREE & COPYRIGHT FREE for non-commercial use

Please be courteous and leave any watermark or author attribution on content you reproduce.

Subscribe to RSS - Idiojunctional rhythm