Junctional Rhythm - Course # 314-9
- Rhythms are often named according to the origin of the electrical activity in the heart or the structure where the problem is occurring.
Junctional Rhythm aka Junctional “Escape” Rhythm is aptly named due to the electrical impulses causing the atrial activity are originating in the AV Junction.
The rate for this rhythm is the same as the AV Junction, 40 – 60 bpm.
The change in the locus of stimulation affects the morphology (inverted) and potential location of the P waves (before, during or after the QRS complex).
If the P wave occurs before the QRS, the PR interval will likely measure shorter than normal (0.12 second).
If the P wave is buried or occurs after the QRS, it cannot be measured.
- Analyze this tracing using the five steps of rhythm analysis.
Compare your answers with the answers on the next slide.
- Rhythm: Regular
- Rate: 43
- P wave: inverted
- PR interval: 0.08 sec
- QRS: 0.08 sec
- Interpretation: Junctional Escape Rhythm
314 Junctional Rhythm - Course # 314-9