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Sinus Exit Block - Sinus Rhythm.


Description

sinus exit block ekg tracing
  • Sinus Exit Block looks very much the same as Sinus Arrest with one important distinction.
  • The duration of the pause with Sinus Exit Block is in a direct multiple of the R to R interval of the underlying rhythm. Sinus Arrest does not have this specific feature.

Practice Strip

sinus exit block tracing

Analyze this tracing using the five steps of rhythm analysis.

Show Answer
  • Rhythm: Irregular
  • Rate: 40 bpm
  • P wave: upright and uniform
  • PR interval: 0.16 sec
  • QRS: 0.10 sec
  • Interpretation: Sinus Exit Block





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