Sinus Exit Block ECG Interpretation #313


Description

sinus exit block ECG 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 arrest vs sinus 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





Authors and Sources

Authors and Reviewers


Sources




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Reference Guide
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? v:9 | onAr:0 | onPs:2 | tLb:0 | pv:1
uStat: False | db:0 | cc: US
| cDbLookup # 0 | pu: False | pl: System.Collections.Generic.List`1[System.String]
em: | newuser: False | cc: US | showD? False





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