Ventricular Pacemaker Rhythm - Pacemaker Rhythms

Ventricular Pacemaker Rhythm

  • Ventricular pacemaker rhythm is easily identified by the conspicuous presence of a pacing spike immediately preceding the QRS complexes.
  • Sometimes there will be P waves in the tracing, sometimes there will not.
  • Follow the five-steps of rhythm analysis and document as always.
image P118 ventricular pace

Practice Strip

pacemaker ecg image ventricular

Analyze this tracing using the five steps of rhythm analysis

Show Answer
  • Rhythm: regular
  • Rate 83
  • P Wave: absent
  • The PR interval: n/a
  • QRS: 0.16 sec, wide and bizarre with spikes
  • Interpretation: Ventricular Pacemaker Rhythm with 100% capture

Authors and Sources

Authors and Reviewers


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