THIRD DEGREE (COMPLETE) AV BLOCK
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  • May occur with any supraventricular rhythm and is due to complete block in conduction from atria to ventricles
  • R-R interval is regular
  • QRS rate is decreased
  • QRS duration is normal or abnormal
  • Complete AV dissociation is present

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  • First degree AV block
  • Second degree AV block
  • AV dissociation
  • Sinus bradycardia