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Ventricular Fibrillation (VF)

Ventricular Fibrillation

– An uncoordinated firing of the ventricles.

– No QRS complex can be seen

– leads to death, if untreated



  • Ventricular: Unknown (varies)
  • Atrial > Absent


  • P-R Interval: Chaotic
  • P-P Interval: absent


  • PR Interval: Absent
  • QRS Complex: Chaotic


Ventricular Fibrillation

– A quivering of the ventricles

– Patient has no Blood Pressure, Heart rate, Heart sounds and Respirations.

– Defibrillate patient STAT up to 3 times:   200, 300 and 360 Joules

– CPR, Oxygen

– Administer Epinephrine, Amidarone (Cordarone) and Lidocaine.


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