Ventricular Fibrilation

Lead II

Fine Vfib:Ventricular Fibrillation

Coarse Vfib:

 

12-Lead

 

Interpretation rules

  • Chaotic irregular deflections of varying amplitude
  • No identifiable P waves, QRS complexes, or T waves
  • Rate 150 to 500 per minute
  • Amplitude decreases with duration (coarse VF -> fine VF)
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