Ventricular Fibrillation

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This is part of: Ventricular Arrhythmias
Ventricular Fibrillation (VF or V-fib)
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Atrial rate 60-100 bpm
Ventricular rate 400-600 bpm
Regularity irregular
Origin ventricles
P-wave AV-dissociation
Effect of adenosine none
Example ECG: {{{example}}}
Example ECG2: {{{example2}}}

Ventricular fibrillation (VF or V-fib) is chaotic depolarisation of the ventricles. Mechanically this results in an arrested cardiac pump function and immediate death. VF can only be treated by immediate defibrillation. If you consider ventricular fibrillation in a conscious patient, than you should look for a technical problem with the ECG, eg. movement or electrical interference.

Examples