The heart is no longer an effective pump and is reduced to a quivering mess. Unless advanced life support is rapidly instituted, this rhythm is invariably fatal. Prolonged ventricular fibrillation results in decreasing waveform amplitude, from initial coarse VF to fine VF and ultimately degenerating into asystole .This rapid disorganized electrical activity actually makes the heart appear to quiver in response to this activity. Some have described it as shaking like Jello. Fibrillatory waves may be coarse or very fine. This is based upon their size. The longer V Fib occurs, the smaller the waveforms are likely to be. Coarse V Fib is when a .
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Ventricular fibrillation VF is the the most important shockable cardiac arrest rhythm. The ventricles suddenly attempt to contract at rates of up to 500 bpm. This rapid and irregular electrical activity renders the ventricles unable to contract in a synchronised manner, resulting in immediate loss of cardiac output..
.// A narrated and animated review of Coarse and Fine Ventricular Fibrillation. To learn .
Ventricular fibrillation. Ventricular fibrillation V-fib or VF is when the heart quivers instead of pumping due to disorganized electrical activity in the ventricles. It is a type of cardiac arrhythmia. Ventricular fibrillation results in cardiac arrest with loss of consciousness and no pulse..
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