Ventricular Fibrillation

Ventricular Fibrillation (VF) is another lethal arrythmia that will result in death if left untreated. Ventricular Fibrillation is caused by multiple ectopic pacemakers firing within the ventricles, causing the ventricle to fibrillate. During fibrillation, the ventricles are unable to contract in a systematic fashion, which results in a failure of the heart to pump.

Ventricular Fibrillation ECG

Heart Rate: 200-500 beats per minute.

Rhythm: incomprehensible.

P-Waves: absent.

PR Interval: N/A

QRS Complexes: Irregularly shaped, pointed, and jagged.

VF can be both coarse (thick high bizarre QRS complexes) and fine VF, in which the lines are only mildy up and down anymore. Fine VF is generally a sign that the heart has been in VF longer and the ability of the myocardium to create electrical impulse has been reduced.

Ventricular Fibrillation Signs and Symptoms

This person is dead unless you resuscitate them.