Ventricular fibrillation is an abnormal heart rhythm that affects the heart’s ventricles. It is life-threatening and requires immediate medical attention as sustained V-fib can lead to cardiac arrest and death. V-fib may happen several times a day in some people which is called an “electrical storm”. V-fib can be fatal with complications being the possibility of repeat episodes of fainting or near fainting. CPR and defibrillation may be life-saving as it can restore the heart to its normal rhythm. For training, make sure to select a certified training center such as the AHA certified CPR Nashville in Tennessee. Courses for both healthcare and non-healthcare providers are offered. After an episode of ventricular fibrillation, medications and cardiac procedures can prevent or reduce the chances of another episode. Also, an implantable cardiac defibrillator can promptly treat V-fib. People should be aware of what to do in case someone collapses because of ventricular fibrillation.