Cardiac arrest

Cardiac arrest is a condition where heart stops working suddenly and unexpectedly. The person looses consciousness and remains unresponsive. The patient needs immediate cardiopulmonary resuscitation (CPR) and or use of defibrillator. Cardiac arrest is due to electrical malfunctions which sets heart out of rhythm causing events such as tachycardia (faster heart beat), bradycardia (slower heart beat) or ventricular fibrillation (abnormal heart rhythm with quiver) which causes heart to cease all together leading to cardiac arrest.