A medical emergency is a serious and unexpected situation involving illness or injury that requires immediate medical treatment. One of the most common and severe life-threatening medical emergencies are cardiovascular emergencies. Defibrillation is a procedure used to treat life-threatening conditions that affect the rhythm of the heart such as cardiac arrhythmia, ventricular fibrillation, and pulseless ventricular tachycardia. This training is suitable for non-acute healthcare staff such as healthcare assistants, medical secretaries, and members of the public. For more information visit: www.medicore.ie/first-aid-courses/heartsaver-aed-and-cpr.html