October 16th marks World Heart Revival Day. In Croatia, about 9,000 people experience cardiac arrest every year outside the hospital. Of that number, only 900 survive, and according to world studies, up to 4,500 could survive. In 60-80% of cases, cardiac arrest is witnessed by citizens. In order to reduce the mortality due to sudden cardiac arrest, it is necessary, among other things, for cardiac arrest witnesses to begin immediately with resuscitation and for an automatic external defibrillator to be used as soon as possible. Early performance of KPR can triple the chances of survival for patients during cardiac arrest, and the importance of knowing how to sustain life is reflected in the fact that the chances of surviving cardiac arrest are reduced by 10 to 12% every minute. In Europe, cardiovascular disease causes 40% of all deaths below the age of 75 years. Sudden cardiac arrest is responsible for more than 60% of the causes of death in adults with coronary heart disease. One third of all people who develop myocardial infarction die before coming to the hospital, and most die within the first hour after the onset of acute symptoms. Early identification of patients with a worsening condition and prevention of cardiac arrest are the first link in the survival chain. A first aid provider is defined as a person who is trained in first aid and should be able to identify, evaluate and prioritize first aid and provide care using the necessary skills, identify the limit to which he or she can assist and seek additional medical help when needed. The aim of the research of this paper is to analyze the data that will be obtained by the research, which will relate to the education and knowledge of the students of the University of the North direction of Nursing on basic life support measures. The study involved 148 subjects. The research was conducted by a self-designed structured online survey consisting of 15 questions. The survey included general data and questions related to basic recovery measures. The results show that health professionals are statistically significantly more likely than participants who do not work in the health profession to have knowledge of the basic methods of resuscitation.