Cardiopulmonary resuscitation (CPR) represents the most important form of saving a patient by a nurse/medical technician when we talk about outpatient and hospital patient care. Cardiac arrest and sudden cessation of breathing are two things that lead to the need to perform CPR. Therefore, it is important to repeat the basic methods of providing first aid, but also follow the new guidelines related to CPR. The diagnosis of cardiac arrest needs to be made quickly, within about 10 seconds without wasting time. Sudden cessation of the mechanical activity of the heart can be observed by tissue hypoperfusion, loss of consciousness and absence of a palpable peripheral pulse and breathing. The most important thing is to recognize them in time and work on ensuring the return of spontaneous circulation and establishing perfusion of the brain as the second most endangered organ in cardiac arrest. Precisely in order to reduce the time from identifying a cardiac arrest and starting proper CPR, the interaction between the dispatcher of the emergency medical service, the person providing CPR and the timely use of an automatic external defibrillator is crucial. Those three links of the survival chain are the most important in order to effectively perform CPR. Every nurse and medical technician is an important and active member of the community who, in their daily life, works to care for and save human lives. With their work and competences, they are an important link in the chain for survival, and that is precisely why it is important to continuously renew their knowledge of CPR. As part of the work, the level of knowledge and attitudes of University of the North students about CPR was investigated with the aim of gaining insight into the existing level of knowledge and attitudes with the possibility of elaboration for further education and research. The level of knowledge measured by this research is lower than expected (<60%), and the knowledge of students about the equipment of the University of the North with an automatic external defibrillator was lower than expected (≈55%).