INTRODUCTION: Reanimation procedures, i.e. cardiopulmonary resuscitation (CPR), consists of a set of resuscitation measures that are taken to restore vital functions to a patient who has stopped breathing and/or whose heart has stopped beating. CPR includes basic (BLS; eng. Basic life support) and advanced (ALS; eng. Advanced life support) life support measures. BLS is started immediately, i.e. "on the spot" by ensuring the patency of the airway, giving artificial respiration and external heart massage in order to establish and ensure basic oxygen supply to vital organs. ALS are added after the implementation of basic life support measures and include the use of all available modern aids and devices for maintaining cardiopulmonary function. AIM: The aim of this paper was to collect information using anonymous survey to determine the extent of the knowledge and familiarity with the BLS and ASL life support methods among the hospital and non-hospital staff, from the point of view of the timing of their first encounter with CPR, the level of education and the frequency with which the staff refresh their CPR knowledge. Finally, the aim was also to determine who has comparatively better theoretical knowledge of CPR: the hospital or non-hospital staff. METHODS: The prospective survey covered 72 respondents – members of nursing profession in both hospital and non-hospital positions. Data were collected through an anonymous Google interface-based survey. The survey was composed of 15 questions, covering the respondents’ demographic data, level of education, theoretical and practical knowledge of BLS and ALS CPR procedures, as well as the incidence of continuous CPR training among the respondents. The data thus collected were presented in a tabular format. The analysis and the comparison of the results were processed using the IBM_SPSS_ver21 statistical model. A statistically significant difference was accepted at the value of P<0.05. RESULTS: The majority of nursing staff first learn about CPR in high school (58%; both the hospital and non-hospital staff at an equal rate of 29%) and as part of the driving school programme (22%). 64% of the respondents know how to apply the BLS procedure of CPR, 35% know how to apply the ASL procedure of CPR, while 1% of respondents do not know how to apply the full CPR protocol. Only 28% of respondents have an opportunity to refresh their knowledge of CPR. Among them, 24% refresh their knowledge every two years (10% among the hospital staff and 14% among the non-hospital staff); 14% every four years (8% among the hospital and 6% among the non-hospital staff). It is important to emphasise that 63% of respondents did not have an opportunity to refresh their knowledge of CPR either in the hospital (32%) or in the non-hospital setting (31%). CONCLUSION: Although the nursing staff both in the hospital and non-hospital settings are trained in CPR in high school, only 35% have knowledge on application of ALS methods, while 1% would still not know how to apply the CPR protocol. Furthermore, the hospital nursing staff have a higher level of CPR knowledge, albeit by a statistically insignificant margin. The majority of the nursing healthcare professionals in either setting still do not have sufficient opportunity to refresh their knowledge of CPR on a continuous basis.