Objective: to determine the rate of successful implementation of CPR in the outpatient emergency service in 2021, at the Institute for Emergency Medicine of the Osijek-Baranja County. Study structure: A cross-sectional study was conducted in which data from 2021 were processed. Subjects and methods: The research was conducted by examining the database of the Institute for Emergency Medicine of the Osijek-Baranja County. It was conducted on the data of 198 subjects who were resuscitated in out hospital conditions during 2021. Demographic and clinical data were collected from available medical records to form a retrospective study. The analysis will include age, gender, the time that has passed since the call for interventions, and information on the initiation of resuscitation. Results: During the intervention of the team of the Institute for Emergency Medicine of the Osijek- Baranja County, in 203 (43%) cases out of 469 experienced outside hospital arrest, the team of the Institute tried to perform cardiopulmonary resuscitation. The average response time required until the intervention of the staff of the Department of Emergency Medicine was 10 minutes and 58 seconds. The heart rhythms recorded in this study are primarily asystole with 253 cases, followed by PEA with 48 cases. AED without shock was applied in 93 (20%) cases, and with shock in 1 (0.2%) case. Medicines were administered in 201 (43%) cases, and the average first defibrillation time was 17 minutes after the call. Conclusion: The success of CPR implementation in the Osijek Baranja County falls within the European average, and the willingness of arrest witnesses to provide CPR is lower than expected and can be improved by educating the general population on ways in which they can implement first aid.