Knowledge of basic life support procedures (BLS) is the work essence of medical staff. The fact is that the expertise, training and knowledge of those procedures, stems from a good basic knowledge of the theory of BLS, as well as continuous practice. In this final paper, we will get acquainted with the procedures of the BLS and the latest guidelines in their implementation. Using the information collected through the survey questionnaire, we will assess the level of knowledge of BLS procedures in nurses and technicians. The survey questionnaire “Knowledge of BLS procedures among nurses / technicians” consisted of 5 questions related to sociodemographic data: age, gender, level of education, working place and work experience. The remainder of the survey questionnaire consisted of 12 questions related to BLS procedures in which respondents were asked to choose the correct answer among the statements offered. The obtained results will confirm whether there is a statistically significant correlation between the level of knowledge of BLS procedures and the level of education, activities in the profession and work experience of the respondents. We will compare our results with the results of similar research in the world. Medical professionals are expected to be well acquainted with BLS procedures and to be well trained to perform them. The goal in the future is to recognize the need for more frequent recurrence of BLS procedures (especially in those services that rarely encounter cardiac arrest) which would ultimately create a basis for improved survival and better outcome of the postresuscitation period among persons who have experienced cardiac arrest.