Introduction Rapid Response Teams (RRTs) were first introduced in hospitals in early 1990s in Australia and North America. The main purpose of RRTs is early identification of patients who deteriorate and fast introduction of appropriate treatment. In Poland RRTs were introduced in 2018. The aim of the study was to analyse the effects of RRT in a university-affiliated medical centre in Poland. Material and methods We performed a retrospective analysis of RRT interventions between October 2018 and January 2019. We retrieved data from intervention cards, consultation entries, and laboratory results. Moreover we analysed number of intra-hospital admissions to intensive care unit and hospital mortality before and after introduction of RRT. Results There were 71 interventions during the study period in 53 patients. Average number of interventions was 4.1 per week. The main reason for calling RRT was to assess respiratory status (64 interventions). The median white blood cell count, C-reactive protein and lactate concentration were 12.2 (IQR 9.2-16.7) x 109 L-1, 130.6 (IQR 49.3-198.2) mg L-1, 2.3 (IQR 1.8-2.9) mmol L-1, respectively. The most common procedure performed were arterial bod gas and endotracheal intubation. The number of intra-hospital admissions to ICU dropped by 29.2%. Conclusions The most frequent reason for calling RRT was to assess respiratory function. Laboratory data of patients suggested sepsis/septic shock as initial diagnosis. Introduction of RRT enabled early treatment of patients on general hospital floor and reduction of intra-hospital admissions to ICU. It is reasonable to train hospital staff how to assess respiratory function and diagnose sepsis.