Triage can be done by all health workers at the emergency who passed the course in triage. The primary goal of triage is fast identification of a patient in a state of immediate life threat. A nurse has to be able to decide in which triage category she will put the patient. Her communication with a patient and his family /accompaniment is important for further cooperation. Due to that, a nurse in triage must not have difficulties in communication and has to be educated enough to recognize patient´s ailments. The goal of graduate thesis: To demonstrate the importance of the nurse´s role in patient triage in the United emergency admission unit, based on the results from 2017. Materials and methods: Collection and processing of data on reception of patients by filling the form for triage electronically, as well as medical documentation filled electronically. The above criteria were used: number of patients according to the categories of triage, total number of triage patients during 2017., average waiting time for the beginning of doctor's examination (min), average total duration of stay in the emergency admission unit (min) and its effectiveness. The respondents are the patients who were received in the United emergency admission unit Zadar during 2017., independent of age, sex and diagnosis on reception. Conclusion: Due to the increase of the number of the patients, demands and complexity of medical care , emergency departments are faced with the problem of overwork and poor efficiency of work itself. A triage nurse/technician is the first person that a patient meets when coming to the United emergency admission unit. Her professionalism, quality education and wide spectrum of knowledge for the patient's ailments is extremely important for correct and quality triage performance in the emergency department.