To map and categorize, according to the Nursing Interventions Classification (NIC), the specific assignments of the nurses and to identify the assignments shared with doctors and physiotherapists in the Emergency Service.Descriptive exploratory study, carried out in two phases: first, the analysis of dissertations /theses from the database of the Center for Studies and Research of the Brazilian Nursing Association; Second, the use of the Delphi Technique to reach the consensus about which assignments were specific to the nurse and which were shared with physiotherapists and doctors.The results were 45.7% for specific to the nurses, 14.2% for shared with physiotherapists and/or doctors, and in 40% (n=42) there was no consensus about the sharing of assignments.The sharing of actions among professionals shows an increase in the scope of the practice of professions and the constitution of a common sphere of work, but the high number of assignments with no consensus among specialists can be a potential factor in conflicts due to the lack of definition of these assignments.