The exercise of nurses professional activity of has as fundamental objectives health promotion, disease prevention, treatment, rehabilitation and social reintegration. More, it follows that nurses have a functional complementarity of activity in relation to other health professionals, but endowed with the same level of dignity and autonomic professional exercise. In this context of multidisciplinary activities, we can identify two types of intervention: a) Initiated by other team technicians - interdependent interventions, where the nurse is responsible for the technical implementation of the intervention; b) Initiated by nurse prescription - independent intervention, in which the nurse is responsible for prescribing the intervention and its implementation. In both types of interventions, nurses have to decide on its implementation, based on the knowledge they hold, identification of target care issues, benefits, risks and potential problems that may arise from the implementation, acting on best interest of the assisted person. When appropriate, should the independent intervention of nurses be developed and consolidated. Nurses replace and help complement the functional skills of people in situations of dependency in carrying out their basic needs. In this context, nurses guide their interventions to meet those needs, the maximum independence in carrying out their activities of life, the rehabilitation process and functional adaptation to the deficits, helping the person / target care to build its health project. Nurses act in accordance with the guidelines and benchmarks for best practices, actively participating in the identification, analysis and control of potential risks in a limited practice context, paying particular attention to protecting the most vulnerable groups, such as the dependent person. Whereas customers and families are entitled to safe care and that safety should be a key concern for professionals and health organ