In this study, authors characterize nurse's managerial conduct in the perspective of the work, illustrated through the analysis of three investigations. Understanding the fragility of managerial nurse's situation, considering the commitment with the users and with the ones who provide the services, authors advocate in favor of an intervention to change this situation. Therefore, they propose an alternative of reflection about the changes that are necessary. They defend a new ethics articulating a new sense of providing care proposed by Boff, in which the relationship is based on the companionship, interaction and sharing. According to this way of being, nurse's care is an attitude of concern, responsibility and affective commitment with the other. Thus, the instrumental reasoning is substituted by the sensible reasoning and the spirit of deep feelings. Considering these new values, nurses understand better the other's dimension, the respect, reciprocity, and complementarity in the managerial relationship.