Abstract
This article studies the development of advanced practice as a new area of intervention within the nursing profession. It questions the role of medical delegation in the exercise of advanced practice and its impact on professional autonomy. Drawing on the contributions of the interactionist approach and the economy of conventions, we analyze the principles of justification mobilized by the nursing profession and the tensions at work in the professionalization process of Advanced Practice Nurses (APNs). We show that an argumentation of the social utility of their activity accompanies their implementation in the organization where they practice in order to delimit their legitimate, recognized and specific scope of intervention.
Keywords: advanced practice, justification, professionalization, training.