[The Leonetti law relative to the patients' rights and end of life. From educational measurement of knowledge to thinking about professional practices].

Version 2 of accreditation, known as "certification" by 13 th August 2004 law, introduces assessment practices. The opportunity of introducing these practices, offers to the of introducing these practices, offers to the whole health professional members the possibility of using concretely in their practices, the results and knowledge issued in health taking care research. Registered in a dual approach (research and process quality), the research we have driven aimed to analyze the knowledge, the attitudes and the practices associated to the Léonetti Law Act (Act no 2005-370 from 22nd Apr 2005, in reference with patients' rights and the end of life), towards all kind of health professionals. 1770 of them, working at Toulouse Universitarian Hospital, have answered inquiries which included questions about professional knowledge (confidence person, advanced directives) as well as questions linked with professional practices (attitudes, behaviours, decisions taken ...). The results point out a certain consensus on professional practices: good knowledge about the notion of confidence person, changes in the replies rate about the discriminating variable "seniority", new emerging professional attitudes. This kind of research underlines the deep links between knowledge systems and the attitude requires around palliative care.