OBJECTIVES: To analyze the NAS used in two hospitals based on complexity' thinking, one public and one private; Understanding the meaning of the NAS for the staff of the multi-professional team of health care in both institutions. METHODS: The methodology was the Data Fundamental Theory with interview of 15 people. As a result of the central theme: Realizing that the Nursing Assistance Systematization as a complex and interactive phenomenon, derived from two different phenomena as follows: Verifying the possibility of the multi-professional, complementary and interactive patient care and Identifying the lack of articulation among health care practice, knowledge and legislation. This article addresses the second phenomenon. CONCLUSION: The results showed that the implementation of the NAS is still incipient despite its strategies are recommended by theorists, as well as it is addressed in academic disciplines and demanded by professional legislation. It was suggested the use of the thinking complexity and the interdisciplinary for its novelty.
Nursing research; Professional practice; Patient care planning