“…Thus, one of the studies analyzed showed that the nurse in a care home, a communitybased service, used the NP in the treatment of one of the residents with a long-standing mental disorder, resulting in an improvement in the clinical status (14) , in this way, in the context of psychiatric nursing care, the focus of the NP is aimed a goals and based on a decision-making or problem resolving model that aims to improve patients' response to health problems and, in the patient in question, the goal was to better deal with their psychological suffering (5,14,28) . Another aspect to be considered in caring for patients with mental illness is adherence to treatment, defined as the degree to which patients adopt the health care professional's recommendations (6) , s two of the studies indicated that applying Irving's NP enabled two patients with mental disorders to adhere to treatment (15,19) , as it strengthened the treatment relationship between the nurse and the patient through developing the stages of the NP together, the linked between the subject and the nursing professional grew much closer (5) . At the same time, the NO contributes to constructing the treatment project as it enables the subjects' needs and responses to the health problems to be known, encouraging the drawing up of an individualized nursing care plan (5) .…”