High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Psychiatric nursing or mental health nursing is the speciality of nursing that cares for people of all ages with mental illness or mental distress, such as schizophrenia, bipolar disorder, psychosis, depression or dementia. Nurses in this area receive additional training in psychological therapies, building a therapeutic alliance, dealing with challenging behavior, and the administration of psychiatric medication.As with other areas of nursing practice, psychiatric mental health nursing works within nursing models, utilizing nursing care plans, and seeks to care for the whole person. However, the emphasis of mental health nursing is on the development of a therapeutic relationship or alliance. In practice, this means that the nurse should seek to engage with the person in care in a positive and collaborative manner that empowers them to draw on their inner resources in addition to any other treatment they may be receiving.