This review paper will show the health care of psychiatric patients who are in a state of acute mental illness or crisis that require urgent psychiatric and nursing interventions. Concepts and definitions in the fields of psychopathology, psychiatry and nursing will be listed and explained. Epidemiological characteristics of psychological disorders such as prevalence, incidence and distribution will be presented. Methods of assessing mental status and examining mental functions and conditions, as well as reviewing somatic status and measuring vital functions will be described. The main part will elaborate health approaches to the issue, starting with a psychiatric approach in which diagnostic criteria, comorbidity, mental and somatic diseases and treatment with dominant psychopharmacological interventions will be indicated and explained. The psychotherapeutic approach and techniques of psychoanalytic – psychodynamic therapy, cognitive - behavioral therapy and humanistic therapy or treatment with dominant psychosocial interventions will be explained. A nursing approach will be given and explained, the role of which is essential at all levels including assessment, prevention, detection, treatment and rehabilitation, and participation in the management of emergencies in psychiatric patients. That implies the evaluation and examination of health, psychophysical and mental state and functioning, determination of nursing diagnoses and health care needs, and planning and conducting psychiatric nursing interventions, including the most important therapeutic communication and relationship of the nurse – patient. Finally, the hospitalizations of psychiatric patients in urgent and crisis conditions will be listed and explained and the application of protection measures of physical and chemical restraint will be described.