One of the biggest problems of work life today is burnout. With burnout, satisfaction of clients and service givers reduces. In this study, burnout levels of nurses working in the internal, surgical and intensive care units of a university hospital and the unmet needs of the patients' relatives related to nursing care were investigated. In the study, 225 nurses and 222 relatives of patients constituted the sample group of this study. Three separate forms were used in the study, namely, Nurse and Patient Relative Identification Form, the Maslach Burnout Inventory and the Nursing Services Satisfaction Inventory. In the study, burnout levels of the nurses were found to be high. Conditions like younger ages, scarcity of experience in the profession, lower levels of education, having chosen the profession and the unit they work in not willingly and working in environments like intensive care increase the burnout and as a result, expectations of the relatives of patients from nursing care are not fully met. Some suggestions have been made to make some regulations to prevent the burnout of nurses and to increase the satisfaction of relatives.