An apparatus for extracorporeal blood treatment comprising a control unit and a display device, wherein the apparatus for extracorporeal blood treatment is equipped with a person locating and identifying device and the person locating and identifying device and the display device are in contact of information exchange with each other via the control unit and the person locating and identifying device is adapted to obtain and to process information about the position of a person being located in the environment of the apparatus for extracorporeal blood treatment, and the display device is adapted to display on a display information in response to the position of the person so that it is visible from the position of the person.
