From special care following surgery and from artificial respiration of polio patients the modern and very special intensive medical care has developed. At the same time the provisional "bedside radiology" was improved to one branch of clinical radiology with special organisation and methods of investigation. Importance and urgency of radiological information are requiring close cooperation of all medical branches. Functions of these different groups have to be defined. The movable X-ray apparatus of 20 kV output is necessary for every intensive care unit. Hard beam technique for lung X-rays, scattered radiation grids and adequate positioning of the patient are important to get the same high quality are important to get the same high quality are important to get the same high quality pictures than from the radiological department.