[Development of a model as a pathophysiologic study method in clinical and experimental nephrology].

After explanations concerning principal qualities of the models follow examples from nephrology about theoretical and concrete modelling. Consequences for the renal functional, performance and reagibility diagnostics are discussed. The ability of mathematical modellings for statements is shown at the instance of the ureal plasma kinetics in apparative peritoneal detoxication methods and in connection with investigations about the implantable kidney as well as supplemented by explanations concerning the dynamic compartment modelling of the potassium balance.