[Forensic medical assessment of the validity of medical risk].

The notions of an unfavorable outcome as accepted in medical practice as well as those of defected medical care and of iatrogeny are presented in the paper alongside with examples from forensic medical practice. An algorithm is suggested for the thanatogenetic analysis applicable to detection and evaluation of the cause-and-effect relations between the therapeutic-and-diagnostic measures, on the one hand, and the above outcome, on the other hand. Risk criteria are substantiated with reference to medical practice. Finally, a objective assessment scheme is suggested to confirm that the diagnostic and treatment tools, related with a higher risk, were justifiable.