Sorption capacity of erythrocytes (SCE) and erythrocyte membrane permeability (EMP) have been determined along with a number of other biochemical parameters to assess the degree of intoxication in 265 critically ill patients. EMP was determined by a modified technique of V. N. Kolmakov. A high correlation between EMP, SCE and the level of biologically active substances has been established. Therefore, EMP and SCE are regarded as basic criteria reflecting the severity of endogenous intoxication and changes in these values form the basis for intoxication classification.
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