[Procedures for optimizing the intralaboratory quality control in mass screening for hepatitis C virus antibodies]

The paper presents data on the optimization of intralaboratory quality control of tests for hepatitis C virus antibodies by enzyme immunoassay in the mass screening scope of studies. It is concluded that the control material prepared without assistance is suitable only to assess the convergence of the results of a study. The problems in the monitoring of the reproducibility of study results and in the standardization of on-line quality control involving the construction and keeping of control charts are solved by using standardized commercial materials and a computer-based data processing system.