[The organizational aspects of laboratory diagnostics of acute conditions: a lecture].

The article presents data concerning the prevalence of acute diseases and conditions in the Russian Federation. The main requirements are exposed concerning the laboratory diagnostics of acute conditions. The results of analysis of regulating documents concerning this issue are presented.

[Significance of the operational test parameters in selection of a diagnostic test for Helicobacter infection].

The group of 89 patients was examined, 63 of them suffered by a duodenal ulcerative disease, 11--by gastric ulcerative disease and 15--by chronic gastritis. It was conducted the comparison of the following indices: sensitivity, specificity, relationship of probability and diagnostic efficiency of histological, cytological methods, urease and respiratory tests, method of polymerase chain reaction, qualitative and quantitative definition of antibodies of the class IgG in serum blood to H. pylori by a method of enzyme immunoassay and Western-blot for H.