Description: Disadvantages of application the variation coefficient as accuracy characteristics of the clinical measurement results are shown. Using the uncertainty of measurements for accuracy quantitative expression results of laboratory researches is proved. The approach, allowing to simplify estimation of the standard uncertainty of quantitative results of clinical tests is offered. Analytical expressions for estimation of standard uncertainties of elementary functions are resulted in the table.
Keywords: clinical researches, medical norms, erroneous decisions, exactness, coefficient of variation, standard vagueness