Correction for the preanalytical factors is a necessary condition for quality assurance in sports biochemistry
This article presents an analysis of influence of various factors on results in sports biochemistry. The necessity of taking account of the preanalytical phase factors, of the influence of drugs and nutrition, and of the biological variation of the studied analytes when interpreting data of the biochemical examination was shown. The need for preanalytical phase standardization with due account for the features of high performance sport and the development of measures for minimizing the influence of preanalytical factors are reasoned.