clinical chemistry

Introduction. It was shown by a number of studies that characteristics of materi­als used for quality control (QC) are not identical to the natural samples charac­teristics. Nevertheless, QC materials re­main irreplaceable for daily variance as­sessment, but the information provided by QC measurements could be insuffi­cient if different equipment for the analy­sis of the same analyte is in use at the same laboratory.

Introduction. The main expectations of the customers of medical laboratory ser­vices (physicians and patients) are to get fast enough test results with good quality for the reasonable price. Current situa - tion in the market and economical pres­sure requires from the laboratories to achieve the maximum output with the best possible quality and with minimum of expenditure.