INTRODUCTION This study describes quality indicators for the pre-analytical process, grouping errors according to patient risk as critical or major, and assesses their evaluation over a five-year period. MATERIALS AND METHODS A descriptive study was made of the temporal evolution of quality indicators, with a study population of 751,441 analytical requests made during the period 2007-2011. Th...

Lipoprotein electrophoresis on agarose gel has been modified to allow estimation of the absolute quantity of each fraction. The reproducibility of the method is illustrated by 12 determinations in a single day on serum from one normal subject: mean total dye uptake was 302 +/- 9 (sd "corrected dye units," and the percentages of beta-, pre-beta, and alpha-lipoprotein were 56.1 +/- 0.9, 29.1 +/- ...

Motivation Biobanks are important infrastructures for life science research. Optimal sample handling regarding e.g. collection and processing of biological samples is highly complex, with many variables that could alter sample integrity and even more complex when considering multiple study centers or using legacy samples with limited documentation on sample management. Novel means to understand...

Patient safety is the foundation of good care. In the last decades, a body of evidence has been accumulated to demonstrate that pre- and post-analytical phase are more vulnerable to errors in laboratory medicine than the analytical phase. Aims of the project of the IFCC Working Group on "Laboratory Errors and Patient Safety" (WG-LEPS) are: a) to develop a series of Quality Indicators (QIs), spe...

BACKGROUND We report our results for the systematic recording of all errors in a standard clinical laboratory over a 1-year period. METHODS Recording was performed using a commercial database program. All individuals in the laboratory were allowed to report errors. The testing processes were classified according to function, and errors were classified as pre-analytical, analytical, post-analy...

There is an increasing need for proper quality control tools in the pre-analytical phase of the molecular diagnostic workflow. The aim of the present study was to identify biomarkers for monitoring pre-analytical mRNA quality variations in two different types of blood collection tubes, K2EDTA (EDTA) tubes and PAXgene Blood RNA Tubes (PAXgene tubes). These tubes are extensively used both in the ...

Harmonization of clinical laboratory results means that results are comparable irrespective of the measurement procedure used and where or when a measurement was made. Harmonization of test results includes consideration of pre-analytical, analytical, and post-analytical aspects. Progress has been made in each of these aspects, but there is currently poor coordination of the effort among differ...

Group paging can simultaneously activate hundreds of user equipments (UEs) using a single paging message. Upon receiving the group paging message, all UEs should immediately transmit their paging response messages through the random access channels (RACHs). Simultaneous channel access from a huge group of UEs may result in severe collisions of the RACHs during a very short period of time. In th...

Background : Triglyceride examination was carried out in three stages, namely pre-analytical, analytical, and post-analytical stages. The pre-analytical stage of specimen processing is one the factors that can affect triglyceride levels. However, field are often for test oftenis not accordance with applicable regulations. Method This research a pre-experimental design intact Group Comparison. s...