نتایج جستجو برای: preanalytical
تعداد نتایج: 755 فیلتر نتایج به سال:
INTRODUCTION Preanalytical control and monitoring continue to be an important issue for clinical laboratory professionals. The aim of the study was to evaluate a monitoring system of preanalytical errors regarding not suitable samples for analysis, based on different indicators; to compare such indicators in different phlebotomy centres; and finally to evaluate a single synthetic preanalytical ...
BACKGROUND We sought a model to estimate preanalytical uncertainty of blood samples collected and processed by using optimal procedures. METHODS Optimal preanalytical handling of blood samples included use of a loosely fastened tourniquet, wide bore needles, recommended clotting time and centrifugation speed, and minimal storage before analysis. Blood was collected from each arm of 20 volunte...
background: quality assurance in the hematology laboratory is a must to ensure laboratory users of reliable test results with high degree of precision and accuracy. even after so many advances in hematology laboratory practice, pre-analytical errors remain a challenge for practicing pathologists. this study was undertaken with an objective to evaluate the types and frequency of preanalytical er...
Preanalytical phase is the most vulnerable part of the total testing process and is considered to be among the greatest challenges to the laboratory professionals. However, preanalytical activities, management of unsuitable specimens and reporting policies are not fully standardized, nor harmonized worldwide. Several standards related to blood sampling and sample transportation and handling are...
The lack of readily available biomarkers is a significant hindrance toward progressing to effective therapeutic and preventative strategies for Alzheimer's disease (AD). Blood-based biomarkers have potential to overcome access and cost barriers and greatly facilitate advanced neuroimaging and cerebrospinal fluid biomarker approaches. Despite the fact that preanalytical processing is the largest...
Laboratory investigation plays an important role in diabetic care. Laboratory results are required for diagnosis, monitoring and followi up of the diabetic patient. To have a good diabetic management, accurate and reliable laboratory tests are required. Based on the principle of laboratory medicine, quality management covering all phases of laboratory analysis; preanalytical, analytical and pos...
INTRODUCTION The aim of this paper is to present results of first two years of preanalytical external quality assessment (EQA) in Croatia. MATERIALS AND METHODS This paper summarizes results from 6 rounds of preanalytical EQA during 2014-2016 in 161-175 Croatian laboratories (number ranged between cycles). EQA was designed as an online survey of the compliance with National recommendations fo...
OBJECTIVES To determine the preanalytical quality of serum and plasma by monitoring the time-dependent ex vivo decay of a synthetic reporter peptide (RP) with liquid chromatography/mass spectrometry (LC/MS). METHODS Serum and plasma specimens were spiked with the RP and proteolytic fragments were monitored with LC/MS at different preanalytical time points ranging from 2 to 24 hours after bloo...
• Preanalytical variables influence the quality and quantity of isolated cfDNA. This paper compares preanalytical aspects published for cfDNA analysis. Blood drawing, collection tube, centrifugation, storage isolation are crucial. The analysis circulating cell free DNA is an important tool tumor resistance, heterogeneity, detection minimal residual disease allograft rejection in kidney or heart...
BACKGROUND Point-of-care testing (POCT) systems enable a wide range of tests to be rapidly performed at the bedside and have attracted increasing interest in the intensive care unit (ICU). However, previous studies comparing the concordance of POCT with central laboratory testing have reported divergent findings. Most reported studies on POCT reliability have focused on analyzer performance rat...
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