نتایج جستجو برای: preanalytical
تعداد نتایج: 755 فیلتر نتایج به سال:
Clinical trials and epidemiologic and most types of clinical research include the acquisition of biological samples to be analyzed either immediately after collection or in the future for biomarkers related to the study hypotheses. Tested biomarkers include those used to monitor subjects’ health and to detect harmful side effects (e.g., liver and kidney function tests) or to follow the impact o...
Research of new diagnosis or prognosis biomarkers is a major challenge for the management of patients with complex pathologies like cancer. Clinical proteomics is one of the recent approaches to identify these biomarkers in biological fluids. Over the last five years, many problems related to the variability and the quality control of these analyses have been observed. This was notably related ...
Evaluating the kinetics of cell-free DNA (cfDNA) in the blood of cancer patients could be a strong auxiliary component to the molecular characterization of cfDNA, but its potential clinical significance is obscured by the absence of an analytical consensus. To utilize quantitative cfDNA assessment with confidence, it is crucial that the preanalytical phase is standardized. In a previous publica...
The preanalytical phase, encompassing at large all those activities necessary to obtain a suitable biological specimen, is an essential part of the total testing process [1]. Several lines of evidence attest that uncertainties, poorly standardized and even misleading preanalytical procedures produce the vast majority of problems in diagnostic testing, wherein up to 60%–70% of laboratory errors ...
INTRODUCTION The educational program for health care personnel is important for reducing preanalytical errors and improving quality of laboratory test results. The aim of our study was to assess the level of knowledge on preanalytical phase in population of biomedicine students through a cross-sectional survey. MATERIALS AND METHODS A survey was sent to students on penultimate and final year ...
Remarkable technical advances have permitted analytical measurement of thyrotropin (TSH) and estimates of free thyroxine (FT4) with precision, accuracy, and favorable economics. Combined with an increased appreciation of the key insights into the pituitary-thyroid relation, preanalytical considerations infrequently introduce confounding variables. In reviewing thyroid data, preanalytical consid...
The cobas® Liat® Influenza A/B and respiratory syncytial virus assay was tested on nasopharyngeal aspirates. resolution of invalid samples performed using a preanalytical step. can be used aspirates with processing step, slightly diminished performances in detecting but not for influenza.
Background: The complexity of the preanalytical (PA) phase has precluded standardisation of PA processes, despite its impact on sample quality, laboratory effi ciency, or patient & healthcare worker safety. The BD Laboratory Consulting Services™ Preanalytical Review audits PA procedures and practices in hospitals in diff erent countries. Processes were assessed from storage of blood collection ...
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