نتایج جستجو برای: preanalytical error

تعداد نتایج: 254705  

2016
Manfred Dietel Lukas Bubendorf Anne-Marie C Dingemans Christophe Dooms Göran Elmberger Rosa Calero García Keith M Kerr Eric Lim Fernando López-Ríos Erik Thunnissen Paul E Van Schil Maximilian von Laffert

BACKGROUND There is currently no Europe-wide consensus on the appropriate preanalytical measures and workflow to optimise procedures for tissue-based molecular testing of non-small-cell lung cancer (NSCLC). To address this, a group of lung cancer experts (see list of authors) convened to discuss and propose standard operating procedures (SOPs) for NSCLC. METHODS Based on earlier meetings and ...

2017
Gabriel Lima-Oliveira Gian Cesare Guidi Andre Valpassos Pacifici Guimaraes Jose Abol Correa Giuseppe Lippi

BACKGROUND The multifaceted clinical laboratory process is divided in three essential phases: the preanalytical, analytical and postanalytical phase. Problems emerging from the preanalytical phase are responsible for more than 60% of laboratory errors. This report is aimed at highlighting and discussing nonconformity (e.g., nonstandardized procedures) in primary blood tube mixing immediately af...

2014
Sas Leen Van Laere Steven Dierick Anne Marie Duwel Valérie De Pauw Annemie Van Den Eynden Gert Van Dam Peter Dirix Luc Vermeulen Peter Lardon Filip

Although immunohistochemistry (IHC) is a widely used technique to classify tumors in ER-positive versus ER-negative ones, interlab variabilities can occur. This study aims to investigate the influences of preanalytical and analytical factors on IHC results. For this purpose, the different steps of the preparation of IHC sections and scoring procedures were compared between two participating lab...

2017
Lisanne F. van Dessel Nick Beije Jean C.A. Helmijr Silvia R. Vitale Jaco Kraan Maxime P. Look Ronald de Wit Stefan Sleijfer Maurice P.H.M. Jansen John W.M. Martens Martijn P. Lolkema

Circulating tumor DNA (ctDNA) has emerged as a potential new biomarker with diagnostic, predictive, and prognostic applications for various solid tumor types. Before beginning large prospective clinical trials to prove the added value of utilizing ctDNA in clinical practice, it is essential to investigate the effects of various preanalytical conditions on the quality of cell-free DNA (cfDNA) in...

Journal: :Clinical chemistry 2007
Armando Tripodi

BACKGROUND Lupus anticoagulants (LA) are a heterogeneous class of immunoglobulins. Persistent LA positivity is a risk factor for the occurrence and recurrence of venous/arterial thromboembolism and/or pregnancy morbidity and qualifies the patient for anticoagulation therapy. The laboratory diagnosis for LA that is used for crucial decision-making about the optimal duration of the therapy rests ...

Journal: :Clinical chemistry 2000
S Graves B Holman R A Felder

BACKGROUND Total laboratory automation (TLA) has been shown to increase laboratory efficiency and quality. However, modular automation is smaller, requires less initial capital, and requires less planning than TLA. We engineered and performed clinical trials on a modular robotic preanalytical workcell for coagulation analysis. METHODS Timing studies were used to quantify the efficiency of the...

Journal: :Clinica chimica acta; international journal of clinical chemistry 2011
Helen M Moore Andrea B Kelly Scott D Jewell Lisa M McShane Douglas P Clark Renata Greenspan Daniel F Hayes Pierre Hainaut Paula Kim Elizabeth A Mansfield Olga Potapova Peter Riegman Yaffa Rubinstein Edward Seijo Stella Somiari Peter Watson Heinz-Ulrich Weier Claire Zhu Jim Vaught

Human biospecimens are subjected to collection, processing, and storage that can significantly alter their molecular composition and consistency. These biospecimen preanalytical factors, in turn, influence experimental outcomes and the ability to reproduce scientific results. Currently, the extent and type of information specific to the biospecimen preanalytical conditions reported in scientifi...

Journal: :Clinical chemistry 1998
J Diaz M Fernandez-Arjona C Perandones E Serrano C Frau I Cortes A Luque L F Carbonell

References 1. Plebani M, Carraro P. Mistakes in a stat laboratory: types and frequency. Clin Chem 1997;43:1348–51. 2. Stuart J, Banfi G, Deom A, Narayanan S, Rabinovitch A. Major themes of the symposium. In: Proceedings of the second symposium: the impact of the pre-analytical phase of laboratory result. Oxford, UK: Becton Dickinson, 1996:5–9. 3. Hinckley CM. Defining the best quality-control s...

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