43 resultados para source encoder identification
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Dissertao de Mestrado Integrado em Engenharia Electrotcnica e Computadores
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Dissertao para obteno do Grau de Doutor em Biologia
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Dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Geospatial Technologies
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics
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Dissertao para a obteno do grau de doutor em Biologia pelo Instituto de Tecnologia Qumica e Biolgica. Universidade Nova de Lisboa.
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Dissertation presented to obtain the Ph.D degree in Biology
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Dissertao para obteno do Grau de Mestre em Engenharia Electrotcnica e de Computadores
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Dissertation presented to obtain the Ph.D degree in Biochemistry
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Dissertation for the Master Degree in Technology and Food Security
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Dissertao para obteno do Grau de Mestre em Engenharia Fsica
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Doctoral dissertation for Ph.D. degree in Sustainable Chemistry
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RESUMO: As Anlises Clnicas so um precioso elemento entre os meios complementares de diagnstico e teraputica permitindo uma enorme panplia de informaes sobre o estado de sade de determinado utente. O objetivo do laboratrio fornecer informao analtica sobre as amostras biolgicas, sendo esta caracterizada pela sua fiabilidade, relevncia e facultada em tempo til. Assim, tratando-se de sade, e mediante o propsito do laboratrio, notria a sua importncia, bem como, a dos fatores associados para o cumprimento do mesmo. O bom desenrolar do ciclo laboratorial, compreendido pelas fases pr-analtica, analtica e ps-analtica crucial para que o objetivo do laboratrio seja cumprido com rigor e rapidez. O presente trabalho O Erro na Fase Pr-Analtica: Amostras No Conformes versus Procedimentos, enquadrado no mestrado de Qualidade e Organizao no Laboratrio de Anlises Clnicas, pretendeu enfatizar a importncia da fase pr- analtica, sendo ela apontada como a primordial em erros que acabam por atrasar a sada de resultados ou por permitir que os mesmos no sejam fidedignos como se deseja, podendo acarretar falsos diagnsticos e decises clnicas erradas. Esta fase, iniciada no pedido mdico e finalizada com a chegada das amostras biolgicas ao laboratrio est entregue a uma diversidade de procedimentos que acarretam, por si s, uma grande diversidade de intervenientes, para alm de uma variabilidade de factores que influenciam a amostra e seus resultados. Estes fatores, que podem alterar de algum modo a veracidade dos resultados analticos, devem ser identificados e tidos em considerao para que estejamos convitos que os resultados auxiliam diagnsticos precisos e uma avaliao correta do estado do utente. As colheitas que por quaisquer divergncias no originam amostras que cumpram o objectivo da sua recolha, no estando por isso em conformidade com o pretendido, constituem uma importante fonte de erro para esta fase pr-analtica. Neste estudo foram consultados os dados relativos a amostras de sangue e urina no conformes detetadas no laboratrio, em estudo, durante o 1 trimestre de 2012, para permitir conhecer o tipo de falhas que acontecem e a sua frequncia. Aos Tcnicos de Anlises Clnicas, colaboradores do laboratrio, foi-lhes pedido que respondessem a um questionrio sobre os seus procedimentos quotidianos e constitussem, assim, a populao desta 2 parte do projeto. Preenchido e devolvido de forma annima, este questionrio pretendeu conhecer os procedimentos na tarefa de executar colheitas e, hipoteticamente, confront-los com as amostras no conformes verificadas. No 1semestre de 2012 e num total de 25319 utentes registaram-se 146 colheitas que necessitaram de repetio por se verificarem no conformes. A amostra no colhida foi a no conformidade mais frequente (50%) versus a m identificao que registou somente 1 acontecimento. Houve ainda no conformidades que no se registaram como preparao inadequada e amostra mal acondicionada. Os tcnicos revelaram-se profissionais competentes, conhecedores das tarefas a desempenhar e preocupados em execut-las com qualidade. Eliminar o erro no estar, seguramente, ao nosso alcance porm admitir a sua presena, detet-lo e avaliar a sua frequncia far com que possamos diminuir a sua existncia e melhorar a qualidade na fase pr-analtica, atribuindo-lhe a relevncia que desempenha no processo laboratorial.-----------ABSTRACT:Clinical analyses are a precious element among diagnostic and therapeutic tests as they allow an enormous variety of information on the state of health of a user. The aim of the laboratory is to supply reliable, relevant and timely analytical information on biological samples. In health-related matters, in accordance with the objective of the laboratory, their importance is vital, as is the assurance that all the tools are in place for the fulfillment of its purpose. A good laboratory cycle, which includes the pre-analytical, analytical and post-analytical phases, is crucial in fulfilling the laboratorys mission rapidly and efficiently. The present work - "Error in the pre-analytical phase: non-compliant samples versus procedures, as part of the Masters in Quality and Organization in the Clinical Analyses Laboratory, wishes to emphasize the importance of the pre-analytical phase, as the phase containing most errors which eventually lead to delays in the issue of results, or the one which enables those results not to be as reliable as desired, which can lead to false diagnosis and wrong clinical decisions. This phase, which starts with the medical request and ends with the arrival of the biological samples to the laboratory, entails a variety of procedures, which require the intervention of different players, not to mention a great number of factors, which influence the sample and the results. These factors, capable of somehow altering the truth of the analytical results, must be identified and taken into consideration so that we may ensure that the results help to make precise diagnoses and a correct evaluation of the users condition. Those collections which, due to any type of differences, do not originate samples capable of fulfilling their purpose, and are therefore not compliant with the objective, constitute an important source of error in this pre-analytical phase. In the present study, we consulted data from non-compliant blood and urine samples, detected at the laboratory during the 1st quarter of 2012, to find out the type of faults that happen and their frequency. The clinical analysis technicians working at the laboratory were asked to fill out a questionnaire regarding their daily procedures, forming in this way the population for this second part of the project. Completed and returned anonymously, this questionnaire intended to investigate the procedures for collections and, hypothetically, confront them with the verified non-compliant samples. In the first semester of 2012, and out of a total of 25319 users, 146 collections had to be repeated due to non-compliance. The uncollected sample was the most frequent non-compliance (>50%) versus incorrect identification which had only one occurrence. There were also unregistered non-compliance issues such as inadequate preparation and inappropriately packaged sample. The technicians proved to be competent professionals, with knowledge of the tasks they have to perform and eager to carry them out efficiently. We will certainly not be able to eliminate error, but recognizing its presence, detecting it and evaluating its frequency will help to decrease its occurrence and improve quality in the pre-analytical phase, giving it the relevance it has within the laboratory process.
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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA School of Business and Economics
