avaliação do pool de plasma caseiro como controle normal para o tempo de tromboplastina parcial ativada (ttp) evaluation if in-house preparations of polled plasma can be used as a normal control of partial thromboplastin time (ptt)
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2011
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Abstract
INTRODUÇÃO: A utilização correta de um plasma-controle para a comparação com o plasma do paciente nos testes de coagulação é fundamental para a garantia de um resultado seguro dessas provas laboratoriais. OBJETIVO: O presente estudo analisou a viabilidade do uso de um pool de plasma caseiro, realizado com cinco (P5) e 20 (P20) amostras a partir de pacientes normais, para ser utilizado como controle normal do tempo de tromboplastina parcial (TTP). MATERIAL E MÉTODO: Os dois pools de plasma caseiro foram analisados em relação a um controle normal comercial (AP). Foram 10 dias de experimento e a cada dia os dois pools caseiro eram feitos. Para cada dia foi feito o TTP de P5, P20 e AP. Todos os pacientes com solicitação de TTP, em cada dia do experimento, tiveram a relação de tempos (R) determinada frente a P5, P20 e AP. As ferramentas estatísticas utilizadas foram média (X), análise de variância e teste de Tukey. RESULTADOS: A análise estatística demonstrou que os valores de TTP são significativamente diferentes entre AP e P5 e entre AP e P20, mas não há diferença significativa entre P5 e P20. Quando a relação de tempos foi analisada, não houve diferença significativa entre AP, P5 e P20. CONCLUSÃO: O estudo demonstrou que pode ser utilizado como controle normal um pool de plasma caseiro, feito a partir de cinco ou 20 amostras.
INTRODUCTION: Proper utilization of plasma control for comparison with the plasma of patients with coagulation tests is critical to ensure a safe outcome of these laboratory tests. OBJECTIVE: The purpose of this work was to know if in-house preparations of polled plasma can be used as a normal control of partial thromboplastin time (PTT). MATERIAL AND METHOD: We make two polled plasma, one with five (P5) samples and another with 20 (P20) samples, both of them from normal patients. Both pooled plasma were analyzed in comparison with a commercial lyophilized control (AP). The experiment was performed in 10 days, and P5 and P20 were made daily. At each day PTT was performed for P5, P20 and AP. All patients who asked for TTP, in each day of this experience, got a time relation (R) determined by a P5, P20 e AP. Tukey test was used as statistical analysis. RESULTS: Statistically significant differences were detected among the PTT for AP and P5, AP and P20, but no difference between P5 and P20 was observed. When the time relations were tested, there were no significant difference, among AP, P5, and P20. CONCLUSION: We found that in-house preparations of polled plasma (P5 and P20) can be used as a normal control of PTT.
INTRODUCTION: Proper utilization of plasma control for comparison with the plasma of patients with coagulation tests is critical to ensure a safe outcome of these laboratory tests. OBJECTIVE: The purpose of this work was to know if in-house preparations of polled plasma can be used as a normal control of partial thromboplastin time (PTT). MATERIAL AND METHOD: We make two polled plasma, one with five (P5) samples and another with 20 (P20) samples, both of them from normal patients. Both pooled plasma were analyzed in comparison with a commercial lyophilized control (AP). The experiment was performed in 10 days, and P5 and P20 were made daily. At each day PTT was performed for P5, P20 and AP. All patients who asked for TTP, in each day of this experience, got a time relation (R) determined by a P5, P20 e AP. Tukey test was used as statistical analysis. RESULTS: Statistically significant differences were detected among the PTT for AP and P5, AP and P20, but no difference between P5 and P20 was observed. When the time relations were tested, there were no significant difference, among AP, P5, and P20. CONCLUSION: We found that in-house preparations of polled plasma (P5 and P20) can be used as a normal control of PTT.
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henneberg2011jornalavaliao
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| Authors | ;Railson Henneberg;Paulo Henrique da Silva;Rogério Luiz Kopp;Aguinaldo José do Nascimento;Janaína Risczik Arruda Correa;Fernanda Dal Molin |
| Journal | industrial and engineering chemistry research |
| Year | 2011 |
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