
En concepto de control de la calidad se ha expandido en los últimos años y actualmente se está sustituyendo por el término de garantía de la calidad como concepto más abarcador, que comprende todo el proceso de la actividad relacionada con el laboratorio clínico, desde que se genera la petición analítica hasta que el resultado llega a manos del solicitante. Estas prácticas se requieren para la acreditación de los laboratorios clínicos y servicios de transfusión, en la que la palabra clave es la documentación de los sistemas de aseguramiento de la calidad. En la hemostasia, la etapa pre-analítica es una etapa fundamental; de ella depende en gran medida el resultado final, la preparación adecuada de controles, así como el uso de calibradores para la determinación de la actividad de los factores individuales y la detección de inhibidores. La determinación del tiempo de protrombina (TP), de la relación normalizada internacional y del tiempo parcial de tromboplastina activado (TPTA), son determinaciones usuales en el control externo de la calidad (CEC), mientras que la determinación de la concentración de fibrinógeno, factor VIII coagulante, otros factores e inhibidores fisiológicos de la coagulación, se incluyen de forma más esporádica. Actualmente se están llevando a cabo programas internacionales para la estandarización de varias pruebas de laboratorio. Para implementar la estandarización de las pruebas y materiales usados en la hemostasia, varias instituciones han decidido dirigir sus esfuerzos para lograr sistemas comunes de referenciaThe concept of quality control has extended in the last few years and nowadays, it is being replaced by the term quality assurance as a more comprehensive concept that comprises the whole process of the activity related to the clinical lab, from the moment the analytical request is made up to the reception of the final result by the requester. This practice is required for accreditation of clinical labs and blood transfusion services in which the key word is the documentation of the quality assurance systems. In hemostasia, the pre-clinical phase is a fundamental stage since the final result, the adequate preparation of controls and the use of gages for determining the activity of individual factors and the detection of inhibitors largely depend on it. The determination of prothrombin time, of the international standardized relation and of the activated partial thromboplastin time are usual determinations in the External Quality Control whereas the estimation of fibrinogen concentration, the coagulating factor VIII, other factors and physiological inhibitors of coagulation are sporadically included. At present, international programs for the standardization of several lab tests are being carried out. To implement the standardization of tests and materials used in hemostasia, a number of institutions have decided to aim their efforts to achieve common reference systems
CONTROL DE CALIDAD, TESTS DE COAGULACION SANGUINEA, QUALITY CONTROL, Diseases of the blood and blood-forming organs, RC633-647.5, Immunologic diseases. Allergy, RC581-607, TECNICAS DE LABORATORIO CLINICO, CLINICAL LABORATORY TECHNIQUES, BLOOD COAGULATION TESTS
CONTROL DE CALIDAD, TESTS DE COAGULACION SANGUINEA, QUALITY CONTROL, Diseases of the blood and blood-forming organs, RC633-647.5, Immunologic diseases. Allergy, RC581-607, TECNICAS DE LABORATORIO CLINICO, CLINICAL LABORATORY TECHNIQUES, BLOOD COAGULATION TESTS
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