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1.
Medisan ; 26(2)abr. 2022. ilus
Artigo em Espanhol | LILACS, CUMED | ID: biblio-1405794

RESUMO

El control interno de calidad en el laboratorio clínico es una actividad especializada que monitoriza la calidad de los procesos y resultados, a la vez que permite aceptar o rechazar las corridas analíticas de las diferentes determinaciones. A tales efectos, se presentan los elementos de una guía práctica incluida en un software, diseñada con el objetivo de perfeccionar el control interno de la calidad en dichos laboratorios, donde se definen los principios y conceptos claves del tema, los procedimientos y su secuencia, los requisitos de calidad, las reglas de control, los cálculos estadísticos, la interpretación de los resultados, así como algunos de los indicadores novedosos y necesarios para asegurar la calidad.


The internal control of quality in the clinical laboratory is a specialized activity that monitors the quality of the processes and results at the same time that it allows to accept or to reject the analytic runs on the different determinations. To such effects, the elements of a practical guide included in a software are presented, designed with the objective of perfecting the internal control of the quality in these laboratories, where the principles and key concepts of the topic, procedures and their sequence, requirements of quality, control rules, statistical calculations, the interpretation of the results are defined, as well as some of the novel and necessary indicators to assure the quality.


Assuntos
Gestão da Qualidade Total , Laboratórios Clínicos , Controle de Qualidade
2.
J Appl Behav Anal ; 53(1): 25-43, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-30734285

RESUMO

We conducted this study to determine if the efficiency of the functional analysis could be improved without detrimental effects on control. In Experiment 1, we reanalyzed functional analyses conducted for the problem behavior of 18 children. We analyzed rates of problem behavior during the first 5 min and first 3 min of the original 10-min sessions and evaluated if changes in the level of control over problem behavior by the programmed contingency were evident from the analyses of shorter session duration. In Experiment 2, we conducted 8 consecutive functional analyses with 3-min sessions to further evaluate the utility of brief session durations. We found that control over problem behavior was demonstrated when conducting functional analyses with sessions as brief as 3 min.


Assuntos
Comportamento Problema/psicologia , Autocontrole , Adolescente , Pesquisa Comportamental , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Fatores de Tempo
3.
Rev. Fac. Med. (Caracas) ; 32(1): 46-53, jun. 2009. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-631551

RESUMO

Debido a la variabilidad de resultados entre laboratorios en las determinaciones de hemoglobina, se debe promover la implantación de sistemas de garantía de la calidad para generar confianza en los resultados. A fin de aportar elementos para su establecimiento, se realizó una evaluación instrumental de espectrofotómetros y se preparó un lote de controles y calibradores de hemoglobina siguiendo protocolos internacionales. Después de elaborar el material, se monitoreó homogeneidad (CV calibrador: 0,33 por ciento, control: 0,38 por ciento) y estabilidad (CV calibrador: 0,13 por ciento, control: 0,90 por ciento). La evaluación instrumental demostró la condición óptima de los espectrofotómetros (exactitud de la longitud de onda 100 por ciento, inexactitud fotométrica 0,9 por ciento y 1,2 por ciento, CV precisión fotométrica 0,25 por ciento, respuesta lineal con K2Cr2O7) lo que permitió su empleo para asignar valores al material preparado, que fue útil para el control de la determinación de hemoglobina. Esto constituye un aporte al desempeño del laboratorio y contribuye a la emisión de resultados confiables


On account of the variability of results observed between laboratories in hemoglobin determinations, the installation of quality assurance systems should be promoted to generate confidence on laboratory results. In order to contribute with elements for the establishment of these systems we realized an instrumental evaluation of photometric equipment and prepared a regular lot of hemoglobin standards and controls following international protocols. After the elaboration, we monitored the homogeneity (VC standard: 0.33 percent, control: 0.38 percent) and stability (VC standard: 0.13 percent, control: 0.90 percent). The instrumental evaluation showed the optimal condition of the photometric equipment (wave length accuracy 100 percent, photometric inaccuracy 0.9 percent y 1.2 percent, VC photometric precision 0.25 percent, lineal response with K2Cr2O7), this allowed its employment for the value assignation of the material, that was useful for the daily practice of hemoglobin determination. This constitutes a contribution to the performance of clinical laboratory and contributes with the emission of reliable results


Assuntos
Calibragem , Controle de Qualidade/análise , Controle de Qualidade/métodos , Espectrofotômetros/métodos , Hemoglobinas/análise , Hematologia
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