Objective: To identify the perceptions of nurses in a general hospital about managerial activities for user assistance. Methods: A qualitative, exploratory and descriptive study. The research subjects were 13 nurses from a philanthropic hospital. Data collection was conducted by means of semi-structured interviews, during the period of January and February, 2010. For interpretation of the results, content analysis was used. Results:The management activities highlighted in the process of nursing work, and that resulted in the direct assistance to the user, have been delegated to other professionals in the team. Conclusion: The nurses understand the importance of linking clinical and managerial actions, the latter being seen as complementary to care. Keywords: Nursing care; Perception; Health services administration; Health management; Nurse`s role RESUMOObjetivo: Identificar a percepção de enfermeiros de um hospital geral sobre as atividades gerenciais na assistência aos usuários. Métodos: Estudo de natureza qualitativa, exploratória descritiva. Os sujeitos da pesquisa foram 13 enfermeiros de um hospital filantrópico. A coleta de dados foi realizada por meio de entrevista semiestruturada, no período de janeiro e fevereiro de 2010. No tratamento dos resultados utilizou--se a análise do conteúdo. Resultados: As atividades gerenciais sobressaíram no processo de trabalho do enfermeiro e, que decorrente deste fator, a assistência direta ao usuário foi delegada a outros profissionais da equipe. Conclusão: Os enfermeiros compreendem a importância de articular as ações assistenciais e gerenciais, sendo estas últimas vistas como complementaridade do cuidado. Descritores: Cuidados de enfermagem; Percepção; Administração de serviços de saúde; Gestão em saúde; Papel do profissional de saúde RESUMEN Objetivo: Identificar la percepción de enfermeros de un hospital general sobre las actividades gerenciales en la asistencia a los usuarios. Mé-todos: Se trata de un estudio de naturaleza cualitativa, exploratoria descriptiva. Los sujetos de la investigación fueron 13 enfermeros de un hospital filantrópico.La recolección de los datos fue realizada por medio de entrevista semiestructurada, en el período de enero y febrero del 2010. Para el tratamiento de los resultados se utilizó el análisis de contenido. Resultados: Las actividades gerenciales sobresalieron en el proceso de trabajo del enfermero y, que en consecuencia de este factor, la asistencia directa al usuario fue delegada a otros profesionales del equipo. Conclusión: Los enfermeros comprenden la importancia de articular las acciones asistenciales y gerenciales, siendo estas últimas vistas como complementariedad del cuidado. Descriptores: Atención de enfermería; Percepción; Administración de los serviços de salud; Gestión en salud; Rol de la enfermera

Patients undergoing cardiac surgery are prone to excessive postoperative bleeding. In addition, it is known that the passage of blood through the cardiopulmonary bypass (CPB) circuit triggers the release of inflammatory mediators, resulting in a series of changes in hemostasis.Other situations such as thrombocytopenia, disseminated intravascular coagulation, and liver failure may also influence the occurrence of acute anemia, which should be corrected immediately. 1,2 However, the indiscriminate use of blood products in cardiac surgery has been associated with increased risk of infection, increased need for mechanical ventilation, increased organ failure, longer length of hospital stay, and higher mortality rates. [3][4][5][6] Although blood transfusion may become imperative for the management of postoperative cardiac surgery patients, several efforts have been made to restrict and standardize transfusion practice and improve outcomes for patients. [7][8][9] Much has been discussed about the optimal time for transfusion, although there is no global standardization of hematocrit and hemoglobin values, but only a consensus on clinical criteria. In practice, efforts have focused on maintaining hemoglobin values between 7 and

Introduction: Caffeinated drinks are used for improve performance. Animal models represent investigational strategy that circumvents most of the drawbacks of research in humans, including motivational factors and the placebo effect. No animal model that could test whether different forms of administering caffeine affect exercise propensity was found in the literature.

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