Blood Coagulation Tests
Mostrando 13-24 de 27 artigos, teses e dissertações.
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13. Contribuição ao estudo da ação in vitro do veneno da aranha marrom, Loxosceles gaucho, sobre plaquetas humanas e de coelho. Participação das plaquetas na dermonecrose induzida experimentalmente pelo veneno loxoscélico em coelhos / Contribution to the study of the in vitro action induced by the venom of the brown spider, Loxosceles gaucho, on human and rabbit platelets. Platelet participation in the dermonecrotic lesion experimentally induced in rabbits by the loxoscelic venom
Venoms from Loxosceles spiders exhibit a wide range of activities on different cells, tissues and systems, being specially evident their ability to cause a dermonecrotic lesion. In a previous paper, we showed that Loxosceles gaucho spider venom induces intense thrombocytopenia in rabbits. Thus, in the present study, we firstly aimed to evaluate the in vitro
Publicado em: 2007
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14. Avaliação in vitro e ex vivo de oxigenador de membrana de baixa resistência para o uso ECMO sem auxílio de bomba.
Introduction: Extracorporeal pulmonary assistance has been proposed as an invasive alternative to the conventional treatment when adequate oxygenation becomes impossible by mechanical ventilation. Extracorporeal membrane oxygenation (ECMO) attained using assisted circulation may cause hemolysis, coagulation disorders, an inflammatory response and complicatio
Publicado em: 2006
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15. "Estudo comparativo do tempo de sangramento avaliado pelo método convencional de Ivy e do tempo de sangramento da mucosa bucal" / Comparative study of convencional Ivy´s bleedind test and the oral mucosa bleeding time
O ato cirúrgico sempre deve ser precedido de uma avaliação das condições de saúde local e sistêmica do paciente, sendo os exames complementares, o subsídio utilizado para avaliar e confirmar as suspeitas clínicas e hipóteses diagnósticas, adequando o paciente à terapêutica proposta. A literatura é ampla no que diz respeito a testes de hemostasi
Publicado em: 2006
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16. Coagulation tests on capillary blood: A screening procedure for use in small children
A method of investigating the coagulation mechanism is described.
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17. How to minimize blood loss during liver surgery in patients with cirrhosis
Patients with liver disease frequently have substantial changes in their haemostatic system. This is reflected in abnormal test results on routine coagulation screening assays such as the prothrombin time (PT), activated thromboplastin time (APTT) and platelet count. Traditionally, attempts were made to correct abnormalities in the haemostatic system as meas
Blackwell Publishing Ltd.
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18. Effect of an evacuated blood collection system on coagulation screening tests.
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19. Influence of Cephalosporin Antibiotics on Blood Coagulation and Platelet Function
Administration of cephalothin to normal volunteers in maximal doses of 300 mg/kg per day resulted in a combined defect of platelet function and blood coagulation. No such abnormalities were evident after infusion of cefazolin or cephapirin at a maximal dosage of 200 mg/kg per day. The observed thrombocytopathy was similar to but less severe than that induced
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20. Disseminated intravascular coagulation and head injury.
Blood coagulation tests were performed on admission to the hospital and on consecutive days after severe and moderate head injury in 34 patients. Platelet counts and fibrinogen were normal at admission and raised thereafter. The partial thromboplastin time was shortened at admission and lengthened in the following days. Fibrinolytic activity was enhanced at
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21. Point-of-Care Testing of Hemostasis in Cardiac Surgery
An excessive perioperative blood loss, that requires transfusion of blood products, sometimes occurs in patients undergoing cardiopulmonary bypass for cardiac surgery. Blood loss and transfusion requirements in these patients may be reduced with a better control of heparin treatment and its reversal. Blood component administration in patients with excessive
BioMed Central.
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22. Predisposition to thrombosis not reflected by the blood coagulogram
Experiments on rats indicate that thrombosis of large veins can develop while blood coagulability is decreased. Hence, coagulation tests have only a limited value in predicting a thrombotic tendency, although they do show characteristic changes during the formation of thrombi.
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23. Laboratory evaluation of a bleeding patient.
Most causes of abnormal bleeding can be determined from a complete blood count including platelet count and bleeding, prothrombin, activated partial thromboplastin, and thrombin times. Occasionally, further evaluation is necessary, such as tests of factor XIII function, fibrinolysis, and vascular integrity. Possible diagnoses include disseminated intravascul
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24. Physicochemical inactivation of Lassa, Ebola, and Marburg viruses and effect on clinical laboratory analyses.
Clinical specimens from patients infected with Lassa, Ebola, or Marburg virus may present a serious biohazard to laboratory workers. We have examined the effects of heat, alteration of pH, and gamma radiation on these viruses in human blood and on the electrolytes, enzymes, and coagulation factors measured in laboratory tests that are important in the care o