Method of determining levels of extrinsic and intrinsic clotting factors and protein C
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United States of America Patent
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Dec 8, 1992
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N/A
app pub date -
Dec 19, 1989
filing date -
Dec 19, 1989
priority date (Note) -
Expired
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Abstract
A method of determining levels of extrinsic and intrinsic clotting factors and protein C based upon the reaction rate of the observed clot formation and the first derivative of the reaction rate of observed clot formation is provided. In accordance with the teachings of the invention, the reaction rate of the observed clot formation in a prothrombin time test or an activated partial thromboplastin time assay is determined for both test and normal plasma samples and the reaction rates compared. In another embodiment, the first derivative of the reaction rate of the observed clot formation is determined and the results compared.
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