A V Kartoshkina

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A standard assay procedure for estimating antithrombin III activity was derived from the Abildgaard technique as follows: 1) to decrease errors at the preanalytical stage, by using preliminarily defibrinated lyophilized plasma-calibrator and 2) to increase measurement accuracy, by using the concentration of a fibrinogen preparation and simplifying the(More)
A method was elaborated enabling an isolation of a stable and highly active thrombin to be used in determining the thrombin time and fibrinogen concentration in plasma. The stability of the thus obtained preparations was studied, which showed no changes in the activity of their liquid variations for as long as 28 days at 2-8 degrees C.
The Clauss method was recommended by the WHO to measure plasma fibrinogen levels. The purpose of this study was to assess the application of test systems made by the RENAM Research-and-Production Association (Moscow) on different types of clinical laboratory analyzers to measure fibrinogen by the Clauss method. The calibration line is shown to be of major(More)
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