Prothrombin Deficient Plasma
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چکیده
ASSAY PRINCIPLE: The method is a clotting assay where all the clotting factors are present (constant and in excess, brought by the deficient plasma), excepted for FII, which is brought by the diluted tested plasma, and clotting is triggered with calcium thromboplastin. FII is the limiting factor and clotting time is inversely proportional to the concentration of FII. There is an inverse linear relationship, on a bilogarythmic graph paper, between the FII concentration and the corresponding clotting time.
منابع مشابه
Nature of the blood coagulation mechanisms in SPCA plasma.
Derivatives of purified prothrombin and substances required for the formation of a derivative have been studied in connection with SPCA deficient plasma. The deficiency can be corrected in vitro with prothrombin derivatives. It is concluded that the SPCA patient cannot convert prothrombin to autoprothrombin and thrombin in the same way as a normal individual, and that the precursor of SPCA is p...
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