| 21. | Patients with von Willebrand disease typically display a normal prothrombin time and a variable prolongation of partial thromboplastin time.
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| 22. | Factor Va also decreases the Km of the reaction by enhancing the binding of prothrombin to the prothrombinase complex.
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| 23. | For a prolonged prothrombin time, vitamin K or fresh frozen plasma may be administered to reduce bleeding risk.
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| 24. | Therefore TEM is not meant to replace laboratory assays such as prothrombin time ( PT ) or factor assays.
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| 25. | Many analysers are capable of measuring a " derived fibrinogen " level from the graph of the Prothrombin time clot.
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| 26. | Traditional models of coagulation developed in the 1960s envisaged two separate cascades, the extrinsic prothrombin ( Factor II ).
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| 27. | Spontaneous specific inhibitors against clotting factors occur ( i . e . not in prothrombin complex concentrates to stop the bleeding.
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| 28. | Prothrombin activator is released in the body by a cascade of chemical reactions in response to damage in a blood vessel.
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| 29. | Seratrodast has no effect on prothrombin time and activated partial thromboplastin time, thus ruling out any action on blood coagulation cascade.
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| 30. | A check can exclude deficiencies in iron, calcium, prothrombin time, vitamin B-12, vitamin D, and thiamine.
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