factor Va

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Related to factor Va: proaccelerin, Tissue factor, Factor viiia

fac·tor Va

in the clotting of blood, accelerin.
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References in periodicals archive ?
(4,20) In normal patients, the activated protein C degrades the patient's factor Va and VIIIa, and on that basis, prolongs the PTT.
Other authors have reported that aPL antibodies might inhibit PL-dependent reactivity of the activated protein C (APC) pathway, such as activation of protein C by thrombin/thrombomodulin or degradation of factor Va by activated protein C/protein S (1,23).
Activated factor V (factor Va) is a cofactor protein in the prothrombinase complex that, together with the serine protease factor Xa, is responsible for conversion of prothrombin to the active enzyme thrombin.