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Russell viper venom clotting time

Pronunciation: rus'el

Definition: a clotting time determination performed on citrated platelet-poor plasma using Russell viper venom as an activating agent. This allows activation of factor X directly without the need for other coagulation factors and is used to confirm factor X defects.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.