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Updated: Apr 25, 2026

Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay
Published on: September 9, 2012
Four-factor prothrombin complex concentrate versus plasma for urgent vitamin K antagonist reversal: new evidence
1Division of Transfusion Medicine and Hemostasis, Department of Pathology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-9234, USA.
Abstract:
Vitamin K antagonist (VKA) therapy is a mainstay of treatment for patients at risk of thromboembolic events. Despite widespread use, a major limitation of VKA therapy is the substantial risk of serious bleeding complications, which often require rapid reversal of anticoagulation. A recent randomized multicenter comparison between a 4-factor prothrombin complex concentrate (4F-PCC) and plasma in patients with acute major bleeding has provided important new evidence of the benefit of 4F-PCC over plasma for urgent VKA reversal.
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