Figure 4From: Global assays and the management of oral anticoagulation Influence of TF concentration on the thrombographic assessment of oral anticagulation. Thrombin generation with VKA anticoagulated plasma (George King Biomedical Inc, Overland Park, Kansas, USA ) and rivaroxaban-spiked normal plasma was performed with triggering reagent containing 4 μM phospholipids and 1, 5, and 20 pM TF as described [68]. At decreasing TF, thrombin generation decreases; i.e. longer lag time and decreased peak height and AUC. At a TF concentration of 1 pM, thrombin generation in VKA- and rivaroxaban anticoagulated plasma is unnoticed at high anticoagulant levels, while detectable at 5 and 20 pM. Reversal of oral anticoagulation can be achieved, e.g., by PCC (see Figure 6).Back to article page