Figure 2From: Pharmacokinetic model of unfractionated heparin during and after cardiopulmonary bypass in cardiac surgery Anti-F IIa activity vs . Time. A, Anti-FIIa activity vs. time for blood samples obtained during CPB. B, anti-FIIa activity vs. time for blood samples obtained no less than24 h after the end of CPB (n = 32). In both plots, the time at the start of CPB was set to 0.Back to article page