Blood Signature Profiles Generated By A Sonoclot Coagulation & Platelet Function Analyzer. The ACT, CR, and PF were the parameters measured on whole human blood samples (3.8% sodium citrate/blood, 1:10). Expected values for healthy adults are 1.67-2.58 min (ACT), 9-35 clot signal units/min (CR), and >1.5 (PF). Reference values for citrated blood using gbACT + KIT cuvettes for healthy populations may be different than reference values for specific populations. These blood signatures represent neutralization of C. atrox venom by Wyeth antivenom. A normal blood signature is represented by the graph labeled as “Saline Control”. The graph labeled “Venom Control” is a blood signature containing C. atrox venom, the graph labeled “Venom/Antivenom” is a blood signature with C. atrox venom and Wyeth antivenom mixture, and the graph labeled “Antivenom Control” contains Wyeth antivenom.