Hyperfibrinolysis contributes to life-threatening canine bleeding disorders, including consumptive coagulopathies of Angiostrongylus vasorum, 1 heatstroke, 2 and neoplasia associated disseminated intravascular coagulopathy. 3 Accelerated fibrinogen consumption can produce hypofibrinogenemia, which could indicate a poor prognosis 2 and the need for fresh frozen plasma 3 or cryoprecipitate transfusions. 4 Elevated fibrinogen is also a valuable indicator of inflammation 5 and has been linked to the risk of venous