Biokemiske faktorer, som kan være tegn på arvelig disposition eller erhvervet disposition for vene - eller arterietrombose, så som aktiveret C- protein (APC -) modstand, hyper homocysteinæmia, antitrombin- III mangel, C- protein mangel, S- protein mangel, antifosfolipid- antistoffer (anticardiolipin - antistoffer, lupus- antikoagulant).
Biochemical factors that may be indicative of hereditary or acquired predisposition for venous or arterial thrombosis include Activated Protein C (APC) resistance, hyper homocysteinaemia, antithrombin-III deficiency, protein C deficiency, protein S deficiency, antiphospholipid antibodies (anticardiolipin antibodies, lupus anticoagulant).