Table 1.
Assay | Investigated Area | Used Reagent |
---|---|---|
INTEM | Intrinsic coagulation pathway FXII, FXI, FIX, FVIII, FX, FV, FII, FI, fibrin, platelets, fibrinolysis |
partial thromboplastin, ellagic acid |
EXTEM | Extrinsic coagulation pathway FVII, FX, FV, FII, FI, fibrin, platelets, fibrinolysis |
recombinant tissue factor, phospholipids |
FIBTEM | Contribution of fibrinogen to the clot formation after platelet inactivation | recalcification and platelet inhibitor cytochalasin D |
APTEM | Inhibition of fibrinolysis, comparison to EXTEM can indicate/detect hyperfibrinolysis | recalcification and fibrinolysis inhibitor aprotinin/tranexamic acid |
HEPTEM | Heparin inactivation in heparinized patients | recalcification, heparinase I * |
Legend: F—factor. * heparinase I (neutralase I) is an enzyme that specifically degrades heparin by catalyzing the cleavage of the saccharide bonds found in the heparin molecule.