Table 1.

Various rotational thromboelastometry tests with different reagents

ROTEM tests	Reagents used	Description
EXTEM	Tissue factor activator	Coagulation is activated by small amount of tissue factor to monitor coagulation via extrinsic pathway
INTEM	Ellagicacid/phospholipid activator	Coagulation is activated by contact phase to monitor coagulation via intrinsic pathway
HEPTEM	Heparinase in combination with INTEM	Comparison of HEPTEM with INTEM parameters can help in detection of heparinrelated coagulation disturbances
FIBTEM	Cytochalasin D in combination with EXTEM	Coagulation is activated as in EXTEM after neglecting platelet contribution to the clot firmness
APTEM	Aprotinin, fibrinolysis inhibitor in combination with EXTEM	Coagulation is activated as in EXTEM to monitor the clot firmness after blocking hyperfibrinolysis by aprotinin
ECATEM	Ecarin (prothrombin activator)	Diagnose direct thrombin inhibitor
NATEM	Activated by recalcification only	Sensitive to detect endogenous activators like tissue factor expression on monocytes cells in sepsis, extracorporeal device use, cirrhosis

ROTEM: Rotational thromboelastometry