Table 1 TEG^® and ROTEM^® parameters and their reference values (adapted from Luddington 2005, and Ganter MT, Hofer CK 2008).

Clotting time (time to 2mm amplitude)

r (reaction time)

WB: 4-8min

Cit, kaolin : 3-8min

CT (clotting time)

Cit, EXTEM: 42-74s

Cit, INTEM: 137-246s

Clot kinetics (time from 2 to 20mm)

k (kinetics)

WB: 1-4min

Cit, kaolin: 1-3min

CFT (clot formation time)

Cit, EXTEM: 46-148s

Cit, INTEM: 40-100s

Alpha angle

α (slope between r and k)

WB: 47°-74°

Cit, kaolin: 55°-78°

α (slope of tangent at 2mm amplitude)

Cit, EXTEM: 63°-81°

Cit, INTEM: 71°-82°

Amplitude (at a fixed time)

A (A30, A60)

A (A10, A15, A20, A25, A30)

Maximum strenght

MA (maximum amplitude)

WB:55-73mm

Cit, kaolin: 51-69

MCF (maximum clot firmness)

Cit, EXTEM: 49-71mm

Cit, INTEM: 52-72mm

Cit, FIBTEM: 9 -25mm

Lysis (at a fixed time)

CL30, CL60

CLY30, CLY60: 94 – 100%

Maximum lysis

ML : <15%