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. 2015 Jan 1;23(3):201–210. doi: 10.1177/1076029615606531

Figure 2.

Figure 2.

Mechanics of the thromboelastometry (ROTEM) device (reproduced with permission from Tem Innovations). The plunger is rotated around the vertical axis, and the amount of rotation (which reduces as coagulation progresses) is recorded via reflected light-emitting diode (LED) light.