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. 2018 Jan 24;4(4):FSO285. doi: 10.4155/fsoa-2017-0104

Figure 3. . GTTmeasurement using native blood.

Figure 3. 

GTT instrument (A) and principle of the measurement (B). Platelets in native blood are activated by high shear forces in the upper gaps (1). Fibrin stabilized thrombi formed between the two bearing balls occlude the lower gaps (2). Real time recording of GTT measurement (C).

IR: Infra red; GTT: Global thrombosis test; LT: Lysis time, time from the start of measurement until the first blood drop detected after OT + 200 s stabilization; OT: Time between two consecutive blood drops exceeding the default (15 s).