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Table 1 INR, TEG and rTEG results and reference ranges

From: TEG® and RapidTEG® are unreliable for detecting warfarin-coagulopathy: a prospective cohort study

Parameter Mean ± SD Reference range
INR 2.8 ± 0.5 < 1.5
TEG R-Time 8.3 ± 2.7 2-8
TEG K-Time 2.1 ± 1.4 1-3.0
TEG alpha-angle 62.5 ± 10.3 55-78
TEG MA 63.2 ± 10.3 51-69
TEG G-value 9.4 ± 3.5 4.6-10.9
rTEG ACT 132 ± 57.7 86-118
rTEG K-Time 1.2 ± 0.5 1-2.0
rTEG alpha-angle 75.4 ± 5.2 64-80.0
rTEG MA 63.4 ± 5.1 52-71.0
rTEG G-value 8.9 ± 2.0 5.0-11.6
  1. INR, International Normalized Ration; TEG, Thromboelastography; rTEG, RapidTEG; R-Time, Reaction Time; K-Time, Kinetics Time; MA, maximum amplitude; G-value, clot strength/elasticity; ACT, activated clotting time.