Table 1

Rapid TEG interpretation

r-TEG valueDefinitionInterpretation
ACT (s)Time from start of assay to initiation of clotProlonged with factor deficiency or severe hemodilution
Reaction time (min)Time between beginning of assay and initial clot formationProlonged with factor deficiency or severe hemodilution
Kinetic time (min)Time needed to reach 20 mm clot strengthIncreased with hypofibrinogenemia or platelet dysfunction
α angle (°)Rate or acceleration of clot formationDecreased with hypofibrinogenemia or platelet dysfunction
Maximum amplitude (mm)Contribution of platelet function and platelet–fibrin interactionsDecreased with platelet dysfunction and hypofibrinogenemia
LY-30 (%)Amplitude reduction 30 min after achieving MA (degree of fibrinolysis)Increased with accelerated fibrinolysis
  • ACT, activated clotting time; LY-30, lysis 30 min after MA; MA, maximum amplitude; r-TEG, rapid TEG; TEG, thrombelastography.