Table 2.
Thromboelastography parameters and indicated treatments when abnormal
| Definition | Normal | Treatment | |
|---|---|---|---|
| R time | Time to first clot formation | 5–10 min | FFP |
| K time | Time till fixed strength | 0.5–3 min | FFP/cryoprecipitate |
| Alpha angle | Speed of fibrin formation | 50–75 deg | Cryoprecipitate |
| MA | Maximum vertical amplitude | 50–70 mm | Platelets and/or DDAVP |
| LY30 | Percentage of amplitude reduction at 30 minutes | 0%–6% | Tranexamic acid |
FFP, fresh frozen plasma; MA, maximum amplitude; DDAVP, desmopressin; LY30, lysis at 30 minutes.