From:  Mechanical associated disseminated intravascular coagulation during extracorporeal membrane oxygenation: a case series

 The International Society on Thrombosis and Haemostasis (ISTH) scoring chart.

Laboratory parameterResultPoints
Platelet count> 100 × 109/L0
≤ 100 × 109/L1
< 50 × 109/L2
Fibrin-related markersNo increase0
Moderate increase2
Strong increase3
Prothrombin time< 3 seconds prolongation0
≥ 3 but < 6 seconds prolongation1
≥ 6 seconds prolongation2
Fibrinogen> 100 mg/dL0
≤ 100 mg/dL1

Final score ≥ 5 indicates overt DIC, while a score of < 5 is compatible with non-overt DIC. DIC: disseminated intravascular coagulation.