| Diagnostic test | Score |
| Platelet count | >100,000/mm3 = 0 <100,000/mm3 = 1 <50,000/mm3 = 2 |
| Prothrombin time | <3 sec = 0 >3 sec but <6 sec = 1 >6 sec = 2 |
| Fibrin degradation products | No increase = 0 Moderate increase = 2 Strong increase = 3 |
| Fibrinogen level | >1 g/L = 0 <1 g/L = 1 |
| Score calculation | |
| Consistent with overt DIC |
| Not likely overt DIC; repeat tests in 1–2 days |
DIC = disseminated intravascular coagulation.
Algorithm developed by the International Society of Thrombosis and Hemostasis.