Table 2 Scoring system for overt disseminated intravascular coagulation proposed by International Society on Thrombosis and Haemostasis

Platelet counts

   <50 × 10⁹/l

2

   ≥50 <100 × 10⁹/l

1

   ≥100 × 10⁹/l

0

Elevated fibrin-related marker^a

   Strong increase

3

   Moderate increase

2

   No increase

0

Prolonged prothrombin time

   ≥6 seconds

2

   ≥3 <6 seconds

1

   <3 seconds

0

Fibrinogen level

   <100 g/ml

1

   ≥100 g/ml

0

Calculate score

   If >5, compatible with overt DIC; repeat scoring daily

   If <5, suggestive (not affirmative) for nonovert DIC; repeat next 1 to 2 days.