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ABC score for massive transfusion
Predicts need for massive transfusion in trauma.
ABC score for massive transfusion
Penetrating mechanism of injury
Emergency department systolic BP <=90 mmHg
Emergency department heart rate >=120 /min
Positive focused assessment with sonography for trauma (FAST)
Result0 points
Score <2 makes massive transfusion unlikely.
- Massive transfusion predicted
- No
When to use
- Rapidly deciding whether to activate a massive transfusion protocol in adult trauma.
Formula
One point each: penetrating mechanism, SBP <=90, HR >=120, positive FAST. A total >=2 is a positive screen.
Pearls and pitfalls
- Uses only bedside variables available before laboratory results.
- Sensitivity is imperfect; clinical judgement still governs activation.