TASH Score Calculator (Massive Transfusion)

Trauma Associated Severe Hemorrhage (TASH) score for massive transfusion probability.

For educational and clinical reference. Not a substitute for medical judgment. See the medical disclaimer.

Hemoglobin (g/dL)

Base excess (mmol/L)

Systolic blood pressure (mmHg)

Heart rate (bpm)

Positive FAST (free intra-abdominal fluid)

Clinically unstable pelvic fracture

Open or dislocated femur fracture

Sex

Score

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Interpretation

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References

Yücel N, Lefering R, Maegele M, et al. Trauma Associated Severe Hemorrhage (TASH)-Score: probability of mass transfusion as surrogate for life threatening hemorrhage after multiple trauma. J Trauma. 2006;60(6):1228-1236.

Select the band for each of the eight TASH variables.
The total score (0–31) and massive-transfusion probability band update instantly.
High scores warrant early massive transfusion protocol activation.

The Trauma Associated Severe Hemorrhage score predicts the probability that a severely injured patient will require massive transfusion.

Higher scores prompt early activation of the massive transfusion protocol and balanced blood-product resuscitation.

Hemoglobin, base excess, systolic BP, heart rate, positive FAST, unstable pelvic fracture, femur fracture, and male sex.

No — the probability of massive transfusion rises steeply (sigmoidally); the bands here summarise the validated probability ranges.

Last updated June 28, 2026