TASH Score (massive transfusion probability)
TASH score (Yucel 2006): predicts the probability of mass transfusion after severe trauma from hemoglobin, base excess, hemodynamics, FAST, and injury pattern.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Hemoglobin
- 9.5
- Base excess
- -7
- Systolic BP
- 95
- Heart rate
- 130
- Positive FAST
- Yes
Result: TASH score 16: ~47.5% probability of mass transfusion.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Probability
- P(mass transfusion) = 1/(1 + e^-x), x = -4.9 + 0.3*TASH (~50% near a score of 16). The continuous companion to the binary ABC rule.
What you enter
- Hemoglobin (g/dL)
- Base excess (mmol/L)
- Systolic BP (mm Hg)
- Heart rate (beats/min)
- Positive FAST
- Unstable pelvic fracture
- Open or dislocated femur fracture
- Male sex
How this is calculated
- Points
- Hb < 7/9/10/11/12 = 8/6/4/3/2; base excess < -10/-6/-2 = 4/3/1; SBP < 100/120 = 4/1; HR > 120 = 2; FAST +3; unstable pelvis +6; open/dislocated femur +3; male +1 (0-31).
Yucel 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. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.