The Revised Trauma Score (RTS) incorporates which three physiological parameters to predict survival in trauma patients?

• A Glasgow Coma Scale, Systolic Blood Pressure, and Respiratory Rate ✓
• B Heart Rate, Oxygen Saturation, and GCS
• C Abbreviated Injury Scale, age, and blood pressure
• D Base excess, lactate, and respiratory rate

Explanation

The Revised Trauma Score (RTS) uses GCS (coded 0–4), Systolic Blood Pressure (coded 0–4), and Respiratory Rate (coded 0–4), with each parameter weighted by a coefficient derived from regression analysis. It is used in prehospital triage (T-RTS) and outcome prediction. A score below 4 on T-RTS triggers immediate intervention. The Trauma and Injury Severity Score (TRISS) combines RTS with ISS and age for survival probability calculation.

Reference: Bailey & Love's Short Practice of Surgery, 27th ed.

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