Revised Trauma Score Calculator
Calculate the Revised Trauma Score from GCS, systolic BP, and respiratory rate. Enter values for instant results with step-by-step formulas.
Formula
RTS = 0.9368 x GCS_code + 0.7326 x SBP_code + 0.2908 x RR_code
Each physiological parameter (GCS, systolic BP, respiratory rate) is coded on a 0-4 scale, then multiplied by empirically derived weighting coefficients. GCS has the highest weight (0.9368) as the strongest survival predictor. Maximum RTS is 7.8408.
Frequently Asked Questions
What is the Revised Trauma Score and how is it calculated?
The Revised Trauma Score (RTS) is a physiological scoring system used in trauma care to assess injury severity and predict survival probability. It was developed by Champion et al. in 1989 as a refinement of the original Trauma Score. The RTS uses three physiological parameters: Glasgow Coma Scale (GCS), systolic blood pressure (SBP), and respiratory rate (RR). Each parameter is coded on a scale of 0 to 4, then weighted: RTS = 0.9368 x GCS_code + 0.7326 x SBP_code + 0.2908 x RR_code. The maximum RTS is 7.8408, indicating minimal physiological derangement. The weighting reflects the relative importance of each parameter in predicting survival, with GCS carrying the greatest weight.
What are the limitations of the Revised Trauma Score?
The RTS has several recognized limitations. It relies solely on physiological parameters measured at a single point in time and does not account for anatomical injury patterns, patient age, or comorbid conditions. Intubated and sedated patients cannot provide accurate GCS assessments, potentially artificially lowering their scores. The RTS may underestimate injury severity in young athletic patients who can maintain vital signs despite significant hemorrhage through compensatory mechanisms. It does not capture evolving clinical trajectories or response to resuscitation. The original coefficients were derived from 1980s trauma data and may not perfectly reflect modern trauma care outcomes. Despite these limitations, the RTS remains widely used because of its simplicity, speed of calculation, and validation across large international trauma databases.
How accurate are the results from Revised Trauma Score Calculator?
All calculations use established mathematical formulas and are performed with high-precision arithmetic. Results are accurate to the precision shown. For critical decisions in finance, medicine, or engineering, always verify results with a qualified professional.
Can I use Revised Trauma Score Calculator on a mobile device?
Yes. All calculators on NovaCalculator are fully responsive and work on smartphones, tablets, and desktops. The layout adapts automatically to your screen size.
Is my data stored or sent to a server?
No. All calculations run entirely in your browser using JavaScript. No data you enter is ever transmitted to any server or stored anywhere. Your inputs remain completely private.
Can I share or bookmark my calculation?
You can bookmark the calculator page in your browser. Many calculators also display a shareable result summary you can copy. The page URL stays the same so returning to it will bring you back to the same tool.