Formula Used
The calculator first converts each raw clinical input into a coded value from 0 to 4.
| Input | Code 4 | Code 3 | Code 2 | Code 1 | Code 0 |
|---|---|---|---|---|---|
| GCS | 13 to 15 | 9 to 12 | 6 to 8 | 4 to 5 | 3 |
| SBP | More than 89 | 76 to 89 | 50 to 75 | 1 to 49 | 0 |
| RR | 10 to 29 | More than 29 | 6 to 9 | 1 to 5 | 0 |
Weighted RTS = 0.9368 × GCS code + 0.7326 × SBP code + 0.2908 × RR code.
Triage RTS Total = GCS code + SBP code + RR code.
Example Data Table
| Case | GCS | SBP | RR | Codes | Weighted RTS | Triage Total |
|---|---|---|---|---|---|---|
| A | 15 | 120 | 18 | 4, 4, 4 | 7.8408 | 12 |
| B | 10 | 82 | 30 | 3, 3, 3 | 5.8806 | 9 |
| C | 7 | 60 | 8 | 2, 2, 2 | 3.9204 | 6 |
| D | 4 | 40 | 4 | 1, 1, 1 | 1.9602 | 3 |
How to Use This Calculator
- Enter the first reliable Glasgow Coma Scale value.
- Enter systolic blood pressure in mm Hg.
- Enter respiratory rate in breaths per minute.
- Add case notes if needed.
- Choose decimal places for the weighted result.
- Press the calculate button.
- Review coded values and final scores.
- Use CSV or PDF export for records.
About the Revised Trauma Score
Purpose
The Revised Trauma Score is a quick physiologic score for injured patients. It uses three early observations. These are Glasgow Coma Scale, systolic blood pressure, and respiratory rate. Each value reflects a major body system. GCS reflects neurologic status. Blood pressure reflects circulation. Respiratory rate reflects breathing effort.
Why Coded Values Matter
The raw values are not added directly. They are converted into coded values first. Each coded value runs from zero to four. A normal or near normal value gets four points. A severely abnormal value gets fewer points. This makes very different measurements easier to compare.
Weighted Score
The weighted RTS gives more influence to GCS. This is important because reduced consciousness may signal serious head injury. The maximum weighted score is 7.8408. A lower value suggests greater physiologic concern. The calculator also shows the simple triage total. That value can reach twelve.
Practical Use
Use this tool after collecting the first reliable vital signs. Enter the values carefully. Then compare the coded values with the final score. The output can help organize records, teaching notes, audits, and trauma reviews. It can also support communication between team members.
Important Limits
This calculator is not a diagnosis. It does not replace clinical judgment. It does not decide treatment by itself. Trauma care depends on mechanism, bleeding, airway status, imaging, age, pregnancy, medication use, and local protocol. Always follow emergency care guidance. Recheck the patient often. Scores can change quickly after shock, airway support, fluids, pain, or deterioration.
FAQs
What is the Revised Trauma Score?
It is a physiologic scoring method for trauma review. It uses GCS, systolic blood pressure, and respiratory rate. Lower values suggest more serious physiologic derangement.
What values are required?
You need Glasgow Coma Scale, systolic blood pressure, and respiratory rate. Age, notes, assessor name, and case reference are optional record fields.
What is the maximum weighted RTS?
The maximum weighted RTS is 7.8408. This happens when all three coded values equal four.
What is the triage RTS total?
It is the simple sum of the three coded values. It ranges from zero to twelve. It is shown beside the weighted score.
Why does GCS have the largest coefficient?
GCS receives the largest weighting because neurologic status is highly important in trauma assessment. It helps reflect the impact of serious head injury.
Can this tool predict survival exactly?
No. The result is a severity aid, not an exact survival prediction. Patient outcome depends on many clinical and system factors.
Should this replace emergency judgment?
No. Use it as a support tool only. Follow local emergency, trauma, and transfer protocols.
Can I export the result?
Yes. Use the CSV button for spreadsheet records. Use the PDF button for a simple printable report.