Revised Trauma Score
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The Revised Trauma Score (RTS) is a physiologic scoring system based on the initial vital signs of a patient. A lower score indicates a higher severity of injury.
Use in triage
The Revised Trauma Score is made up of three categories: Glasgow Coma Scale, systolic blood pressure, and respiratory rate. The score range is 0–12. In START triage, a patient with an RTS score of 12 is labeled delayed, 11 is urgent, and 3–10 is immediate. Those who have an RTS below 3 are declared dead and should not receive certain care because they are highly unlikely to survive without a significant amount of resources.[citation needed]
Scoring
The score is as follows:
| Glasgow Coma Scale GCS Points 15–13 4 12–9 3 8–6 2 5–4 1 3 0 | Systolic Blood Pressure SBP Points >89 4 76–89 3 50–75 2 1–49 1 0 0 | Respiratory Rate RR Points 10-29 4 >29 3 6–9 2 1–5 1 0 0 |
| GCS | Points | |
| 15–13 | 4 | |
| 12–9 | 3 | |
| 8–6 | 2 | |
| 5–4 | 1 | |
| 3 | 0 | |
| SBP | Points | |
| >89 | 4 | |
| 76–89 | 3 | |
| 50–75 | 2 | |
| 1–49 | 1 | |
| 0 | 0 | |
| RR | Points | |
| 10-29 | 4 | |
| >29 | 3 | |
| 6–9 | 2 | |
| 1–5 | 1 | |
| 0 | 0 |
These three scores (Glasgow Coma Scale, Systolic Blood Pressure, Respiratory Rate) are then used to take the weighted sum by RTS = 0.9368 GCSP + 0.7326 SBPP + 0.2908 RRP Values for the RTS are in the range 0 to 7.8408. The RTS is heavily weighted towards the Glasgow Coma Scale to compensate for major head injury without multisystem injury or major physiological changes. A threshold of RTS < 4 has been proposed to identify those patients who should be treated in a trauma centre, although this value may be somewhat low.