RTS v.1
Revised Trauma Score (RTS) is a physiologic score of injury severity performed at first patient contact following trauma, and it numerically summarizes assessments of circulatory (Systolic Blood Pressure), respiratory (Respiratory Rate) and central nervous system (Glasgow Coma Scale score) function, using coded and weighted forms of the three physiologic variables. It has high inter-rater ability and is used to quantify the severity of injury, to predict survival/death outcome and (with unweighted forms of the variables) as a triage tool in the pre-hospital setting (Triage-RTS). RTS is scored from 0 - 7.8408 (includes non-integer values), and higher RTS scores are associated with greater probability of survival. T-RTS is scored from 0 - 12 (only integer values), and patients with T-RTS = 1 - 10 (T1) require immediate life-saving intervention; T-RTS = 11 (T2) require urgent intervention within two to four hours, T-RTS = 12 (T3) can have delayed care, while T-RTS = 0 implies a dead patient.
To calculate revised trauma score (RTS) and triage-revised trauma score (T-RTS), for pre-hospital triage, quantifying injury severity, and assessing probability of survival/death following trauma.
To calculate RTS and T-RTS, based on Glasgow Coma Scale (GCS) score, respiratory rate (RR) and systolic blood pressure (SBP) values taken at first patient contact following injury. GCS, RR (breaths/min) and SBP (mmHg) are coded as follows; Glasgow Coma Scale(GCS) Systolic Blood Pressure(SBP) Respiratory Rate(RR) Coded Value(c) 13-15 >89 10-29 4 9-12 76-89 >29 3 6-8 50-75 6-9 2 4-5 1-49 1-5 1 3 0 0 0 RTS = (0.9368 * cGCS) + (0.7326 * cSBP) + (0.2908 * cRR) --> scored 0 - 7.8408 (includes non-integer values), and heavily weighted towards the Glasgow Coma Scale to compensate for major head injury without multisystem injury or major physiological changes. RTS is used to quantify the severity of injury and to predict survival/death outcome following trauma; higher RTS scores are associated with greater probability of survival (RTS of 4 => 60% probability of survival). RTS determined probability of survival is calculated using RTS_Assessment.v1 application. T-RTS = cGCS + cSBP + cRR --> scored 0 - 12 (integer values only), and used for triage in the pre-hospital setting. Patients with T-RTS = 1 - 10 (T1) require immediate life-saving intervention; T-RTS = 11 (T2) require urgent intervention within two to four hours, T-RTS = 12 (T3) can have delayed care, while T-RTS = 0 implies a dead patient. RTS may be combined with Injury Severity Score (ISS), an anatomic trauma scoring system, for epidemiologic studies as well as studies evaluating different strategies or systems of trauma care. RTS may also be used along with ISS and patient age to calculate Trauma and Injury Severity Score (TRISS) which is used to determine probability of patient survival.
Calculation may be innacurate for patients who are intubated and mechanically ventilated.
Champion HR, Sacco WJ, Copes WS, Gann DS, Gennarelli TA, Flanagan ME. A revision of the Trauma Score. Journal of Trauma and Acute Care Surgery. 1989 May 1;29(5):623-9. Moore L, Lavoie A, LeSage N, Abdous B, Bergeron E, Liberman M, Emond M. Statistical validation of the revised trauma score. Journal of Trauma and Acute Care Surgery. 2006 Feb 1;60(2):305-11.
OBSERVATION.glasgow_coma_scale.v1, OBSERVATION.respiration.v2, OBSERVATION.blood_pressure.v2, OBSERVATION.revised_trauma_score.v1, EVALUATION.revised_trauma_score.v1
