revised_trauma_score: Revised Trauma Score (RTS)

In cliot: Clinical Indices and Outcomes Tools

Revised Trauma Score (RTS)

Description

Calculates the Revised Trauma Score (RTS), a physiological scoring system used to assess trauma severity. It provides two outputs: the Triage RTS (range 0-12, integer sum) for rapid field assessment, and the Standard RTS (range 0-7.8408, weighted sum) for outcome prediction and quality assurance.

Usage

revised_trauma_score(gcs, systolic_bp, respiratory_rate)

Arguments

gcs	Numeric. Glasgow Coma Scale score (3-15).
systolic_bp	Numeric. Systolic blood pressure in mmHg.
respiratory_rate	Numeric. Respiratory rate in breaths per minute.

Details

The coded values (0-4) for each parameter are assigned as follows:

• GCS: 13-15 (4), 9-12 (3), 6-8 (2), 4-5 (1), 3 (0).

• SBP: >89 (4), 76-89 (3), 50-75 (2), 1-49 (1), 0 (0).

• RR: 10-29 (4), >29 (3), 6-9 (2), 1-5 (1), 0 (0).

The Standard RTS uses the formula: RTS = 0.9368(GCS_c) + 0.7326(SBP_c) + 0.2908(RR_c).

Value

A list containing:

Triage_RTS	Simple sum of coded values (0-12). Lower scores indicate higher severity.
Standard_RTS	Weighted sum (0-7.8408). Higher scores indicate better probability of survival.
Coded_Values	The intermediate 0-4 scores assigned to each input.

References

Champion HR, Sacco WJ, Copes WS, et al. A revision of the Trauma Score. J Trauma. 1989;29(5):623-629.

Examples

# Example 1: Stable Patient
# GCS 15 (4), SBP 120 (4), RR 16 (4)
# Triage RTS = 12, Standard RTS = 7.8408
revised_trauma_score(15, 120, 16)

# Example 2: Severe Trauma
# GCS 7 (2), SBP 80 (3), RR 35 (3)
# Standard RTS = 0.9368(2) + 0.7326(3) + 0.2908(3) = 1.8736 + 2.1978 + 0.8724 = 4.9438
revised_trauma_score(7, 80, 35)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.