The Revised Trauma Score (RTS) by Champion is a bedside score built from a fixed set of physiological measurements, and this question asks which listed item is left out of that set.
- Glasgow coma scale: This is one of the three official components of the RTS, it measures the level of consciousness and carries the heaviest weight in the final score.
- Systolic blood pressure: This is also one of the three official components, standing in for the state of the circulation.
- Respiratory rate: This is the third official component, standing in for the state of breathing.
- Pulse rate: This is not part of the Revised Trauma Score at all. The RTS is built only from Glasgow coma scale, systolic blood pressure, and respiratory rate, so pulse rate is the item left out.
Since only three variables make up the RTS, and pulse rate is not one of them, it is the correct answer to "EXCEPT".
Let's summarize:
- RTS equals Glasgow coma scale, systolic blood pressure, and respiratory rate together.
- Pulse rate belongs to other scoring tools, not the Revised Trauma Score.
So pulse rate is the parameter not included in the Revised Trauma Score.