Intensity cut-points for the Respiratory Distress Observation Scale

Area of Science:

• Medical Assessment
• Clinical Diagnostics
• Respiratory Care

Background:

• The Respiratory Distress Observation Scale (RDOS) is a validated tool for assessing dyspnea when self-reporting is not possible.
• It offers acceptable reliability and validity for clinical use.

Purpose of the Study:

• To establish specific cut-points for the RDOS that correlate with varying intensities of respiratory distress.
• To differentiate between mild, moderate, and severe levels of breathing difficulty using the RDOS.

Main Methods:

• Receiver operating characteristic (ROC) curve analysis was employed.
• Inpatients were stratified by self-reported respiratory distress levels (none, mild, moderate, severe).
• The RDOS was used to assess respiratory distress, with results compared against patient self-reports.

Main Results:

• A score of 0-2 on the RDOS suggests little to no respiratory distress.
• An RDOS score of 3 or greater indicates moderate to severe respiratory distress.
• The study included 136 adult inpatients, with a mean age of 61.8 years.

Conclusions:

• An RDOS score of ≥3 signifies the need for respiratory distress palliation.
• An RDOS score <3 can serve as an endpoint for treatment, indicating respiratory comfort.
• Further research is needed to refine moderate and severe distress cut-points, as critically ill patients were not fully represented.