Richmond Agitation-Sedation Scale

Richmond Agitation-Sedation Scale (RASS) is a medical scale used to measure the agitation or sedation level of a person. It was developed with efforts of different practitioners, represented by physicians, nurses and pharmacists.

The RASS can be used in all hospitalized patients to describe their level of alertness or agitation. It is however mostly used in mechanically ventilated patients in order to avoid over and under-sedation. Obtaining a RASS score is the first step in administering the Confusion Assessment Method in the ICU (CAM-ICU), a tool to detect delirium in intensive care unit patients.

The RASS is one of many sedation scales used in medicine. Other scales include the Ramsay scale, the Sedation-Agitation-Scale, and the COMFORT scale for pediatric patients.