Richmond Agitation-Sedation Scale Clinical Classification

**Semantic type:** Intellectual Product

**Definition:** A standardized 10-point rating scale, developed by Sessler et al. 2002, that is used to assess the level of alertness and agitation in critically ill patients. The assigned score ranges from +4 to -5, with four levels of anxiety or agitation, a score of zero denoting a calm and alert state, and five levels of sedation.

**Synonyms:** - RASS - RASS - RASS01