ToolsCalculators
Richmond Agitation-Sedation Scale (RASS)
Standardised assessment of sedation and agitation depth.
Richmond Agitation-Sedation Scale (RASS)
Observed level
ResultRASS 0
Alert and calm. Light sedation targets (0 to -2) are commonly preferred for ventilated patients.
When to use
- Titrating sedation in mechanically ventilated or ICU patients.
- Establishing arousal level before delirium screening (e.g. CAM-ICU).
Formula
Single ordinal assessment from +4 (combative) to -5 (unarousable), with 0 = alert and calm.