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. 2019 May 17;13:1729–1737. doi: 10.2147/DDDT.S198123

Table 1.

The description of Richmond Agitation-Sedation Scales (RASS)

Score Term Description
+4 Combative Overtly combative or violent; immediate danger to staff
+3 Very agitated Pulls on or removes tube(s) or catheter(s) or has aggressive behavior toward staff
+2 Agitated Frequent nonpurposeful movement or patient-ventillator dyssynchrony
+1 Restless Anxious or apprehensive, but movements not aggressive or vigorous
0 Alert and calm
−1 Drowsy Not fully alert, but has sustained awakening, with eye contact, to voice
−2 Light sedation Briefly awakens with eye contact to voice
−3 Moderate sedation Any movement to voice
−4 Deep sedation No response to voice, but any movement to physical stimulation
−5 Unarousable No response to voice or physical stimulation