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Table 1 Richmond Agitation-Sedation Scale (RASS)

From: Effect of remimazolam besylate compared with propofol on the incidence of delirium after cardiac surgery: study protocol for a randomized trial

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 non-purposeful movement or patient-ventilator dyssynchrony

+1

Restless

Anxious or apprehensive but movements not aggressive or vigorous

0

Alert and calm

 

−1

Drowsy

Not fully alert, but has sustained (>10 seconds) awakening with eye contact to voice

−2

Light sedation

Briefly (<10 seconds) awakens with eye contact to voice

−3

Moderate sedation

Any movement (but no eye contact) to voice

−4

Deep sedation

No response to voice, but any movement to physical stimulation

−5

Unarousable

No response to voice or physical stimulation