Richmond Agitation-Sedation Scale

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-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 (more than 10 seconds) awakening, with eye contact, to voice

-2

Light sedation

Briefly (less than 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

Adapted from Sessler CN, Gosnell MS, Grap MJ, et al: The Richmond Agitation-Sedation Scale: Validity and reliability in adult intensive care unit patients. American Journal of Respiratory and Critical Care Medicine 166(10)1338–1344, 2002. doi: 10.1164/rccm.2107138