Table 1.

The University of Michigan Sedation Scale (UMSS) and the Modified Observer’s Assessment of Alertness and Sedation (MOAAS) Scale

	UMSS		MOAAS
0	Awake and alert	5	Responds readily to name spoken in normal tone
1	Tired/sleepy, appropriate response to verbal conversation and/or sound	4	Lethargic response to name spoken in normal tone
2	Somnolent/sleeping, easily aroused with a simple verbal commend or light tactile stimulation	3	Responds only after name is called loudly and/or repeatedly
		2	Responds only after mildly prodding or shaking
3	Deep sleep, arousable only with a significant physical stimulation	1	Responds only after painful trapezius squeeze
4	Unarousable	0	No response after painful trapezius squeeze