Scales to quantify altered mental status

What scales are in use to quantify altered mental status? 

The level of consciousness of a neurologically impaired patient may initially be evaluated by using a simple AVPU scale, representing four major levels of alertness: alert (A), responsive to verbal stimuli (V), responsive to painful stimuli (P), and unresponsive (U). 

A more widely used measurement of consciousness is the Glasgow Coma Scale (GCS). Patients are graded on three areas of neurologic function: eye opening, motor responses, and verbal responsiveness. These numeric scores are added to determine the GCS score.

A GCS score of 3 is the minimum score possible and represents complete unresponsiveness, and a GCS score of 15 is assigned to fully alert patients. Details of the scores assigned are listed, for children above 2 years of age and below, in these tables

Glasgow Coma Scale

Score Value	Eye Opening	Best Motor Response	Best Verbal Response
6		Obeys verbal command
5		Localizes to pain	Oriented, converses
4	Spontaneous	Flexion withdrawal	Disoriented, converses
3	To speech	Flexion decorticate	Inappropriate words
2	To pain	Extension decerebrate	Incomprehensible sounds
1	None	None	None

Pediatric Glasgow Coma Scale (Use for Patients under 2 Years of Age)

Score Value	Eye Opening	Best Motor Response	Best Verbal Response
6		Normal spontaneous movement
5		Withdraws to touch	Coos, babbles
4	Spontaneous	Withdraws to pain	Irritable, cries
3	To speech	Abnormal flexion	Cries to pain
2	To pain	Abnormal extension	Moans to pain
1	None	None	None