TABLE 20. Grading of hepatic encephalopathy
Grade	Level of consciousness	Intellectual function	Neurological findings	EEG
1	Lack of awareness Personality change Day/night reversal	Short attention	Incoordination Mild asterixis	Slowing (5-6 cps) Triphasic
2	Lethargic Inappropriate behavior	Disoriented	Asterixis Abnormal reflexes	Triphasic
3	Asleep Rousable	Loss of meaningful communication	Asterixis Abnormal reflex	Slowing Triphasic
4	Unrousable	Absent	Decerebrate	Very slow (2-3 cps), delta