http://www.nlm.nih.gov/medlineplus/ency/article/000302.htm Symptoms
changes in mental state, consciousness, behavior,
personality
forgetfulness
confusion, disorientation
delirium (acute, severe confusion with fluctuating level of consciousness)
dementia (loss of memory, intellect, reasoning, and other functions)
changes in mood
decreased alertness, daytime sleepiness
decreased responsiveness, progressive stupor
coma
decreased self-care ability
deterioration of handwriting or loss of other small hand movements
coarse muscletremors
muscle stiffness or rigidity
seizures (rare)
speech impairment
movement, uncontrollable
movement, dysfunctional agitation
Signs and tests
Neurologic symptoms may fluctuate. Coarse, "flapping" muscletremor may be observed during voluntary movement, such as when the person attempts to hold the arms out in front of the body (also exhibited as a positive Babinski's reflex).
Mental status examination will be abnormal, particularly cognitive tasks such as connecting numbers with lines.
Liver disease may be known or may be suspected, and signs of liver disease such as jaundice (yellow skin and eyes) and ascites (fluid collection in the abdomen) may be noted. Occasionally, there is a characteristic musty odor to the breath and the urine.
Blood tests may be nonspecific, or may show liver failure.
You see, I told you....
I hate to nitpick, but I think that's called asterixis. Maybe AQ Geiger could set us straight on that.