The prodrome of acute encephalopathy consists of subtle changes in mental attitudes, sluggishness, poor monoy, inability to concentrate, restlessness, and hyper-irritability.

• 急性脑病的先驱症状包括精神态度的微妙变化，懒惰厌动，记忆力衰退，精神不集中，烦躁不安和过度刺激。