Delirium is distinguished from dementia by the presence of
Ans.C. Clouding of consciousnessThe hallmark of delirium is fluctuation in the level of consciousness.Periods of lucency may be interspersed with periods of marked unresponsiveness.Another distinguishing feature is that the onset of delirium usually occurs within hours or days, whereas the onset of dementia may be insidious throughout weeks to months.
Impaired judgment
Impaired memory
Clouding of consciousness
Thought disorder