True about dementia is A/E
B i.e. Clouding of consciousness is common Clouding of consciousness is a characteristic feature delirium & is helpful in differentiating it from dementiaQ. Two most common causes of dementia are Alzheimer's & multi infarct; both of which are irreversible.
Hallucination are not common
Clouding of consciousness is common
Nootropics have limited role
All