Dementia vs delirium:
Dementia has slow onset, does NOT alter vital signs, and is irreversible.
Delirium has rapid onset, can alter vital signs and level of consciousness, and is reversible.

Dementia vs delirium:
Dementia has slow onset, does NOT alter vital signs, and is irreversible.
Delirium has rapid onset, can alter vital signs and level of consciousness, and is reversible.