Common risk<unk>  associated with delirium include older age, dementia, hypertension, emergency surgery or trauma before ICU admission, mechanical ventilation, metabolic acidosis, delirium on the prior day , coma.
Delirium risk factors
Altered mental status pathophysiology
Amnesia risk factors
Delirium causes
Psychosis risk factors
Amnesia causes
Dementia risk factors
Schizophrenia risk factors