Dementia
Depression
Delirium
Drugs-(toxicity/ withdrawal)
Hypothyroidism
Urinary tract infection
Subdural haematoma
Hypoglycemia
Schizophrenia
HIV
Encephalitis
Cerebral tumour- primary or secondary metastasis
CVA/stroke
Diabetic ketoacidosis
Electrolyte imbalance
Faecal impaction
Urinary retention