Differential diagnosis
Common
- Hypoglycaemia
- Urinary tract infection (lower) in adults
Infrequent
- Wernicke's encephalopathy
- Sepsis
- Acute exacerbation of COPD
- Alcohol withdrawal
- Pneumonia
- Alcohol excess
- Diabetic ketoacidosis
- Ascending cholangitis
- Herpes simplex encephalitis
- Hyperosmolar hyperglycaemic state
- Subdural haemorrhage
Rare
- Viral meningitis
- Carbon monoxide poisoning
- Acute liver failure
- Neuroleptic malignant syndrome
- Malaria (Falciparum)
- Central venous thrombosis
- Subarachnoid haemorrhage
- Extradural haematoma
- Acute fatty liver of pregnancy
- Legionella pneumonia
- Anti-NMDA receptor encephalitis