- Acute asthma
- Addisonian crisis
- Anaphylaxis
- Bacterial meningitis
- Delirium
- Diabetic ketoacidosis (DKA)
- Febrile neutropaenia
- Hyperkalaemia
- Hyperosmolar hyperglycaemic state (HHS)
- Pneumothorax
- Status epilepticus
- Stroke
- Subarachnoid haemorrhage (SAH)
- Syncope
- Thyrotoxic storm