A&E (accident and emergency) is for serious injuries and life-threatening emergencies. It’s also known as the emergency department or casualty.
https://www.nhs.uk/nhs-services/urgent-and-emergency-care-services/when-to-go-to-ae
An A&E department (also known as emergency department or casualty) deals with genuine life-threatening emergencies, such as:
- loss of consciousness
- acute confused state and fits that are not stopping
- chest pain
- breathing difficulties
- severe bleeding that cannot be stopped
- severe allergic reactions
- severe burns or scalds
- stroke
- major trauma such as a road traffic accident