If either hypothermia or heat illness is suspected, the casualty will require medical assistance.
Hypothermia
The effects of hypothermia can be prevented or managed by:
- Moving the casualty to a warmer environment
- If they cannot be moved indoors, providing some insulation for them to lie on
- Replacing wet clothing with dry clothes, making sure their head is covered
- Covering the casualty with blankets
Heat illness
The effects of heat stress can be prevented or managed by:
- Moving the person to a cool environment
- Providing external cooling
- Rehydration by drinking cool, still water
Faints (syncope) may be prevented if the casualty lies down with their legs raised above the level of their head.