If the bleeding isn’t controlled quickly, they may lose a lot of blood, become unresponsive and possibly develop shock. Shock does not mean emotional shock; it is a life-threatening condition, often caused by loss of blood.
Your priority is to stop the bleeding.
What to do
Follow the steps below:
With open wounds, there’s a risk of infection, so wear protective first aid gloves (if available) to help prevent any infection passing between you both.
Control the bleeding by applying direct pressure to the wound.
Dial 999 or 112 for the emergency services
Apply an appropriate dressing firmly to control the bleeding and minimise the risk of infection. It should not be so tight that it restricts the casualty’s circulation.
Treat for shock by lying the casualty down with their feet raised. If possible, lay the casualty on a blanket or some other item to insulate them from the cold ground. If the casualty has a head injury, lay them down and slightly raise their head and shoulders.
If blood comes through the dressing, remove the dressing and reapply direct pressure over the wound with a new dressing or pad to control the bleeding.
Secure the dressing with the bandage once the bleeding is controlled, tie the knot over the pad to help maintain pressure
It may be that the call handler instructs you how to improvise a tourniquet to control life-threatening bleeding if you are not trained or do not have a tourniquet in your first aid kit, using items such as a triangular bandage, belt, or tie.
Monitor the casualty’s breathing and level of response while waiting for the emergency services to arrive.