What is the first thing you should do when encountering a person with a severe, open wound?

When encountering a person with a severe, open wound, the immediate priority is to control the bleeding. The first action should be to apply pressure to the wound with a clean cloth or bandage.

Severe bleeding can be life-threatening within minutes. Applying direct, firm pressure to the wound compresses the blood vessels and slows blood flow, allowing the body's natural clotting mechanisms to begin working. This is the most critical first-aid step because:

• Without controlling bleeding first, a person can lose a dangerous volume of blood very quickly.
• Direct pressure is something that can be performed immediately with any clean cloth, clothing, or bandage available.
• While emergency services should be contacted, the seconds spent applying pressure can be the difference between life and death.

Why the other options are not the correct first step:

• Calling for emergency help is important and should be done as soon as possible, but if you are alone with a severely bleeding person, controlling the bleeding takes priority because delay can be fatal. Ideally, ask a bystander to call while you apply pressure.
• Suturing the wound is a medical procedure that requires training, sterile equipment, and anaesthesia. It is never a first-aid action.
• Washing the wound is appropriate for minor wounds but not the first action for a severe, actively bleeding wound, as it delays the critical step of stopping blood loss.