What should you do first in a situation involving a victim who is bleeding heavily?

In a situation involving a victim who is bleeding heavily, applying direct pressure to the wound is the most immediate and critical action you should take. Direct pressure is the most effective method to control bleeding. By applying firm, steady pressure with a clean cloth or bandage directly on the site of the bleeding, you can help reduce blood loss by encouraging the blood vessels to constrict and potentially clot the wound.

This action is vital because severe bleeding can quickly lead to shock or even death, making it the priority in first aid. While calling for emergency help is important, it does not address the immediate threat posed by the bleeding. Administering CPR is not applicable unless the victim is unresponsive and not breathing, which is not the first step in response to heavy bleeding. Checking for a pulse is also not a priority when active bleeding is occurring, as controlling the bleed takes precedence to ensure the victim remains stable until professional help arrives.