What immediate action should be taken in case of severe bleeding?

In the event of severe bleeding, the most critical immediate action to take is to apply pressure to the wound. This step is vital because direct pressure helps to stem the flow of blood, reducing the risk of significant blood loss that could lead to shock or even be life-threatening. By applying firm and consistent pressure directly to the site of the injury, you can help the body’s natural clotting mechanisms work more effectively. Additionally, if the bleeding does not stop with direct pressure, it may be necessary to further elevate the injured area or use a clean cloth or bandage to maintain the pressure.

The other options do not address the immediate needs of someone experiencing severe bleeding as effectively. For instance, while calling for a physician is important, it should be done after immediate first aid measures are taken. Artificial respiration is associated with situations where breathing is compromised, not specifically with bleeding. Moving the person to a warm place may be relevant once the bleeding has been controlled, particularly if there is a risk of shock, but it is not a priority action when severe bleeding is occurring. Therefore, applying pressure to the wound is the correct immediate response in managing severe bleeding effectively.