Shock is a life-threatening condition that occurs when the circulatory system fails to provide enough oxygenated blood to the body and, as a result, deprives the vital organs of oxygen. Do you know how to best help someone in shock?
Shock is usually the result of severe bleeding, which can kill. If the casualty has lost a large quantity of blood this can cause a reduction in blood supply to the brain (don't forget that children can't afford to lose as much blood as adults). It can also occur after severe burns, severe vomiting, a heart attack, bacterial infection or a severe allergic reaction (anaphylaxis).
The type of shock described here isn't the same as the emotional response of feeling shocked, which can also occur after an accident.