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A conscious/responsive shock victim may exhibit symptoms of restlessness, fear, shivering, rapid breathing and pulse rate, sweating, nausea, vomiting, headache, and/or tiredness. They may become unresponsive and lose consciousness. An unconscious shock victim's circulatory system is failing to deliver enough oxygen, and they may therefore have a blue colouring in the nail beds, tops of hands, around the lips, and/or face. Treatment of shock begins with elevating the legs higher than the waist.

Fainting - If there is a decreased level of consciousness, always activate EMS immediately. Reasons for fainting include, but are not limited to: overheating, dehydration, a sudden drop in blood pressure, stroke, epilepsy, poisoning, or anaphylactic shock due to an allergic reaction. Fainting is a mild form of shock, so lift the victim's legs up to regain blood flow to the vital organs.