Shock is a dangerous condition caused by the lack of adequate blood flow. Going into a state of shock will decrease blood pressure, interfere with urine production, and may damage cells or tissue. Anything that drastically reduces circulation can cause shock, including heart problems, bleeding, serious infections, and extreme allergic reactions. Shock that results from trauma or injury is called traumatic shock. Symptoms include cold, sweaty skin; dizziness; fainting; chest pain; a blue tint to the lips and fingernails; shallow breathing; and rapid pulse. The victim may become weak, confused, or lose consciousness. Shock can be deadly, so learn to recognize the signs, and call 9-1-1 immediately. Never give the person anything to eat or drink. If you think a spinal injury is involved, don't try to move the victim. Otherwise, if no head, leg, or neck injuries prevent it, you can put the person on his or her back, and elevate the feet. Cover the victim with a coat or blanket, and loosen any restrictive clothing. If external bleeding is present, apply pressure with a sterile cloth, and try to reduce further blood loss. You may need to perform rescue breathing or CPR until help arrives. For more information on traumatic shock, consult a doctor.
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