Shock: First aid

Shock may result from trauma, heatstroke, allergic reactions, severe infection, poisoning or other causes. Various signs and symptoms appear in a person experiencing shock:

• The skin is cool and clammy. It may appear pale or gray.
• The pulse is weak and rapid. Breathing may be slow and shallow, or hyperventilation (rapid or deep breathing) may occur. Blood pressure is below normal.
• The eyes lack luster and may seem to stare. Sometimes the pupils are dilated.
• The person may be conscious or unconscious. If conscious, the person may feel faint or be very weak or confused. Shock sometimes causes a person to become overly excited and anxious.

If you suspect shock, even if the person seems normal after an injury:

1. Dial 911 or call your local emergency number.
2. Have the person lie down on his or her back with feet higher than the head. If raising the legs will cause pain or further injury, keep him or her flat. Keep the person still.
3. Check for signs of circulation (breathing, coughing or movement). If absent, begin CPR.
4. Keep the person warm and comfortable. Loosen belt(s) and tight clothing and cover the person with a blanket. Even if the person complains of thirst, give nothing by mouth.
5. If the person vomits or bleeds from the mouth, turn the person on his or her side to prevent choking.
6. Seek treatment for injuries such as bleeding or broken bones.