Shock

Shock is a critical condition brought on by the sudden drop in blood flow through the body. Shock may result from trauma, heatstroke, blood loss, an allergic reaction, severe infection, poisoning, severe burns or other causes. When a person is in shock, his or her organs aren't getting enough blood or oxygen. If untreated, this can lead to permanent organ damage or even death.

Symptoms

  • Cool, clammy skin
  • Pale or ashen skin
  • Bluish tinge to lips or fingernails (or gray in the case of dark complexions)
  • Rapid pulse
  • Rapid breathing
  • Nausea or vomiting
  • Enlarged pupils
  • Weakness or fatigue
  • Dizziness or fainting
  • Changes in mental status or behavior, such as anxiousness or agitation
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