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Shock

Shock

Shock is a physiological disturbance in the balance of the circulatory system that
results in a decrease in the amount of oxygen reaching the cells of the body.

Shock is a progressive condition that can become life threatening. Several emotional
factors can also contribute to shock, although this type of shock alone is rarely a
high medical priority. A person may suddenly feel weak or lightheaded and could
faint. Fainting is a mild form of shock. Of course, if someone has fainted they should
be treated as an unconscious patient.

As mentioned previously, the rescuer's observations of the accident scene and the
determination of the mechanism of injury can be very useful in forming a precautious
assumption that an injury may be present even if one is not necessarily obvious.

Always remember that some degree of shock may be present with any injury or ill-
ness.

Recognition

• Rapid breathing
• Weak, rapid pulse
• Restlessness or anxiety
• Pale, cool, clammy skin
• Shivering
• Bluishness of lips, nailbeds, and earlobes
• Thirst
• Nausea and vomiting
• Changes in levels of consciousness

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