Shock

Part 3: Chapter 9

Body Functions…. 3 conditions are needed to maintain

adequate blood flow in the body: The heart must be working well An adequate amount of oxygen-rich blood

must be circulating in the body The blood vessels must be intact and able to

adjust blood flow

What is Shock? A progressive condition in which the

circulatory system fails to circulate oxygen-rich blood to all parts of the body.

Vital organs begin to shut down

What Causes Shock? Severe injuries, involving rapid blood loss Any significant fluid loss

Bleeding Vomiting Diarrhea

Domino Effect

Common Types and Causes of Shock

Anaphylactic

Life-threatening allergic reaction to a substance

May cause airway to swell, affecting ability to breathe

Can occur from insect stings or from food and drugs

Cardiogenic

Failure of the heart to effectively circulate blood to all parts of the body

Occurs with heart attacks

Common Types (cont)

Hypovolemic

Severe bleeding or loss of blood plasma

Occurs with internal or external wounds or burns or with severe fluid loss, as from vomiting and diarrhea

Common Types

Neurogenic

A disruption of the autonomic nervous system, which results in the blood vessels expanding and creating a drop in blood pressure

Can be caused by fluid loss, trauma to the nervous system or emotional shock

Fainting EX Spinal injury

One More…

Septic

Toxins caused by severe infection cause the blood vessels to dilate

Signs & Symptoms Restlessness or irritability Altered state of consciousness Pale or ashen, bluish, cool or moist skin Rapid breathing Rapid and weak pulse Excessive thirst Nausea or vomiting

Care for Shock Help the victim lie down on his or her back Elevate the legs about 12 inches to help blood

circulate to the vital organs Do not elevate the legs if:

Victim is nauseated or having trouble breathing You suspect a head, neck or back injuries or

possible broken bones involving the hips or legs Moving causes more pain. If you are unsure of the

victims condition or if it is painful for him or her to move, leave the victim lying flat

Care for Shock Monitor the victims breathing and

consciousness Keep the victim from being chilled or

overheated Make them as comfortable as possible

Reassure the victim Control external bleeding DO NOT give the victim anything to eat or

drink

Care for shock