DISORDER OF THE CIRCULATION


Shock

Definition

Shock is a condition where there is a failure in the circulatory system leading to insufficient oxygen supply to the vital organs in the body, such as the brain, heart, lungs and kidneys.

Shock can lead to death if not treated quickly and adequately. It is possible to prevent shock, or limit its severity if appropriate action is taken early.

Causes of Shock can result from many different conditions, including respiratory and circulatory failure, acute allergic reaction and overwhelming infection. Example:

  • Injury or trauma
  • Profuse bleeding
  • Hearts attack
  • Stroke
  • Abdominal emergencies
  • Severe dehydration in burns, food poisoning
  • Extreme allergy to food, drug or insect stings (Anaphylactic shock)

  
Sign and Symptoms

  • Restless, anxiety and fear (common indicator of shock)
  • Cold, clammy, sweaty, pale skin
  • Thirst
  • Nausea or vomiting
  • Breathing rapid and shallow
  • Pulse rapid and weak
  • Weakness or fainting
  • Unconsciousness may develop


General Treatment For Shock

Aims:

-  To recognise shock
-  To treat victim according to the cause of shock
-  To improve blood supply to the brain, heart and lungs
-  To urgent medical attention

Be calm and provide reassurance to the victim.
Determine the cause of shock and check the ABC’s.
In general, lay the victim flat on the back (supine position) on a horizontal surface. If no fractures or spinal injury are suspected, elevate the victim’s legs 12 to 18 inches off the floor or ground (on two or three pillows). This allows some blood in the legs to return to the heart more rapidly.

DO NOT elevate the legs if the victim has a head injury or chest injury, or victim with breathing difficulties. If victim is having chest pain in cases of heart attack or who has lung disease, place the victim in a half-sitting position.

DO NOT give the victim anything by mouth.
Administer high-flow oxygen. Loosen tight clothing.
Cover with blanket to maintain normal body temperature.
Monitor and record the vital signs every 10-15 minutes. Seek urgent medical assistance and keep captain informed of victim’s progress. Be prepared to resuscitate.