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Shock, Types of

Page history last edited by PBworks 12 years ago

Types of Shock

 

Hypovolemic

Shock caused by loss of blood or body fluids.

Causes of Hypovolemic Shock obviously include blood loss due to trauma, this type of shock can also occure with plasma loss due to burns or other fluid loss due to large amounts of vomiting, diarrhea, sweating and urination. You may also see Hypovolemic Shock with third space fluid shifts.

 

Distributive

Shock that results from mechanisms that prevent the appropriate distribution of nutrients and removal of metabolic waste products.

Examples are Anaphylactic, Septic, Hypoglycemic and Anemia Crisises

 

Obstuctive

Shock resulting from interference with the blood flowing through the cardiovascular system.

Causes of Obstructive Shock include Tension Pneumothorax, Cardiac Tamponade and Pulmonary Emboli

 

Cardiogenic

Shock resulting from failure to maintain the blood presure because of inadequate cardiac output.

Causes of Cardiogenic Shock are simply problems with the heart, the pump. Mortality rate is very high with this type of shock. Patients present with similar signs and symptoms of myocardial infarction or pulmonary edema

 

Respiratoy

Shock resulting from failure of the respiratory system to supply oxygen to the alveoli or remove CO2 from them.

Causes of Respiratory Shock include flail chest, respiratory muscle paralysis, pneumothorax and tension pneumothorax. Cells become hypoxic while the bloodstream becomes acidotic.

 

Neurogenic

Type of shock resulting from an interruption in the communication pathways between the central nervous systemand the rest of the body leading to decreased perpheral vascular resistance.

Causes of Neurogenic Shock can include a spinal or head injury. These injuries could be permanent or temporary. Skin will classically be warm and pink below the injury and appear "shocky" (pale, cold, clammy) above the line of injury.

 

Sources

Brady Paramedic Care Volume 4 Trauma Emergencies

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