BSN Notes: Common Signs And Symptoms: Shock- Types of Shock,Hypovolemic shock


Types of Shock
1.       Cardiogenic
2.       Hypovolemic
3.       Distributive shock
·         Septic
·         Neurogenic
·         Anaphylactic
Impaired ability of the heart to pump
Loss of circulating intravascular volume.
Distributive shock
Misdistribution of circulating blood volume.
  • ·         Septic
  • ·         Neurogenic
  • ·         Anaphylactic

Result of microorganisms entering the body
Result of loss of sympathetic tone
Result of antigen antibody reaction

Hypovolemic shock
Result of intravascular blood volume depletion ie. Lack of circulating blood volume.
Common causes:  
·         Haemorrhage
·         GI ulcer
·         Vomiting
·         NG suction
·         Diarrhoea
·         Diuretic therapy
·         Diabetes insipidus
·         HyperGIycaemia
·         Liver diseases
·         Malnutrition
·         Blood coagulopathies
·         Bone marrow suppression
·         Haemophilia
·         Dehydration
·         Blood loss during major operations
Relative or absolute hypovolemia
Decreased circulatory volume
Decreased venous return to the heart
↓in stroke volume and CO
↓in tissue perfusion
O2 and nutrients supply to peripheral tissue
Impaired cellular metabolism

Clinical  features:
·         Initially diaphoresis
·         Anxiety , restlessness , altered mental state, hypotension , rapid , weak , thready pulse
·         Cool clammy skin, cyanosis
·         Rapid and shallow inspiration
·         Hypothermia         
·         Thirst and dry mouth
·         Fatigue
·         Cold and mottled skin
·         Correct underlying cause
·         Redistribute the blood volume by use of devices as pneumatic antishock stockings
·         Crystalloids NaCI (0.9%) or lactated ringers
·         Colloids Hydroxyethyl Starch (Voluven, Hetastarch), Polysaccharides (dextran), Polygeline (Haemaccel).
·         Combination of crystalloid and colloid solution  
·         Blood transfusion.
·         Vasoactive medications to restore vasomotor tone and improve cardiac function

·         Nutritional support to meet the metabolic requirements



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item BSN Notes: Common Signs And Symptoms: Shock- Types of Shock,Hypovolemic shock
BSN Notes: Common Signs And Symptoms: Shock- Types of Shock,Hypovolemic shock
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