Shock Flashcards
Level of shock ( 3 )
Compensating
De compensating
Irreversibly
Compensating Shock
Increased HR
Increased RR
Weak pulse
Cool, clammy skin
Decreased UO
Vasoconstriction
5%-30% blood loss
De Compensating shock
Weak or absent pulse
Dropping BP
ALOC
Greatly delayed CRT
Reduced SV ( stroke volume )
30%-40% blood loss
Irreversible
Cell death
Organ failure
Blood sludges
Systemic acidosis
Death
Greater than 40% blood loss
Types of shock
Hypovolaemic shock
Anaphylactic shock
Septic shock
Neurogenic shock
Hypoadrenal shock
Obstructive shock
Cardiogenic shock
Hypovolaemic shock
Inadequate intravascular volume
Blood loss
Sever dehydration
Loss of fluid
Anaphylactic shock
Due to mediators released in response to a severe allergic reaction
Septic shock
Caused by inflammatory mediators being released in response to severe infection
Stages of sepsis
Sepsis
Severe sepsis
Septic shock
Neurogenic shock
Spinal cord injury ( SCI )
Neurogenic shock is caused by sudden loss of signals from the sympathetic nervous system following a SCI resulting in vasodilation causing intravascular volume loss
Hypoadrenal shock
Hypoadrenal shock is caused by inadequate levels of circulating cortisol
Obstructive shock
A physical blockage within the heart or major blood vessels
-Tension pneumothorax
-Pulmonary embolism ( PE )
-Cardiac tamponade
Cardiogenic shock
Cardiogenic shock is when the heart is no longer effectively pumping blood to meet the body’s need
- STEMI
MI largely affecting the left ventricle impairing the hearts ability of contracting
Other examples
- Myocarditis
- Acute valve rupture
- Dysrhythmia / VT
What is shock
Widespread inadequate tissue perfusion at a cellular level.
Perfusion is the process of oxygenated blood being delivered to the body tissues that require it, but also includes the removal of metabolic waste, such as carbon dioxide.
