Shock, Resuscitation, and AED Flashcards
Perfusion
adequate circulation of oxygenated blood throughout the body
Shock/hypoperfusion
inadequate tissue perfusion
Compensated Shock
Early stage of shock where the body is able to compensate through defense mechanisms
Decompensated Shock
Late or progressive shock where the body can no longer compensate and BP starts to fall
Irreversible Shock
Unsurvivable stage
3 Primary Causes of Shock
Heart problems
Blood Vessel problems
Fluid problems
Tachycardia
when there is a loss of circulating blood volume, the body will increase the heart rate to compensate
Peripheral Vasoconstriction
Body will constrict peripheral blood vessels to try and increase blood pressure and increase perfusion to vital organs
What is considered a late sign of shock?
falling blood pressure
Cardiogenic Shock
when the heart muscle cannot pump effectively, causing a backup of fluid
Pulmonary Edema
accumulation of fluid in the lungs
Signs and Symptoms of Cardiogenic Shock
hypotension cardiac history chest pain respiratory distress pulmonary edema altered level of consciousness
Obstructive Shock
Pump problem caused by mechanical obstruction of the heart muscle
Cardiac Tamponade
fluid accumulates within the pericardial sac and compresses the heart
Jugular Vein Distention (JVD)
filling of jugular veins in the neck
Signs and symptoms of Cardiac Tamponade
JVD
Narrowing pulse pressures
hypotension
Tension Pneumothorax
air enters the chest cavity due to a lung injury of sucking chest wound
Distributive Shock
Occurs due to widespread vasodilation causing blood to pool and relative hypovolemia
Relative Hypovolemia
low volume relative to the size of the vascular space
Anaphylactic Shock
Severe allergic reaction due to massive vasodilation, fluid leakage, or bronchoconstriction
Neurogenic Shock
Caused by spinal chord damage and interrupts the communication between the CNS and the peripheral nervous system
Septic Shock
caused by severe infection damaging blood vessels and increasing plasma loss out of the vascular space
Psychogenic Shock
caused by temporary vasodilation leading to syncope
Hypovolemic Shock
when you lose more than 20% of your bodies blood or fluid
