shock Flashcards
4 different kinds of shock? (CHOD)
cardiogenic, hypovolaemic, obstructive, distributive
what type of shock does a tension pneumothorax cause?
obstructive - causing decreased venous return
examples of distributive shock?
neurogenic, vasoactive
examples of obstructive shock?
cardiac tamponade, tension pneumothorax, PE, severe aortic stenosis
Cardiac Output (CO) definition?
volume of blood pumped by each ventricle of the heart per minute
Stroke Volume
volume of blood pumped by each ventricle of the heart per heart beat
what causes vasoactive shock?
release of vasoactive mediators
treatment for tension pneumothorax?
large bore canula in 2nd intercostal space mid clavicular line
Compensatory mechanisms can maintain blood pressure until what percentage of total blood volume lost?
30%
when do you get a decrease in mean arterial blood pressure?
when you lose more than 30% of total blood volume
name of the auto regulation of cerebral blood flow with increasing MAP?
myogenic response