Perfusion Flashcards
Perfusion (concept)
The flow of blood through arteries and capillaries delivering nutrients and oxygen to cells and removing cellular wastes.
Perfusion (definition)
A normal physiologic process that requires the heart to generate sufficient cardiac output to transport blood through patent blood vessels for distribution in the tissues throughout the body.
optimal perfusion
perfect function vessels are open heart is pumping good skin color good capillary refill pulse is present
impaired perfusion
septic and in shock
pt may be having a common cold
plaque developed in vessels (pt may be a smoker), this can cause BP to increase
no perfusion
necrosis / death
central perfusion
mechanisms for food delivery
generated by cardiac output
propels blood to all organs and their tissues
returns blood back to the heart (central perfusion, when impaired, affects the entire body)
local perfusion or tissue perfusion
volume of blood that flows through target tissues
supplied by blood flowing from arteries to capillaries
allows for delivery of O2, fluid, and nutrients
removal of cellular waste products