Gourt Home::Gourt :: Capillary refill
Capillary refill is the rate at which blood refills empty capillaries. It can be measured by pressing a fingernail until it turns white, and taking note of the time needed for color to return once the nail is released. The capillary refill time (CRT) is a common measure of peripheral perfusion.
External links
"Capillary refill"