Definitions for capillary refill
This page provides all possible meanings and translations of the word capillary refill
The refilling of empty capillaries by blood
An assessment of the rate of refilling of blood capillaries after having applied pressure; used as a diagnostic procedure
Capillary refill is the rate at which blood refills empty capillaries. It can be measured by holding a hand higher than heart-level, pressing the soft pad of a finger or toe until it turns white, and taking note of the time needed for the color to return once pressure is released. Normal refill time is less than 2 seconds. In newborn infants, capillary refill can be measured by pressing on the sternum for five seconds with a finger or thumb, and noting the time needed for the colour to return once the pressure is released. The upper normal limit for capillary refill in newborns is 3 seconds. The capillary refill time is a common indication of dehydration and decreased peripheral perfusion. It is generally accepted that the test can be highly variable between different patients, and therefore should not be relied upon as a universal diagnostic measure. It is however very useful as supporting evidence for a positive sign of poor perfusion to the extremities. The CRT test is often referred to as the Nail blanch test. A CRT can also be assessed in animals by pressing on their gums as opposed to the sternum which is generally covered with fur or inaccessible.
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"capillary refill." Definitions.net. STANDS4 LLC, 2014. Web. 23 Aug. 2014. <http://www.definitions.net/definition/capillary refill>.