What Are Capillaries?
Reviewed: Dr. Gromatzky
9. Capillary Refill
As mentioned, it is normal for the skin to return to its normal color as soon as pressure has been removed the skin. If this does not happen, then it indicates that something is wrong with the circulation.
This is performed as a test for what is known as “capillary refill,” and it is often done by paramedics that wish to perform a quick check of the patients circulation on site. Another medical term involving capillaries is “capillary permeability.” This refers to how easily or otherwise fluids are able to pass through the capillary walls. If there is more fluid leaking through (third spacing) then it can result in hives. In more severe cases, the whole body can become swollen.
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