Capillary refill
Test for the time taken for color to return to an external capillary bed after pressure is applied to cause blanching
Capillary refill time (CRT) is defined as the time taken for color to return to an external capillary bed after pressure is applied to cause blanching. It can be measured by holding a hand higher than heart-level and pressing the soft pad of a finger or fingernail until it turns white, then taking note of the time needed for the color to return once pressure is released.
Nº Q4581951 ★★
Uncommon · Knowledge
Capillary refill
Test for the time taken for color to return to an external capillary bed after pressure is applied to cause blanching
Capillary refill time (CRT) is defined as the time taken for color to return to an external capillary bed after pressure is applied to cause blanching. It can be measured by holding a hand higher than heart-level and pressing the soft pad of a finger or fingernail until it turns white, then taking note of the time needed for the color to return once pressure is released.
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From Wikipedia
Capillary refill time (CRT) is defined as the time taken for color to return to an external capillary bed after pressure is applied to cause blanching. It can be measured by holding a hand higher than heart-level and pressing the soft pad of a finger or fingernail until it turns white, then taking note of the time needed for the color to return once pressure is released. In humans, a CRT of more than three seconds indicates decreased peripheral perfusion and may indicate cardiovascular or respiratory dysfunction.
Text: Wikipédia, CC BY-SA 4.0. · Image: Glynda Rees Doyle and Jodie Anita McCutcheon (CC BY 4.0) ·
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