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Capillary Nail Refill Test
Alternate Names : Capillary Refill Time, CRT, Nail Blanch Test
DefinitionThis quick test is performed on the nail beds o monitor tissue perfusion (the amount of blood flow to tissue) and dehydration.
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Why is the Test Performed?
Oxygen, which is critical to the survival of tissue, is carried to various parts of the body by the blood (vascular) system. This test measures how well the vascular system is functioning in your extremities. If you are dehydrated, or tissue perfusion is blocked by other means, this quick test can alert you or your health care provider that care needs to be taken to restore normal vascular flow.
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Definition Why is the Test Performed? How is the Test Performed? How to Prepare for the Test? How will the Test Feel? Normal Values What do Abnormal Results Mean? Risks
Pictures & Images
Topics that might be of interest to you Diseases & Conditions
Arteriosclerosis of the Extremities Dehydration
Other Topics
Hypothermia Shock
Review Date : 8/18/2003
Reviewed By : Daniel Levy, M.D., Ph.D., Infectious Diseases, Greater Baltimore Medical Center, Baltimore, MD. Review provided by VeriMed Healthcare Network.
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