Cyanosis classification: Difference between revisions
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==Overview== | ==Overview== | ||
'''Cyanosis''' can occur in the [[finger]]s, including underneath the [[nail (anatomy)|fingernails]], as well as other extremities (called ''peripheral cyanosis''), or in the [[lip]]s and tongue (''central cyanosis''). | |||
==Classification== | ==Classification== | ||
=== Central cyanosis === | === Central cyanosis === | ||
Central cyanosis is often due to a circulatory or ventilatory problem that leads to poorer blood [[oxygenation]] in the lungs or greater oxygen extraction due to slowing down of blood circulation in the skin's blood vessels. | Central cyanosis is often due to a circulatory or ventilatory problem that leads to poorer blood [[oxygenation]] in the lungs or greater oxygen extraction due to slowing down of blood circulation in the skin's blood vessels. | ||
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==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
Revision as of 23:06, 29 August 2012
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Cyanosis Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Cyanosis classification On the Web |
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American Roentgen Ray Society Images of Cyanosis classification |
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Risk calculators and risk factors for Cyanosis classification |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Cyanosis can occur in the fingers, including underneath the fingernails, as well as other extremities (called peripheral cyanosis), or in the lips and tongue (central cyanosis).
Classification
Central cyanosis
Central cyanosis is often due to a circulatory or ventilatory problem that leads to poorer blood oxygenation in the lungs or greater oxygen extraction due to slowing down of blood circulation in the skin's blood vessels.
Peripheral cyanosis
Peripheral cyanosis is the blue tint in fingers or extremities, due to inadequate circulation. The blood reaching the extremities is not oxygen rich and when viewed through the skin a combination of factors can lead to the appearance of a blue color. All factors contributing to central cyanosis can also cause peripheral symptoms to appear, however peripheral cyanosis can be observed without there being heart or lung failures. Small blood vessels may be restricted and can be treated by increasing the normal oxygenation level of the blood.