Cyanosis classification: Difference between revisions
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==Overview== | ==Overview== | ||
[[Cyanosis]] is defined as bluish discoloration of the [[skin]] and or mucous membrane resulting from insufficient [[oxygenation]] of the [[blood]] and the presence of at least 5g/dl unsaturated [[hemoglobin]] in tissue. . [[Anemia]] may lead to [[hypoxia]] but is not the cause of [[cyanosis]]. Right to left shunt in [[congenital heart disease]] causes [[central cyanosis]]. [[Secondary erythrocytosis (increased [[red blood cell mass ]] due to [[hypoxia]]) and [[polycythemia]] (neoplastic proliferation of [[reb blood cell]]) are different condition and need different evaluation. | |||
==Classification== | ==Classification== | ||
Revision as of 08:07, 28 October 2020
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sara Zand, M.D.[2] Amandeep Singh M.D.[3]
Overview
Cyanosis is defined as bluish discoloration of the skin and or mucous membrane resulting from insufficient oxygenation of the blood and the presence of at least 5g/dl unsaturated hemoglobin in tissue. . Anemia may lead to hypoxia but is not the cause of cyanosis. Right to left shunt in congenital heart disease causes central cyanosis. [[Secondary erythrocytosis (increased red blood cell mass due to hypoxia) and polycythemia (neoplastic proliferation of reb blood cell) are different condition and need different evaluation.
Classification
- Cyanosis may be classified into two groups:[1]
- Peripheral cyanosis affecting hands and feet
- Central cyanosis affecting lips, tongue and sublingual tissue
References
- ↑ McMullen, Sarah M.; Patrick, Ward (2013). "Cyanosis". The American Journal of Medicine. 126 (3): 210–212. doi:10.1016/j.amjmed.2012.11.004. ISSN 0002-9343.