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[cyano- + -sis] A blue, gray, slate, or dark purple discoloration of the skin or mucous membranes caused by deoxygenated or reduced hemoglobin in the blood. Cyanosis is found most often in hypoxemic patients and rarely in patients with methemoglobinemias. Occasionally, a bluish skin tint that superficially resembles cyanosis results from exposure to the cold. In the very young patient, cyanosis may point to a congenital heart defect.> cyanosed (sī′ă-nōst″, sī′ă-nōzd″ ), adj.
ETIOLOGY This condition usually is caused by inadequate oxygenation of the bloodstream.
TREATMENT Supplemental oxygenation is supplied to cyanotic patients who are proven to be hypoxemic. SEE: asphyxia
Oximetry or arterial blood gas analysis should be used to determine whether a patient is adequately oxygenated. Relying only on the appearance of the skin or mucous membranes to determine hypoxemia may result in misdiagnosis.
Venes, Donald, editor. "Cyanosis." Taber's Medical Dictionary, 23rd ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/766439/1/cyanosis.
Cyanosis. In: Venes D, ed. Taber's Medical Dictionary. 23rd ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/766439/1/cyanosis. Accessed August 22, 2019.
Cyanosis. (2017). In Venes, D. (Ed.), Taber's Medical Dictionary. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/766439/1/cyanosis
Cyanosis [Internet]. In: Venes D, editors. Taber's Medical Dictionary. F.A. Davis Company; 2017. [cited 2019 August 22]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/766439/1/cyanosis.
* Article titles in AMA citation format should be in sentence-case
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T1 - cyanosis
ID - 766439
ED - Venes,Donald,
BT - Taber's Medical Dictionary
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PB - F.A. Davis Company
ET - 23
DB - Nursing Central
DP - Unbound Medicine