Bovis ISSN 2398-2993

Neonatology: cyanosis

Synonym(s): Hypoxia, deoxygenated hemoglobin

Contributor(s): Mike Reynolds , Alex Dugdale

Overview

  • Cyanosis is the bluish discoloration of skin, conjunctivae and visible mucus membranes that results from an increase in the absolute amount of deoxygenated hemoglobin in the blood.
    • Usually defined as more than 5d/dL of deoxygenated hemoglobin in the blood – hence very anemic animals can never be cyanotic.
  • In neonatal calves cyanosis may be caused by a number of conditions including septicemia, hypothermia, congenital heart defects, respiratory compromize or disease, or any circulatory disorder causing a right to left shunt.

Classification of Cyanosis

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Diagnosis

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Prognosis

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Further Reading

Publications

Refereed Papers

Other sources of information

  • Lofstedt J, Wilson W D & Lakritz J (2015) Alterations in Respiratory Function. In: Smith B P Large Animal Internal Medicine. 5th edn. 302-338.
  • House J K, Smith G W, McGuirk S M, Gunn A A & Izzo M (2015) Manisfestations and Management of Disease in Neonatal Ruminants. In: Smith B P Large Animal Internal Medicine. 5th Edition. pp 302-338.


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