Central cyanosis

Author:Prof. Dr. med. Peter Altmeyer

Last updated on: 29.10.2020

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DefinitionThis section has been translated automatically.

Reduced O2 saturation of the arterial blood (pulse oximetry). Clinical sign is cyanosis of skin and tongue/oral mucosa.

Note(s)This section has been translated automatically.

Lewis test: After compression of the earlobe (until the capillary pulse occurs) the earlobe remains bluish-cyanotic in central cyanosis. In peripheral cynaosis the blue discoloration disappears.

Authors

Last updated on: 29.10.2020

Author: Prof. Dr. med. Peter Altmeyer