When you hear someone say that a patient is cyanotic, that means their skin or mucous membranes developed a bluish or purplish discoloration. It is more noticeable on the parts of the body that are usually pinkish, such as the fingernails or the lips. This condition, called cyanosis, occurs because of low oxygen levels.
We call it cyanotic heart disease because the defect’s main symptom is cyanosis. However, it also comes by another name, which is critical congenital heart disease or CCHD.
Please take into consideration that the level of cyanosis depends on how low the oxygen level is. If it only drops a little, it may be hard to detect cyanosis.
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