CAMRT Radiography Practice Exam

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What would be a visible sign of cyanosis in a patient?

Red skin
Yellowing skin
Bluish discoloration of the skin
White patches on the skin

The correct answer is: Bluish discoloration of the skin

Cyanosis is characterized by a bluish discoloration of the skin and mucous membranes, which occurs due to inadequate oxygenation of the blood. When blood oxygen levels drop, deoxygenated hemoglobin in the blood takes on a darker color, leading to this bluish appearance, particularly in areas with thinner skin, such as the lips, fingertips, and around the eyes. This bluish discoloration indicates that the body's tissues are not receiving sufficient oxygen, which can be a sign of various underlying health issues, including respiratory or cardiovascular problems. Recognizing cyanosis is important in clinical settings as it can prompt timely medical intervention. The other options do not indicate cyanosis: red skin may suggest inflammation or heat, yellowing of the skin can indicate jaundice (often due to liver issues), and white patches may be associated with conditions like vitiligo or fungal infections.