What term is used to describe the bluish or gray skin color often associated with a lack of oxygen?

• A. Cyanosis
• B. Pallor
• C. Icterus
• D. Flushing

Answer: (A)

Cyanosis refers to the bluish or gray skin color that occurs when there is a deficiency of oxygen in the blood. This condition can arise from various respiratory or circulatory issues, where the oxygen saturation in arterial blood drops, leading to a noticeable change in skin color. The presence of cyanosis is an important clinical sign and can help healthcare providers identify underlying medical conditions that necessitate further evaluation and intervention.

Pallor, in contrast, indicates a paleness of the skin often due to reduced blood flow or hemoglobin, typically seen in conditions like anemia or shock. Icterus, also known as jaundice, is characterized by a yellowing of the skin and eyes due to elevated bilirubin levels, commonly seen in liver disorders. Flushing encompasses a reddening of the skin, usually as a response to increased blood flow or temperature changes, and does not pertain to oxygen deficiency. Thus, the specific term that directly correlates with a lack of oxygen is cyanosis.