B. head trauma. Dicitroke. 3. In which of the following medical conditions is cyanosis (blue or gray skin) most likely to be one of the signs? A. Low blood sugar B. Excessive heat C. Alcohol overdose D. Lack of oxygen isht CO 2021 Pearson Education, Ine.

## Step 1<br />Cyanosis is a medical condition characterized by a bluish or grayish discoloration of the skin and mucous membranes. This is due to a lack of oxygen in the blood.<br />## Step 2<br />The options provided are Low blood sugar, Excessive heat, Alcohol overdose, and Lack of oxygen. We need to identify which of these conditions is most likely to cause cyanosis.<br />## Step 3<br />Low blood sugar, excessive heat, and alcohol overdose do not directly cause cyanosis. These conditions may lead to other symptoms, but they do not directly result in a lack of oxygen in the blood.<br />## Step 4<br />Lack of oxygen, however, is a direct cause of cyanosis. When the body does not receive enough oxygen, the skin and mucous membranes can appear blue or gray, which is the characteristic sign of cyanosis.