What is a common sign of dehydration in older adults?

Dry skin and mucous membranes are indeed common signs of dehydration in older adults. As individuals age, their body’s ability to conserve water and thirst sensation may diminish, making them more susceptible to dehydration. When dehydration occurs, the skin often becomes less elastic and may feel dry. Mucous membranes, such as those in the mouth and around the eyes, can also become dry, indicating a lack of adequate hydration.

On the other hand, fever is not a definitive sign of dehydration; it can be associated with various infections or other illnesses. Increased blood pressure is typically not associated with dehydration; rather, it may decrease due to hypovolemia or fluid loss. Increased appetite is not a sign of dehydration and is often unrelated, as dehydration can sometimes lead to decreased appetite due to symptoms such as nausea or lethargy. Thus, the presence of dry skin and mucous membranes serves as a clear indicator of dehydration in this population.