What is a common sign of dehydration in the elderly?

Dry skin and mucous membranes are indeed common signs of dehydration in the elderly. As individuals age, their bodies may lose the ability to sense thirst and maintain proper hydration levels effectively. When dehydration occurs, a noticeable effect on the skin and mucous membranes can be observed; the skin may appear flaky or dry, and the mucous membranes in the mouth may also become dry, which can lead to discomfort and increased risk of complications.

In many cases, older adults do not recognize when they are dehydrated, making awareness of these physical signs crucial. Unlike some of the other options, which do not align with the typical physiological responses to dehydration, the appearance of dry skin and mucous membranes presents a clear indication that the body lacks sufficient fluids. Understanding these signs can help caregivers and healthcare providers take timely action to rehydrate elderly patients and prevent more serious health issues.