What instruction should a nurse give to an elderly patient showing signs of dehydration?

The instruction to drink more water to prevent further dehydration is appropriate for an elderly patient exhibiting signs of dehydration because water is essential for maintaining proper bodily functions. In older adults, the sensation of thirst diminishes, which can lead to decreased fluid intake and subsequently to dehydration. By encouraging water consumption, the nurse promotes hydration, supporting cellular processes, circulation, and body temperature regulation, all of which can be particularly compromised in the elderly.

It’s also crucial to note that while calorie-dense fluids may provide additional energy, they might not adequately address hydration needs. Increasing intake of solid foods could contribute to hydration, but it does not replace the need for fluid intake, particularly when signs of dehydration are evident. Limiting fluids can exacerbate dehydration and is not a suitable recommendation for someone already showing signs of this condition.