Which is a common sign of dehydration in residents?

A common sign of dehydration in residents is a dry mouth. When the body lacks adequate fluids, the salivary glands produce less saliva, leading to a dry or sticky feeling in the mouth. This can be particularly concerning for elderly individuals or those with certain health conditions, as they may not recognize their need for hydration. Dry mouth can also affect swallowing and lead to discomfort or difficulties in eating.

In contrast, increased appetite is typically not associated with dehydration; rather, it might indicate other health issues. Frequent urination can be a sign of adequate hydration or might indicate issues such as diabetes, but it does not directly signify dehydration. High energy levels are generally not linked to dehydration either, as dehydration often results in fatigue and lethargy due to the body's inability to function properly without sufficient fluids.