What is a common sign of dehydration that may be observed in patients?

Sunken eyes are a common sign of dehydration because when the body lacks adequate fluids, the skin and tissues around the eyes can lose elasticity and volume, resulting in a sunken appearance. This occurs due to the loss of water that leads to decreased interstitial fluid, making the eyes seem more recessed. In dehydrated patients, their overall skin turgor is often diminished, which can also contribute to this characteristic appearance.

Recognizing sunken eyes can be critical for healthcare providers as it serves as a visual cue for assessing fluid status in patients. Other signs of dehydration may include dry mucous membranes, reduced urine output, and changes in vital signs, but sunken eyes are particularly distinctive and easy to observe in physical examinations.