Which of the following symptoms is NOT associated with dehydration in dogs?

In the context of dehydration in dogs, increased energy levels is not typically associated with this condition. When a dog is dehydrated, it generally experiences a decline in energy due to reduced fluid levels affecting overall body function, including circulation, digestion, and thermoregulation.

Dehydration commonly leads to symptoms like lethargy, where the dog appears weak and less active. Sunken eyes are a physical manifestation of dehydration, as fluid loss can cause the eyes to appear less plump and more sunken into the skull. Delayed capillary refill time is also a significant indicator of dehydration; it occurs when reduced blood volume leads to slower blood circulation, causing the gums to take longer to return to their normal color after being pressed.

In contrast, increased energy levels would suggest that the dog is well-hydrated and in good health, making this option the correct choice as it does not align with the typical symptoms of dehydration.