Veterinary IV CFE Practice Test

Assessing hydration status relies on signs that reflect both fluid balance and peripheral blood flow. Skin turgor shows how elastic the skin is; when a patient is dehydrated, the skin tends to stay tented and return to normal more slowly. Mucous membrane moisture indicates how well hydrated the mucous membranes are—dry or tacky membranes point to dehydration. Capillary refill time measures how quickly color returns to the mucous membranes after pressing; a slower-than-normal refill suggests reduced circulating volume or poor perfusion, common with dehydration.

Together, these three signs give a quick, practical snapshot to guide fluid therapy. Respiratory rate can be affected by many factors besides hydration, so it isn’t a reliable hydration indicator, and fur color or ear temperature don’t reflect hydration status.