Ivy Tech CNA Program Exam 2 Practice 2026 - Free CNA Exam Practice Questions and Study Guide

Dehydration shows up when the body lacks enough fluids to support normal function. Dry mouth is a common early sign because saliva decreases as you lose fluids. Dizziness occurs as the circulating fluid volume drops, which can lower blood pressure and reduce blood flow to the brain. Confusion can happen, especially in older adults, due to impaired brain perfusion and electrolyte imbalances. Clear, pale urine, on the other hand, indicates adequate hydration (or even overhydration in some cases) and not dehydration. In practical terms, a CNA would note signs like dry mouth, dizziness, or confusion as potential dehydration and monitor fluid intake and output, reporting changes promptly.