Colorado CNA Practice Exam

Dizziness is a common sign of dehydration because when the body lacks sufficient fluids, it can lead to reduced blood volume and changes in the balance of electrolytes, which can affect blood flow to the brain. This can result in feelings of lightheadedness or dizziness, especially when standing up quickly. Recognizing dizziness as a symptom is crucial, as it indicates that the body is not maintaining adequate hydration levels to support normal functioning.

In contrast, fluid retention is often a result of the body holding onto excess fluid, which differs from dehydration. An increased appetite is not typically associated with dehydration, as the body usually reacts to lack of fluids with reduced thirst or appetite. Likewise, swollen ankles can signify conditions unrelated to hydration levels, such as heart or kidney problems, rather than dehydration itself. Understanding these distinctions helps in recognizing dehydration effectively and responding appropriately.