Certified Nursing Assistant (CNA) Prometric Practice Exam

What are elderly persons often at risk of due to a lack of thirst sensation?

1. Heart disease

2. Diabetes

3. Dehydration

4. Cognitive decline

The correct answer is: Dehydration

Elderly persons often experience a diminished thirst sensation, which can lead to inadequate fluid intake. This is particularly concerning because hydration is crucial for maintaining various bodily functions. When the elderly do not drink enough fluids, they are at a heightened risk of dehydration. Dehydration can have serious implications, including affecting kidney function and leading to electrolyte imbalances, which in turn can cause confusion, urinary tract infections, and other health problems. The elderly are also more susceptible to dehydration because their bodies may not retain fluids as effectively, and they may have chronic conditions or take medications that contribute to fluid loss. While other health issues can arise due to inadequate fluid intake, such as potential impacts on heart health or cognitive function, the direct consequence of a lack of thirst sensation is primarily dehydration. Understanding this connection is crucial for caregivers and healthcare providers in order to implement strategies that promote adequate hydration in elderly individuals.