What is an indicator of dehydration in older adults?

In older adults, dehydration can manifest through various symptoms, and all the options presented are indicative of potential dehydration.

A change in mental status is particularly important to recognize since dehydration can lead to confusion, lethargy, and cognitive impairment. The brain is highly sensitive to changes in hydration status, and even mild dehydration can impact cognitive functions in older individuals.

A pulse rate greater than 100 beats per minute can also be a sign of dehydration. When the body is dehydrated, it compensates by increasing heart rate to maintain blood pressure and ensure adequate blood flow to vital organs. This compensatory mechanism indicates that the body is under stress, often caused by insufficient fluid levels.

Frequent falls can be linked to dehydration as well. Dehydration can lead to dizziness and weakness, increasing the risk of falls. Additionally, if an older adult is confused or disoriented due to dehydration, this can further elevate the likelihood of accidents.

Since all these signs are interconnected and can present together or individually to indicate dehydration, the correct answer encompasses all the potential symptoms that may arise in dehydrated older adults.