basic geriatric nursing 8th edition test bank Related

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How does dehydration impact older adults more than younger adults?

  • A. Older adults have a higher percentage of body water
  • B. Older adults have reduced kidney function and thirst sensation
  • C. Dehydration does not affect older adults more significantly
  • D. Older adults are less prone to dehydration
Correct Answer: B

Rationale: The correct answer is B because older adults have reduced kidney function, which impairs their ability to concentrate urine and retain water. Additionally, they may have a diminished thirst sensation, making them less likely to drink enough fluids. This combination of factors makes older adults more vulnerable to dehydration compared to younger adults.

Choice A is incorrect because older adults actually have a lower percentage of body water due to age-related changes in body composition. Choice C is incorrect as dehydration can indeed have a more significant impact on older adults due to their physiological changes. Choice D is incorrect as older adults are actually more prone to dehydration due to various age-related factors.