A gerontologic nurse is teaching students about the high incidence and prevalence of dehydration in older adults. What factors contribute to this phenomenon? Select all that do not apply.

The correct answer is D: Increased conservation of sodium. Older adults tend to have an increased conservation of sodium, leading to fluid retention and decreased fluid intake, which can contribute to dehydration.

A: Decreased kidney mass is incorrect because it is a factor that can contribute to decreased kidney function but not directly linked to dehydration.

B: Decreased renal blood flow can impact kidney function but is not a direct cause of dehydration in older adults.

C: Decreased excretion of potassium is not a factor that directly contributes to dehydration in older adults.