When caring for older clients the nurse should recognize that they are at risk for dehydration related to:
1. decline of the thirst mechanism in the hypothalamus.
2. excessive antidiuretic hormone (ADH) released by the posterior pituitary.
3. renal failure.
4. altered mobility.
Answer: 1
1. The primary regulator of water intake is thirst, and this mechanism declines in the elderly.
2. With excessive antidiuretic hormone release more water is reabsorbed, fluid volume increases, and urine output is scant and concentrated.
3. Renal failure will cause fluid volume overload.
4. Altered mobility does not cause dehydration.
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