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← Human Body & HealthIf a patient has damaged osmoreceptors, leading to decreased sensitivity to plasma osmolality, which consequence is most likely regarding water balance regulation during dehydration?
A)Increased ADH, reduced water reabsorption
B)Decreased thirst, increased water intake
C)Normal ADH response, decreased plasma osmolality
D)Reduced ADH, impaired water reabsorption✓
💡 Explanation
Damaged osmoreceptors impair the ADH negative feedback loop, because the body fails to correctly sense high plasma osmolality. Reduced ADH secretion results in less water reabsorption in the collecting ducts of the kidneys; therefore, dehydration worsens, rather than improves, because the body is not signaled to conserve water.
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