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← Human Body & HealthWhich outcome impairs body water homeostasis when antidiuretic hormone decreases?
A)Increased water excretion through osmosis✓
B)Reduced sodium chloride reabsorption actively
C)Elevated potassium secretion in nephrons
D)Inhibited bicarbonate ion buffering efficacy
💡 Explanation
Reduced ADH decreases aquaporins in the collecting duct, triggering increased water excretion because osmosis occurs less effectively to reabsorb water back into the blood; therefore, water retention suffers greatly, rather than altered electrolyte balance directly.
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