What happens to the sodium reabsorption in the proximal tubule when basolateral Na⁺/K⁺-ATPase is inhibited?
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Correct answer: Sodium reabsorption decreases
Inhibition of Na⁺/K⁺-ATPase disrupts the sodium gradient that drives sodium reabsorption across the proximal tubule, thereby reducing sodium (and consequently water) reabsorption.
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