If a patient consistently excretes highly concentrated urine with elevated calcium and oxalate levels, but does *not* develop kidney stones, which mechanism is most likely protecting them?

💡 Explanation

Effective crystallization inhibitor activity prevents the growth of calcium oxalate crystals even in supersaturated urine, because these inhibitors bind to the crystal surfaces and impede further aggregation. Therefore, crystallization inhibition protects against stone formation, rather than relying on altered reabsorption or filtration.

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