If an individual chronically overproduces parathyroid hormone, which consequence follows regarding kidney function?

💡 Explanation

Elevated parathyroid hormone causes increased calcium reabsorption from bone, leading to hypercalcemia and hypercalciuria. This, in turn, causes increased calcium oxalate crystallization and stone formation in the kidneys because supersaturation promotes precipitation of these salts. Therefore, chronic overproduction increases stone risk, rather than altering erythropoietin, potassium handling, or phosphate excretion significantly.

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