Hyperparathyroidism vs Idiopathic Hypercalciurea

This episode compares normocalcemic and hyperparathyroidism and idiopathic hypercalciuria, two primary drivers of hypercalciuria and nephrolithiasis. We contrast primary hyperparathyroidism, an autonomous parathyroid oversecretion causing elevated parathyroid hormone and true hypercalcemia, with idiopathic hypercalciuria, where serum calcium remains strictly normal despite excessive urinary calcium excretion.