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Kidney Stones

Update in Diagnosis and Management


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Causes of Hypercalciuria

Slide 12

February 2010

Hypercalciuria is the most common urine finding in patients with calcium oxalate stones. Most of these patients have hypercalciuria due to genetic causes, which was previously called idiopathic hypercalciuria. It's important to think about primary hyperparathyroidism, which is a correctable cause of stones. Fortunately, a normal fasting serum calcium is a very good screen to rule this out, and we do not recommend routinely checking a PTH level unless the patient is hypercalcemic. Other causes of hypercalciuria listed here are more unusual, and can be detected by considering other features of the history and/or physical exam.

Causes of Hypercalciuria


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