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Kidney Stones

Update in Diagnosis and Management

Common Features Increase Urinary Supersaturation in Patients with Idiopathic Calcium Oxalate Nephrolithiasis

Slide 10

February 2010

You will initially review urinary risk factors that are associated with idiopathic calcium oxalate stones. Increased urinary amounts of calcium, uric acid, and oxalate, as well as reduced citrate are often present and drive an increase calcium oxalate supersaturation. A sizable minority have no clear metabolic abnormality, except for perhaps reduced urinary volume. Many patients will have more than one risk factor, for example high calcium and low volume.

Common Features


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