MKSAP: 54-year-old man with nephrolithiasis
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A 54-year-old man is evaluated during a follow-up visit for five previous episodes of nephrolithiasis. Two of these stones were composed primarily of uric acid. After his third episode, potassium citrate was initiated. Medical history is notable for type 2 diabetes mellitus, hypertension, and hyperlipidemia. He does not have a known history of gout. …