An Asian Man With Recurrent Kidney Stones

A 60-year-old Asian man with history of recurrent nephrolithiasis, congenital solitary left kidney, gout, hypertension, pre-diabetes was seen in nephrology clinic. Since his 20's, he has had multiple lithotripsy and ureteral stenting procedures to remove stones and to relieve hydronephrosis. He has a strong family history of kidney stones and gout.

His creatinine was 1.5 mg/dL at the initial visit. It ...