Sodium urate is 15 times more soluble than
uric acid. At a
urine pH of 6.8, 10 times as much sodium urate as
uric acid is present. At a urine pH of 7.8, 100 times as much urate as uric acid is present"
"Surgical treatments may include ureteroscopic stone extraction, percutaneous nephrolithotomy, open stone surgery, and extracorporal shock wave lithotripsy.
Stones may need to be removed by a urologist. The technique used depends on stone size and location.