question: My 88 year old mother has had two lithotripsies to remove a large kidney stone. The first one only removed 4 mm. of an 11 mm. kidney stone. She hasn t passed any matter from the last lithotripsy, which was done two weeks ago, I take her to her urologist tomorrow. What is the next alternative for her to have the remainder of the kidney stone removed if I don t want another lithotripsy?