To get ready for a retrograde intrarenal surgery (RIRS), you should: Talk to your surgeon about the pros and cons of the surgery. Get any blood tests or imaging tests that need to be done done before the surgery. Follow your doctor’s advice about what to take, what to eat, and how much you can do. Tell your surgeon if you have any allergies or health problems. Plan for someone ... https://thecurestone.com/rirs/