SAVE YOUR GALLBLADDER!!!!!!!!!!!!!!
Drop everything you're doing this instant and pick up the phone and cancel the surgery, and do the FLUSH!!
The surgeon most likely will NOT want to even attempt to remove the stones surgically. I don't think there is a medical procedure to do this. The surgeon will most likely tell you stones cannot be removed surgically. In the surgeon's mind all that is going on is "$$$$$$$$ and a butcher knive" (or whatever it is they use to cut out the gallbladder).
But, why even think about surgically removing stones when you can remove them yourself with a flush? You need your gallbladder and you have the opportunity to save it. You are very fortunate that you found this site before the surgery. Many people find out after their gallbladders are gone that they could have saved it with a simple $10 procedure using natural ingredients of Epsom Salt and olive oil!! These people were not so lucky as YOU!