What does ureteroscopy need to prepare for lithotomy?

The preparations for ureteroscopic lithotomy are as follows: First, because after the operation, the patient needs to be hospitalized for observation, so some imaging examinations should be done before the operation, such as CT, B-ultrasound, etc., to determine the specific location, size, hardness, etc. of the stone, and also to understand whether there is ureteral malformation, or ureteral inflammation infection. Second, due to the need for anesthesia before ureteroscopy, it is necessary to conduct a comprehensive examination of kidney, liver function, lung function, etc. to ensure the safety of anesthesia surgery. Third, it is necessary to explain to the patient in detail before the operation, so that the patient understands the characteristics of the operation and the possibility of recurrence, because any operation has certain risks and cannot completely guarantee the removal of stones.