What are the preoperative considerations for kidney biopsy? 1. Diet. On the day of surgery, eat semi-liquid, do not eat cold, indigestible, easy to bloat and other foods, but not too full, and not fasting. 2.Position training. Practice the intraoperative position, i.e. prone position. 3.Breathing exercises. Practice inhalation followed by breath-holding action. 4.Strengthen bed feeding training. Prepare supplies for bed feeding, such as: straws, spoons, etc. Train to eat in bed 3 to 5 times. 5.Strengthen the training of urination and defecation in bed. Practice using the commode 3 to 5 times. 6.Female patients do not undergo renal biopsy during menstruation in general, but it can be considered if the conditions are fully evaluated. 7.Notify family members to come to the hospital to accompany the patient on the day of surgery before surgery.