The use of PICC infusion can only be used as a routine infusion in the ward, and the use of high-pressure syringe pumps to push the contrast agent through the PICC tube is prohibited when the patient is undergoing CT and MR*** vibration examinations. Try not to tie a tourniquet, needle, or take blood pressure in the arm on the side where the PICC tube is placed, and do not over-tighten the cuff of your clothing. You can use clean women's non-heeled socks or sheer socks, minus the toes and elastic bands, to prevent the catheter from coming out.