Thank you for your input. Yes we are doing as you say regarding confirmed infections. (pulling out the existing line, waiting 48hrs and reinserting new line) The cases that we recently had were for blocked, malfunctioning lines, or exposed cuff. We have been doing much the same as you describe. We use a non scrub nurse and another tech to clean the old tube with a dressing tray while the scrub nurse prepares the procedure tray. Cleaning the tube really well with chlorhexidine. The assistant holds the tube up (with sterile gloves on) as this part can be very awkward. We take off the old caps, clean the ends and put clean ones on. Then we wrap a sterile gauze around the clamps, thin enough so the radiologist can feel them to manipulate them (secured with steristrips) and then he/she can hold on to the tube without actually touching it. The radiologist and scrub nurse change gloves after the old tube is removed. This is all vey time consuming but but not as much as an infected line. We do a lot of these and we are trying to be as consistent as possible. The radiologist is convinced that 2 recent line infections were due to us because it was within 48 hours of us putting them in. I will certainly read the pdf. Thanks!