I have noted on long term G tube placement that it is the lack of care to the insert site that causes problems rather than a specific type of dressing. The patient or caregiver should be taught to gently clean site with warm water and soap, pat dry gently, and examine site for s/s of breakdown. If site is clear apply dressing of either split drain 4 x 4's or regurlar 4 x 4's folded over. It will depend on physicians order. If insert site is red, oozing purulent drainage or has edema, physician needs to be called for orders. Here we usually apply an antibiotic ointment to site after cleaning and then dressing. G tube care should be done daily or every other day at least. Care of the tube does include flushing with water, at least 60 cc if there is no residual feeding found or less than 30 cc.
G tube do need to be changed but that takes a physicians order . Hope this is answer you wanted.