I'm new to this forum, but I've enjoyed reading the posts. Our home health agency has been doing sterile PICC dressing changes using tegaderm and a biopatch every 7 days. However, the recent National Home Health conference in Los Angeles said "best practice" is to use a biopatch only for the first 7 days after insertion. Long term PICC care should involve sterile chloraprep/tegaderm dressing changes with no biopatch. Not using a biopatch allows for better insertion site visualization. So, we are considering a change in our policy to reflect "best practice", but I'm struggling to find real research to back it up. Any help?