We recently had a Dr order a PICC line for TPN. The Pt. already had a PICC, but since it had been in for over a week, the Dr. wanted a new line. I can't find any information out there that states a new PICC is needed for TPN.
I can understand why once TPN is started we should use a dedicated line for the TPN, but, do we really need a new PICC?