Scott, you can, and should, continue eating while on TPN or PPN. Of course for some people (the ICU example again) it's impossible to eat, at least for awhile, but that isn't you.
I suspect they won't want to place a port because those are mostly used for people who will need central vein access for an extended period of time, such as a cancer patient who is going through months of chemo. It's safer for you not to have a central line if possible. the PICC line has the advantage of being placed peripherally but the end (while the nutrients or whatever is actually delivered) is central. It's a long line. So it could be used for TPN, which must be delivered centrally. That might be an option for you. Any IV can become infected, but a PICC line is easy to remove if needed, a port can be removed but it's a bigger deal. A PICC line would also mean you wouldn't be getting stuck over and over as they are left in for long periods (unless infected or other problem).
Like Charris, you could be on your TPN or PPN overnight so you can get around during the day. They do that a lot with people who aren't hospitalized.
It looks like your protein level is going in the right direction. I don't know why your ALT is so high when the other liver function tests are ok.
