When I worked in a LTC facility, we had a nurse come in at night to manage an IV therapy patient. She was working for a company that provided this service.
An infusion therapy specialist visited one of my home care clients. The client had a PICC line. The home care nurses were not to chart on this line or have anything to do with the line, according to our employer. The client was receiving a non-FDA approved medication on his own without the agency taking any responsibility for the care. When the nurse arrived, I showed him where the supplies were, gave him an update, and left the room until he was done. Always thought that there was a lot of risk involved there. Wouldn't do anything similar again, now that I'm older and wiser. That nurse was wearing a uniform shirt that had the name of his company on it.
I don't think I would do infusion therapy on my own due to liability issues.