It’s legal - I’ve stayed at hotels even in London where you can get a nurse administered IV of some bullshit in your room. I passed on that, and went with the time honoured method of a greasy fry and a pint.
The illegal part is if the nurse is stealing the IV and “works” from their workplace (a hospital).
The illegal part is if the nurse is stealing the IV and “works” from their workplace (a hospital).