If you don't like your BC nurse @Jan61. Tell her you don't need her services thank you very much. You don't have to have one. Just means there's no one else to help you with the leg work if you need it or explain things in normal people terms if you get bamboozled by medico language.
Generally speaking the BC nurse is there for support and to be your advocate. Say you chose not to have surgery but the surgeon really says its' the best thing and tries to talk you into it. She will (should) go in to bat for your wishes.
They can attend the MDT meetings so they are up to speed with what your treatment plan is and what has been discussed and can give you results if they have spoken with the surgeon and been given the ok to.
Hmmm, I would really have a double check on the node surgery with your B/S don't you have two nodes out of 4 positive or did I misread that? They tend to avoid operating if it's not entirely necessary.
All the best with your decisions.
xoxoxo