How did you interview go? You sound like a shoe in for this type of position. I am also sort of frustrated that the only place for Infection preventionists to post in Allnurses is under Infectious Disease.....
Every day in my hospital, I am told that I should know this and that drug, and am asked for recommendations on drug therapy for patients. I remind people that they need to call the ID team. I'm here for surveillance, to identify trends, educate staff and ensure compliance with our policies (and some other things). I do many things, but I do not treat or recommend drug therapy for patients. Arrrugh. My favorite moment of mis-understanding of this was when I was told last week- oh you need to know the treatments for neutropenic fever for your certification exam. I asked that person when was the last time she looked at content for the CIC exam.