I just interviewed and was hired for ICU and telemetry. Actually, where I live there is a nursing shortage...maybe the same holds for you. I went to HR with a resume in my hand and immediately a nursing recruiter jumped up, handed me an application and asked if I had time?
I filled it out and then she said, "Do you have time to meet the nurse manager for the units?"
Two managers met with me, toured me briefly, sat down and asked how "comfortable" I was with this and that and then basically offered me a job. I have not worked in a hospital setting for 16 years!
I offer this to give you a mindset. It is this: they want a good hire more than you want to be that hire! As long as you look neat and clean and convey a pleasant, cordial personality, you can come with gaps in your knowledge but they can fix that! If they ask and you are untrained in that area, admit you do not know but you want to learn.