Angioplasty position

Hi all,
I'm a new grad that has already been through two jobs that didn't last for one reason or another after graduating and obtaining my license (inpatient OR and nursing home).
I felt like I had a pretty good picture of what to expect on a hospital floor from clinicals in nursing school and wanted something different.
Anyways I have an interview on Monday for an R.N. position working in Angioplasty at one of the larger hospitals in the Milwaukee area. I was wondering if anyone out there had any experience with this type of work or just knew a thing or two and could let me know the general roles and responsibilities of the R.N. during these cases. Thanks, any advise is welcomed and appreciated.
Matt