We take a maths exam during our diplomas and degrees and we have to pass with 100% (in NSW at least) or we fail the course. To keep our jobs we have to go through orientation and be assessed on wound care, taking obs, giving injections, etc. As far as the interview process goes, we always have a panel of 2 or 3 people. Thank you for the suggestions though! I'm very nervous and quite shy so there's no chance of me coming across as demanding, haha. Thank you :)