Hey, I'm not saying you are doing this, but it's something to consider.
I used to interview alot of new grads that were forwarded to me by recruiters that found them online (not nursing, but for finance). I would get alot of new grads that had very high GPA's, in other words, "great on paper".
When they would get to the office, I used to sit there and wonder what they were teaching them in college these days, because several times they thought the interview was merely a formality toward them getting the job, but what they didn't know, is I may be interviewing 20 for 3 positions.
In other words, it SHOWED in their body language during the interview. I paid ALOT of attention to the dress....I didn't care if the outfit was expensive, it was the effort I was looking for in preparation for the interview.
As a NG if you go to two interviews, and don't get the job, especially since you are interviewing for nursing positions, see if you can find someone that is a higher level manager, even in another field, or one of your instructors to do a mock interview....you might be suprised to find the errors you are making.
If your interviews are solid...keep in mind you never know who else the recruiter is interviewing. I am sure I gave more than one individual the impression that I would be calling them, only to interview someone else later that same day or the next day that was equally qualified, but willing to work for less $$$, or someone that was very experienced that I couldn't pass up.
Anything can change on a dime. I wish you luck, it sounds like you hav done well in school, and I'm sure you can find a job very soon.