Finally, an interview on postpartum unit. Now what?!

I am a recent RN grad and have been very depressed about not finding a job since the largest percentage of my class are working already. Today I received a call to set up an interview for a night position on the postpartum unit. This is so amazing because even though I applied for the job, I never imagined they would actually consider a new grad!

Anyway, now how do I prepare for this interview? I have only had one interview and that was in March, and I don't think it went very well. What kind of questions should I anticipate and what should I ask the interviewers? During my previous interview, one of the panelist in particular seemed to focus on my knowledge of blood products and their use. I totally bombed it because although I had been exposed to learning how to administer blood, I was still in school and we had not finished the unit about blood products. Are these types of questions the norm?

This is a large regional medical center and I expect to be interviewed by a panel of about 3 people (would be wonderful if it's only the nurse manager of the unit!) Is it all right to bring a notebook with my questions written down? I did this with my other interview. I want this job so much!