I am intending on applying for the summer 2013 session at UNLV. I have yet to take the HESI and my signing session is in February. However, I hope I can give you some insight to your question. If you have not done so, there is a calculation worksheet from which the admissions people use to deliberate your acceptance. http://nursing.unlv.edu/pdf/bsn%20pd...heet_08-09.pdf
On average, the score of acceptance comes out to be 86<above (which varies each semester; fall is usually higher; summer is usually lower than average). Admissions primarily focuses on how well you succeed in your science and math classes. As long as your gpa is above a 3.0 any other classes you've taken that don't pertain to the nursing major are not looked at. From what I've learned the emphasis on admission is based upon your HESI score and your science gpa (which comes from the worksheet I provided).
During the signing session, I was told that you just hand in your transcript, HESI score, and application packet; there is no actual in-depth interview.
This response is a bit late but I hope it helps! I wish you luck.