I also want to attend the RN program at Mercy. I will go to the info session this July. I checked the brochure on the website, it said that you have to take the NLN PN comprehensive exam. Does anybody knows why it is said NLN PN instead of NLN RN because i'm going for the lpn to rn program. I have a feeling it is not the PAX-NLN, is it just a comprehensive exam the school offer itself? Any info about the exam please...is it hard...how to prepare for it...what to expect... Any information will be appreciate. Thank you...:)