I got all A's in nursing school!

. Sure it can be done. Who says you can't keep your pre-req grades?
The trick is (and I know it has been said before) learning how to answer critical thinking questions. Sometimes I'd read a question, and think, "Nice try-I see what you're getting at". They are filling the question with all kinds of info, but they really want you to be able to see through all the blah diddy blah blah and get their point. It's almost like they are talking to you in code.
I mentioned this on another thread, but I'd highlight my book (debinded of course) when the instructor said something that pertained to it. If the teacher says something twice, then I put a star next to it in my book and power points. Teachers don't repeat themselves for the fun of it. If you have trouble with critical thinking questions, then get an NCLEX book stat! I recommend Saunders, and review the rationals. In fact, I'd see some questions on the test that were awefully similiar to those in the NCLEX book, and I saw the same thing on HESI. Good Luck-It can be done!