If you can, buy the Saunders comprehensive review and then do the on site Kaplin review course (usually discounted through school). I know its expensive, but I did both and passed my first time with 79 questions(not trying to brag). Learn the Kaplin decision tree and use it to the best of your ability on the test; it will save you! I will confess that for a lot of my questions, I went to the last step in the decision tree, and just gutted it out. I thought that the ATI was a waste of time and didn't even use it on the NCLEX -and didn't miss it. Also know by heart the lab values given in Kaplin!! Good luck!!