I agree with studentnurseCT. Don't try to learn only what you need to learn to pass, because this information is actually very important and helpful once you start nursing classes. It is very hard to understand certain nursing concepts if you don't understand how the body works. I learned that the hard way!
I am currently in the "Spring 2011" Lpn program at Lanier tech. My NLN score was 99, GPA 4.0. I don't think anyone in our class made below a 96 on the NLN, but it all depends on what everyone scores at the time you take the test. They pick the 20 highest scores of those who apply.