Kaplan Nursing entrance exam

Hey guys! So I will be RE-taking the Kaplan Exam this Thursday and I am really nervous! I took it once before and totally bombed the science part. Not knowing then what i know now however, is there are certain topics that are going to be covered (A&P II) such as renal system, cardiovascular system, neurology, blood, homeostasis, etc. Any advice? I have studied my old power points my professor gave us this past spring semester. Has anyone had to take it the second time? If so, was it harder or were the questions generally the same?? just curious, because if i don't pass it this second time i cant start nursing school in the fall