It's also not prudent, if this is an exam that means a lot to you, to begin studying 24 hours in advance. None of us (even Rid) can cast our magic wands and give you a perfect resource that has all the information you need for the exam. The questions are taken from several books, and are fairly broad ranging, but it's all within reason, and common sense. Venture out to your local library, and take a look at other EMT textbooks, or test prep books (every library has them).
Good Luck!