To really do well on tests (i.e. get A's), you've got to obsess a little. The guy who said repetition is key is correct. You need to go through the material as many times as possible, in as many ways as possible.
1) Try to preread lightly, you're not reading for memorization or really to retain anything in this phase. Although I will say I never really got into the "prereading" thing, and I did very well.
2) Go to class. Until you really know that class is not a good use of your time, go to every class. At the very least, you gain knowledge of how fast the professor is going through the material, what depth of understanding they expect, what things they say, "oh don't worry about this slide", or add to what's in the slides based on what they say in lecture. It's hard to argue that listening to the guy who's going to be writing the test questions on the material talk about the material isn't a worthwhile use of your time, though occasionally it does happen. So go to class, and take notes on the slides.
3) Go through your slides afterwards and highlight them according to your highlighting scheme (use multiple colors).
4) Go through your lecture notes and highlight them according to your highlighting scheme.
5) Transfer notes or anything extra (not in the lecture notes) from the slides & what was said in lecture to the lecture notes. Henceforth the lecture notes should have everything material-wise that you need for the test.
6) Go to town on the lecture notes. Make review sheets based on it. Review sheets are huge. In fact, in my opinion you should always be making review sheets. Draw out biochem reactions. Diagram endocrine pathways. Sketch anatomy structures. Make lists of micro bugs, or pharm drugs. Write down anything you don't know, and review that. The great thing about review sheets is that (1) you've had to read through the notes to make it in the first place, (2) you put key points in your own words and have a record of it, (3) you have something to review again later (you should use these as something easy to flip through the morning before the test). Make sure you get in a full comprehensive notes review in the week or so before the test.
7) The morning of, I recommend getting in a few hours of light review before the test. Just to get your head primed, thinking about the material, remind yourself of things, etc. Review sheets are great for this.
8) Also, if old tests are available, go through those. Not so much to learn things (or at least I didn't use them to really learn things), but to get down how they're going to be asking questions (depth, style, etc.). Do as many practice questions as you can.
9) Keep checklists of your progress. This is big. You keep careful track of what you've done and what you have yet to do, so that you're appropriately confident about how much you've done, but also knowledgeable about what you haven't hit yet.
10) General: set goals to how well you want to do and accept nothing less. Don't rely on curves. Pretend there isn't going to be a curve, e.g. that you need 90% on every test. That way, the curves tend to be on your side (even if you fall below the mark you're shooting for on an exam or two). Try to do well early in the course. It takes pressure off a little for the final.