Health professions graduate schools vary in their attitudes toward advanced placement. We will present some general guidelines here, but suggest that you contact individual schools if you have questions concerning the policy at specific institutions.
If you have received advanced placement in a science (Biology, Chemistry, Physics), most medical schools will accept this as long as you take an equivalent number of courses (and laboratories) at a more advanced level within that discipline. If you have received the equivalent of one year's worth of advanced placement in Mathematics, most schools will accept this, and there is generally no need for you to take additional upper-level math courses. Regardless of whether or not you receive advanced placement in English, we strongly recommend that you take two English courses while in college.
Please keep in mind that premedical/predental requirements may or may not coincide with the requirements of your major. For example, if you are a BS Biology major and have received advanced placement for two semesters of calculus, the Biology Department will still require you to take two math courses — or related approved electives. If you arrive at Boston College with advanced placement in math, the Mathematics Department may "recommend" you begin by taking a higher level math course. Please keep in mind that this is only a recommendation. If you think that your background is insufficient, you should feel free to "drop down" to a lower-level course (e.g., MATH 1100/Calculus I) before the drop/add period ends.
There are clearly pluses and minuses to taking advantage of advanced placement opportunities. On the plus side, it allows you to get more quickly involved in intellectually challenging upper level courses. On the negative side, college is often a significant period of adjustment. This, combined with the highly competitive nature of medical school admissions, may argue for extra-careful course planning