http://talk.collegeconfidential.com/college-admissions/1970298-dual-enrollment-vs-ap-classes.html
There are a few threads discussing this topic on CC. I don’t think the issue is peculiar to nursing, except it probably would not be a good idea to skip the freshman bio course in a nursing program, even if you get AP or Dual enrollment credit.
My daughter got AP credit for bio, but her college gave her credit for a very basic bio class, and made all of the nursing students still take the standard challenging freshman bio class for nurses. That worked out well for her.