Honestly, I would suggest getting a little experience before you start making plans for graduate school. You mention wanting to be a CRNA or NP but then you talk about getting involved in the business side of health care. In your last post you talk about becoming a nurse researcher; while you can work in clinical research without any education past the pre-licensure, if you want to conduct nursing research you need a PhD. You also need to have an area in which you would like to focus and find a school that has professors who have worked in that area so they can mentor you.
From your posts, it seems pretty clear that you will want at least an MSN. Depending on how far along you are in your AD program, here's how I see your options:
1) Quit the AD program and get into an accelerated BSN for second degree students or a direct entry generalist MSN (also for second degree students). The advantage of this is you will get the degree you want, you will have time to learn more about areas that may interest you, and you will be better-prepared for the next step. The disadvantages are that these are very competitive programs and you may get stuck on a wait list; also, many of these programs are expensive. (You could also just do a generic BSN program but again, these programs are competitive and you might have a long wait. It might be better in the long run to finish the ADN).
2) Finish the ADN and get into an ADN-BSN completion program upon graduation and passage of the NCLEX. You don't need experience as a nurse to get into these programs but you can work as a nurse while you're working on your degree. The advantages are that most ADN and diploma nurses find the BSN completion curricula to be less difficult and stressful than their original programs. Another advantage is that SOME facilities offer tuition reimbursement programs and will help you pay your tuition. Yet another advantage is that many of these programs, even those in brick and mortar institutions, are online. The disadvantage is that this adds at least another year or two to your schooling. However, since you don't know yet what you really want to do, this might be to your advantage.
3) Finish the ADN, work a while, then apply to an ADN-MSN bridge. The advantage is that you don't have the hassle of going to yet another school to get the BSN and you might save some time. Also, you would gain work experience and learn what appeals to you. Right now you're looking at CRNA vs. NP vs. administration vs. research. Before you commit, say, to CRNA, make sure your heart isn't in informatics or nurse midwifery. Working will give you an idea of what you like, what specialties you enjoy. The biggest disadvantage of ADN-MSN is that you will still need to complete the baccalaureate level courses (usually takes a year) and you may or may not receive a BSN when you're done with those. If you have to drop out of your program, you will be an ADN with a degree in something else, not a BSN (unless the program confers a BSN). Cost of these programs can vary but you may have more opportunities for financial aid at the graduate level.
4) If you think you want to do research, you could look at a BSN-PhD bridge program, bypassing the MSN. Again, you will still do coursework at the master's level and, unless the school confers a master's degree, you will not have that particular credentialing. I also believe some schools
, while they offer a BSN-PhD track, will still give preference so MSN-prepared nurses over well-qualified BSNs. I don't believe that there are any programs that offer ADN through PhD; I'm not sure such a program would be a good idea. With every different program, you are exposed to different program philosophies, different instructor ideas, different ways of thinking. Many career advisors suggest that it's good to be exposed to a variety of ideas so that you don't get entrenched in the thinking of just one institution.
There's much to consider here. I hope some of these thoughts will help.