imperfections

I'm currently in my Sophomore year working towards a BA in 'Cross-Cultural Relations' and 'Geography, Globalization, and Regional Studies'. As I would eventually like to work overseas in politics and public health I would really like to complete this degree. However, I cannot seem to find information on completing a nursing degree that is shortened by the pre-reqs which I have already completed. Since I was originally headed towards a pre-med major I have completed quite a few (Calcs I and II, Physics I, Biology I, Chems I and II and Orgo Chem I). Are there nursing programs available for folks that allready have their BA in an unrelated area of study? At the moment I seem to be being pointed towards dropping my studies here at my AA and transfering to a nursing program now which is not really something that seems to fit my plans. On a somewhat related note. Is it possible to pursue such a nursing program while working towards a Masters of Public Health? Career-wise, I guess what I am really headed towards is working with an organization like Medecins Sans Frontieres in the field as a nurse, working both as a hands on nurse and/or in a public health logistical/managerial position. If possible I would also be working towards a PhD. Eventually, after a good deal of 'in the field' experience I would like to work up towards larger scale political/public health positions. This is, of course, just a plan and is continually changing and evolving. So, I suppose what I am asking is do y'all know of any one or two year RN programs designed for BA graduates? Or maybe any evening/weekend courses which I could do while pursuing my MPH? Are there any accelerated courses around that are geared for folks that already have a good load of sciences/maths? Thanks so much for your time, ~faultlessimperfection