2nddegree

Hello, I am currently working on my Sociology degree at a university in Toronto, Canada. I will be graduating in 2012 and would like to continue with school for nursing after I graduate. However, when looking at admission requirements for nursing schools in Ontario, there doesn't seem to be an option for recent graduates or people who already possess degrees in other fields. The only options seem to be high school students and mature students (neither of which I am). I am fine with applying to a 4 year program, and do not want to do an accelerated or 2nd entry program. Does anyone know if it is possible for me to apply to a 4-year degree program even though I already possess a degree? Please help!!