Hello,
RPN are only recognized in some provinces as different branch of nursing. Alberta comes to mind. Also, their scope of pratice and training are different than a RN.
NO in the CF have to provide a wide range of care from public health to emergency nursing. It is my understanding that one needs a BScN to go direct entry or a Nursing Diploma if enrolled under the Registered Nurse Education Plan. So, I do not think that you will have much luck as a PRN (i.e. what if they needed a nurse for critical care/emergency duties overseas).
The solution, the way I see it, is look into Regular Officer Training Program and going back to school. With your PRN training this will not be too long. Second, you will have your education paid for.
When I was a student doing my clinical at the Alberta Hospital (ironically on Sept. 11.....I was the last to know about the towers because I thoought my patient was delusional when she said that NY was under attack) a couple of the RPN were working towards their BScN to open up more job opportunities.
I hope this helps some. Good luck.
David