I worked a few evenings a week as receptionist at the city arts center while I was in nursing school (it was a second job that I had before I started school -- I quit my full-time day job but kept that one).
Also, I worked part-time in an attorney's ofice while I was in graduate school (typing and filing). When I first moved to the community where my school was located, I had applied for a prn position at the university medical center, but it took them so long to process my application and get back to me, and I needed money so badly, that I signed up with a local temp secretarial agency and did secretarial work (school hadn't started yet, so I was free during the week). When the medical center finally got around to hiring me and letting me work prn and school started, the law office I had been working at as a temp asked if I would be willing to continue with them on a very part-time basis (they knew I was a full-time grad student and that was my main priority); I had gotten to know and like the other staff in the office and they were really in a bind (understaffed -- see, it's not just hospitals!

), and it was nice to do something
completely different from school, so I kept doing it.
Once you graduate and get your license, potential employers are going to be interested in you because of your skills and experience as a
nurse, not as a CNA, unit secretary, etc. You will not be at a disadvantage, as a graduate RN, because you worked in a different setting during school. Nursing employers looking at you as a new RN will not care what kind of work you were doing before (only whether you were, in general, a responsible employee of good character).
Nursing News