I'm currently in the OKCU nursing program and they will accept anyone with at least a 3.0, they require some classes that other universities don't require though. But they will let you lack 6...
We had clinicals 2 days/week so I bought two sets of scrubs, but even one set will do if you're willing to wash it immediately after clinicals. MyNursingUniforms.com has the best deals on Dickies...