It will have the same affect as a DUI for all practical purposes. You need to see an attorney who specializes in professional licenses in CA to determine the best way of dealing with this problem.
I agree with Kaman - one of the things they will look at as will is the DMV record, did you win the DMV case or is there a DMV DUI on your record as well.
The nursing issue is important and better to start addressing it now than later when you go for the certification and job. It might help a little to get it expunged early as well - talk to an attorney in person regarding this issues.
Good luck with the situation.
Matthew Williamson
www.MontereyDUI.com
That short answer is, no, not likely. But, each case is reviewed differently by the Board. I agree with the previous answers, you need to hire an attorney experienced in Nursing Board representation.