I know when I got into nursing school in the Spring of 2008, retaking classes (esp. A&P and micro if you got anything less than an A) was OK. I know that at my school, starting next spring they will not accept applicants who have had to retake a course. I knew there were a few in Oregon that are currently operating under those rules, so perhaps this is a trend. There is some thought that if you do poorly in your sciences you will do poorly in nursing school. I wasn't ready for nursing school when I took A&P the first time, and it took me a few years to figure it out. I am doing well in nursing school, so if you base it on my first A&P grade, I may not have been accepted. Hopefully nursing schools will figure this out. Best of luck to you.