I am in the exact same boat that you are. I am second year ADN and after our first test the class average was just shy of NOT passing (Med/Surg). So we are all freaked out. I remember hearing stores from second year students last year about how many people failed tests. It seems like everyone.
Just now I got home from class after taking a Mental Health/Community Nursing test. We went over the answers after the test, but didn't get to see our actual tests. And from the sounds of the moans and arguing going on, at least 90% of us didn't pass (me included). Apparently the instructors from neighboring campuses talk about the test results and our instructor is going to try to argue a few questions for us because they were not accurate. But still.....even with a FEW points back, a majority failed. We only have 4 tests in that class so this was 25% of our grade.

I know we aren't stupid, cause we all did fine last year. So whats the problem. I'm angry that I "wasted" so much time studying and failed the test. I totally understand what you are going through but I don't have an answer for why. VERY frustrating. Good luck to you in the future. Keep your chin up!!