Well, I don't know how to answer your questions because:
1) I don't have a copy of the official calender for your year.
2) Dates are subject to change.
Judging from the Google Calender, it looks like you guys are going to have your EOY and Shelf exam on the 090511, just a weekend away from your Renal final. Then you have a little less than a week until you take your CSA (two interviews with standarized pt). You could be scheduled for your CSA anytime during the CSA testing period. The school will send you a schedule when the time nears. Unofficially, it looks as if the last possible day of school is going to be 090521 (assuming you pass everything and don't need to do any remediation), for you guys. I can't be sure, though, since I'm looking at a secondary source.
However, things can and do change. We were supposed to have our EOY and Shelf exams on 080516 and have our CSA's between 080512 to 080515, but instead, we had our EOY and Shelf exams on 080519 and our CSA's between 080520 to 080523 (I had mine on the 21st).