I am not sure what you mean by clinical evaluation. This must be newer nursing school
lingo (I grad over 20 yrs ago!) They should have a little old lady smiley here!
Anyway, do you mean is it fair to keep you from taking your final exam? Well, I would think that as long as you did turn in the paperwork, albeit late, and already have been punished for that by means of 40 pt deduction. Otherwise, I see no reason why you shouldnot be permitted to take your final.
You would have to carefully review your grading policies. If it clearly states that yu must have x% in order to sit for the exam, dand you have missed that by virtue of the late point deductions, then you have no leg to stand on. IF there is no hard and fast rule about this, I would argue the point with the dean.
I am not sure if that answered your question at all, since I still am not sure of the question.
Remember to show remorse, be humble, show a serious commitment to the program, cry if you have to!