Dan,
Suggestions only:
1. drink a glass of water
2. listen to Motzart for 10 minutes just before the exam
3. goal: I will always select the correct answer in the multiple choice question.
4. If you don't know the answer: do a 3-2-1 & mentally ask your professor what the correct answer is. Count up 1-2-3 & select the first answer that comes to mind.
good luck 
