Just relax and be honest and open. If you dont know an answer always say you will access the resources available to you to obtain the answer. We ask several prioritizing questions about what would you do first in this situation. They are difficult I feel for the new nurse. If you dont know just tell them you would ask a team member. Dont be afraid to say you dont know but do show you realize there will be a team behind you. A brand new nurse with all the answers won't float!!