Access the situation and do not panic if it is bad because this will only add to their shock. Comfort the person and assure that that this too shall pass and everything happens for a reason, simple reassuring sayings like this will calm them down until you can fully think about the cause of the shock. NEVER say that you predicted it or understand exactly ow it feels even if you do, it does not read well when the person is in shock. I hope this helps.