Telling the family

Picking up the wife tonight in Denver. She has been gone for a few weeks with a family health issue in California. We are heading to the Michael Buble concert in Denver, where we have front row seats! Conversation turns to the testing before we ever really get out of DIA. I tell her what has transpired, and what I think is going on. Then the convo turns to the kids. Should we tell them? I say no - not enough info at this point. Don't worry them. I am considered hard headed.