My son, 16, just saw the GI doctor for the first time. His blood tests results came back from the serology 7 series and puts him in the 84% for Crohns. He will get an upper GI on Tuesday, a colonscopy and endoscopy is being scheduled as well. My question is, what exactly will all these test tell us? What kinds of things can they find from these tests? When the results come back, what questions should I ask?