<p>Actually, when I later (after the 1st sweat test) asked the Dr. what made him order the sweat test , he said it was the sinus infection in a kid with a history of asmtha or pneumonia.Ironically- my son has no history of either. The Dr. actually admitted he was confused regarding my sons history and wouldn't have ordered the test for only 1 sinus infection, so the whole thing is pretty crazy. We did have a 2nd sweat test at a cf center which resulted in a 14. They sent us home with a clean bill of health. We didn't even realize there was still a full gene sequence still out there until 8 weeks later when we got the bad news. We are seeing a CF specialist now, so hopefully we're in good hands now. Thanks for all the responses.