I have a newborn (2 week) old son. On his newborn screening, it came back that his IRT levels were high and that he is a carrier of the delta f508. His pediatrician recommended a sweat test, which came back inconclusive because he didn't sweat enough and we have to try again next month. He does not show any of the symptoms of a CF child. Great bowels, non salty skin, and pretty much in excellent health. I am still terrified though. my question is this- how were your children diagnosed, and did they have any symptoms? The technician giving the sweat test said the fact he didn't sweat was a good sign, but I still can't help worrying all the time now and I don't know if she said that just to make me feel better. Thanks, Cindy