Both of my children were started on cpt when they were diagnosed at a few weeks old. We use it for preventative measures and I think it is essential to keeping their lungs clear. I really don't understand when people say there is no lung involvement so they don't do cpt. If someone has cf, then there is lung involvement. Salt and water do not flow properly in the cells, whether or not is something that we are able to "see" mucus build-up first hand. My children go to preschool a few times a week. They, thankfully, don't get sick while most of their friends do often. On the rare occasion they get a cold, it just goes away without a problem. My daughter (age 4) has been on an oral antibiotic once in the past three years for a cold. I am not sure what classifies no lung involvement, but I would never say that about my children. They both do cpt twice daily, 30 minutes at a time. My daughter inhales pulmozyme, mucomyst and hypertonic saline. All of these I think help keep her lungs functioning well. I also have a 8 year old nephew who was diagnosed after my daughter. He has never done cpt (except once when had pneumonia) even though he also carries both delta 508 genes. It is just his doctors and parents preference.
Sharon, mom of Sophia, 4 and Jack, 2 both with cf