My son is 5 1/2 months old and was diagnosed through newborn screening. He has a borderline sweat test score, and I'm trying to understand exactly what that means. Our doctor said that a borderline score hopefully means later onset of symptoms and more mild symptoms - but I'm not exactly sure what that means. I've been reading other postings and know there are several other people whose children tested in the borderline range. He began treatment at 3 weeks and is currently doing albuterol and pulmicort twice a day. The pulmicort is recent and was because he began exhibiting "asthma-like" symptoms, he's breathing better but the Dr. wants to continue him on it for at least 3 more months. He doesn't have the enzyme deficiency so he's gaining weight. I'm just trying to understand what I should expect - especially since there seems to be so much conflicting information about borderline scores. Thanks for helping/listening.<img src="i/expressions/face-icon-small-confused.gif" border="0">