I am wondering, because my CF doc decided to give my 8-month old a sweat test. It will be taking place on Tuesday, but I am wanting to know how accurate they are. I did taste my son's sweat before and it does not seem salty. Anyway, Alex has had a lot of colds and right now is on Pulmicort, Zithromax, and Albuterol. I sympathize with those who have to give babies nebulizer treatments. Anyway, his weight is also low (about the 10th percentile), but pretty much steady. I am not extremely worried since my husband was with about 85% accuracy not a carrier, but that my doc suggested a sweat test doesn't exactly fill me with confidence either. So, has anyone had a negative sweat test and then turned out having CF?