Don't stop here!!! As the others have said, this number does not rule out CF. The sweat test is good for diagnosing, not good for ruling out CF. Definitely request, push, scream, whatever to get genetic work done. If your daughter has symptoms enough to test, you need to make sure you actually can rule it out. There are some other reasons for an elevated sweat score, if you rule out CF you'll have to check into those. Hang in there -- I know its frustrating! I don't know why doctor's don't know that the sweat test has false negatives. Sounds like an article in the making for a pediatrics journal. Anyone game?