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Sweat chloride ??
Jan 22, 2008
My daughter has had various symptoms....growth issues, ravenous appetite without gaining weight, a nose that is always running for over a year....sometimes not so much.....sometimes gunky and worse to name a few. She's had an endoscopy to rule out GI issues and other various tests. She had the infant blood screening for CF and that was negative.

Long story short...she had a sweat chloride test done yesterday.........her first number was 58..........so they did the test again on a different arm......that number was 70...........they did a third on her leg....that was 67.

We had it done in a hospital and now our Dr. wants to have it done again down at the specialty area. Everything I am reading says sweat chloride tests can have false negatives..........I am not finding anything about false positives.

What are ANYONE'S thoughts. I have to wait until Friday and I can't help but think she more likely than not has CF????????? Besides the other "rare" diseases.........would there be false positives????????? Also......what's the difference between various sweat chloride testings....ie. My daughter's was not a guaze and patch.......it was a drop of purified water put into 2 devices strapped to her arm with electrode like things.......the results came up on the computer???????????





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