Thank you for all your replys. I thought I would just clear a few things up.
Firstly the test they used for the DNA was a gel based one, which I guess rules out the chance of F508c.
The sweat test was performed when she was systamatically unwell with many of the symptoms known to cause false positive and our ped was very suprised at the results and had initally only tested to rule it out, especially as both me and my husband have huge families, dozens of kids everywhere.
After the diagnosis we were quite prepared to accept this had happened and still our. And until we know for sure we are doing everything we need to do because we do accept it is something she may have.
What we don't understand is that all her symptoms have disappeared, typically as though she had a virus. And when I say symptoms I say the few that could resemble CF.
She has never had any lung problems period. She has had one cold which cleared up within a week.
She has never had any salty skin, nor salty sweat, if she ever gets sweaty you can lick the beads of sweat and they are in no way salty.
She has had liver problems which have now righted them selves and if you analise the LFT results they are not consistant with what would be expected of a person with CF , they are consistant with a CMV infection.
She only had slow weight gain initally when she had anemia, I should also add that she was six weeks premature and the hospital discharged her without iron and a follow up appointment. Now her iron levels are normal her weight gain if fantastic well over double for her age.
She never had meconimum illius at birth.
Her stools have always been normal apart from two weeks of diarrhea whilst in hosptial. They have never ever smelt bad, not even close. They are not bulky, greasy, loose or frequent.
It seems to us that the diaganosis has poped up out of the blue while she was being treated for this virus. Because CF is such a serious thing the hospital has focused on this so much at the exclusion of all else (very bad practice in our book).
I think most people would doubt the diaganosis when it was made on symptoms that have now disappeared.
We have wondered if we are the luckiest people alive that she has had a virus that has had similar symptoms to Cf prompting the testing and infact we have just found it months or years earlier than we would of done whereby some lung damage etc may of occured. But you can't help also thinking how can you have something so life shortening without any symptoms....only time will tell I guess.
Could I also ask Okok, you said about the percent of CFTR protein, is there a test which shows how much is functioning?