I would ask for a full panel(over 1500 mutations) genetic test too. There have been lots of false negative sweattests, even when they had done a few and even then you can still have CF. Sweattests don't say everything, I think a doctor in an accredited CF center should know that.
Good luck with everything! Don't hesitate to ask more questions
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Good luck with everything! Don't hesitate to ask more questions
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