I wonder if they need the sweat test number as just an indicator of how well her CFTR is working. The higher the sweat test number the less the CFTR is working and the lower the sweat test number the better the CFTR is working. But I have also heard (on this board) that the sweat test score isn't indicative of serverity over the long run of the disease so maybe they are just required to get a sweat test for their CF data tracking. Will be interested to hear what they say.