Hello this is Dr. Salama MD,
While it is possible that your daughter has CF, it is unlikely considering her normal development till this point.
It’s not unusual for babies to sweat and taste salty.
Because their temperature-regulating systems aren’t fully developed, babies sweat easily.
And because sweat contains a lot of salt, it can taste salty.
If you or your doctor are still concerned about the possibility of CF, then a referral to genetics would be warranted.
However, at this time I do not think it's necessary.
Let me know if you have any other questions.
If not, please don't forget to leave a positive rating (bonus appreciated) as that's the only way I get credit for answering your question.