<p>Thanks so much for responding ladies!! Her stools have never been normal. That's why she's been through two bowel clinics and rectal biopsy to check for Hirschsprungs. This is the first time shes been tested for Cf. I was told I'm not a carrier, I guess they only checked the most common 32 mutations. I assumed that truely meant that I'm not a carrier. I refused to have her tested the first time b/c I thought it was impossible. When I was asked a second time, I thought why not it can't hurt, two borderline sweat test later and here we are.