Patti:
When I was first tested for CF mutations, in late 1990's there were only 250 known mutations. I only tested positive for Delta F508. Since that time, many new mutations have been discovered. There are almost 2000 known mutations. Depending upon when you were tested, a new test, a FULL CF SEQUENCING, should be done.
All testing MUST be done at an APPROVED CF CENTER by a CF SPECIALIST, not your local Doctor.
Bill