Posted 4/27/2006 5:11 PM (GMT -7)
All I can say is that there is a such thing as a falso negative, but not a false positive. If I were you, I would also get a DNA test done as well. A DNA test is 100% accurate, while sometimes sweat tests are not. Are you getting these testa done at an accredited CF centre? CF centres are more accurate then a regular doctor. There are know cases of CF where sweat tests came back normal.