At least 1 of the following: |
|
PLUS at least 1 of the following: |
|
CF: cystic fibrosis; CFTR: cystic fibrosis transmembrane conductance regulator gene; NPD: nasal potential difference.
* Using mutation classifications identified in the CFTR2 project.
¶ NPD testing measures abnormalities in ion transport across the nasal epithelium.