This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Nasal potential difference testing

Authoring team

Nasal potential difference testing is used in the diagnosis of cystic fibrosis. Individuals with cystic fibrosis have a raised potential difference across the nasal respiratory epithelium; 45 mV in comparison with 15 mV in normal individuals.


Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page