Cystic fibrosis other diagnostic studies
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Shaghayegh Habibi, M.D.[2]
Overview
Other diagnostic studies in patients with cystic fibrosis include sweat chloride test and nasal potential differences which used to detect changes in CFTR function.
Other Diagnostic Studies
Other diagnostic studies in patients with cystic fibrosis include:[1]
- Sweat chloride test: This test is an indicator of CFTR function and measures the chloride content of the sweat in the patients with cystic fibrosis.
- A sweat chloride value of more than 60 mmol/L is diagnostic for cystic fibrosis.
- Nasal Potential Difference (NPD): In patients with cystic fibrosis NPD is performed by running different solutions through the nose. Voltage measurements from these solutions are used to detect changes in CFTR function.