Exhaled Nitric Oxide Measurement Is Useful for the Exclusion of Nonasthmatic Eosinophilic Bronchitis in Patients With Chronic Cough

We concluded that exhaled NO measurement may be useful as part of the initial evaluation for chronic cough, especially for the exclusion of NAEB. A low level of exhaled NO suggested little likelihood of NAEB for the nonasthmatic patients with chronic cough.