Bronchial asthma
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Patients who clinicians believe need to be tested for FeNO; 2. Subjects must sign an informed consent indicating that they understand the purpose of the study and the necessary procedures for the study, and volunteer to participate in the study.
Exclusion criteria
Exclusion criteria: (1) People with unconsciousness or cognitive impairment; (2) severe oral deformity or facial paralysis; (3) Patients with severe oral infections; (4) Patients with mechanical ventilation; (5) Patients with pneumothorax or massive pleural effusion; (6) Other patients who can not cooperate with the examination correctly; (7) For safety reasons or patients'interests, clinicians believe that patients should not participate in any of the circumstances of this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Fractional Exhaled Nitric Oxide; | — |
Countries
China
Contacts
Department of Respiratory Medicine, Guangzhou Women and Children Medical Center