Bronchiectasis other diagnostic studies
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Overview
Other diagnostic tools that can be used are lung function tests, electron microscope examination, and bronchoscopy.
Bronchiectasis Other Diagnostic Studies
Lung Function Tests
- Early in the disease, patients will present with lung function tests that represent an obstructive disorder (FEV1/FVC ratio <80%). This indicates the inflammation and involvement of the small airways.
- As the disease progresses, the lung function tests represent a restrictive disorder (FEV1/FVC ratio > or = 80%). This indicates the destruction of the lung tissue and small airways.
- The forced expiratory volume in one second (FEV1), forced vital capacity (FVC), and peak expiratory flow (PEF) should be measured annually. If the patient has an immune deficiency or primary ciliary dyskinesia, then the above should be measured four times a year.
Electron Microscope Examination
- Examination can be done on sperm and respiratory epithelium for evidence of ciliary structural abnormalities or dyskinesia.
Bronchoscopy
- Bronchoscopy with bronchoalveolar lavage may be used to obtain specimens for staining and culture.