features
Last reviewed 07/2023
Clinical features include:
- dyspnoea
- cyanosis
- clubbing
- there may be slightly reduced chest expansion
- there may be bronchial breathing
- on auscultation there may be late-inspiratory and paninspiratory crackles heard over the affected lung lobules
- there may be clinical features of an associated connective tissue disease
Lung function tests:
- ratio of FEV1 to vital capacity is not reduced (contrasts with reduced FEV1/FVC that occurs in airways obstruction)
- lung compliance is reduced in diffuse pulmonary fibrosis