| Be aware of IPF when assessing a patient with the clinical features listed below and when considering requesting a chest radiograph or referring to a specialist: |
| Age >50 years |
| Persistent breathlessness on exertion |
| Persistent cough |
| Bilateral inspiratory crackles when listening to the chest |
| Clubbing of the fingers |
| Normal spirometry or impaired spirometry, usually with a restrictive pattern |
Information from [14].