Occupational lung diseases can lead to diffuse interstitial pulmonary fibrosis . The incidence is 1 out of 10,000 people. Crackles may be heard by stethoscope examination of the chest. A change of occupations is indicated in some cases. In severe cases, steroids may be given for 4 to 6 weeks.
Most symptoms resolve after exposure to the allergen is limited.
Bronchoscopy is a surgical technique for viewing the interior of the airways. Using sophisticated flexible fiber optic instruments, surgeons are able to explore the trachea, main stem bronchi, and some of the small bronchi. In children, this procedure may be used to remove foreign objects that have been inhaled.