Bronchoscopy
Bronchoscopy is a diagnostic procedure in which a tube with a tiny camera on the end is inserted through the nose or mouth into the lungs. The procedure provides a view of the airways of the lung and allows doctors to collect lung secretions or tissue specimens (biopsy).

Pulmonary function tests
Pulmonary function tests

Pulmonary ventilation/perfusion scan
Pulmonary ventilation/perfusion scan

Chest X-ray
An of the chest, lungs, heart, large arteries, ribs, and the diaphragm.

Peak expiratory flow rate
Peak expiratory flow rate