Diagnostic Diagram of a<unk>  being performed * To view abnormalities of the airway * To obtain tissue specimens of the inside the lungs by biopsy, bronchoalveolar lavage, or endobronchial brushing. * To evaluate a person who has bleeding in the lungs, possible lung cancer, a chronic cough, or sarcoidosis Therapeutic * To remove secretions, blood, or foreign objects lodged in the airway * Laser resection of tumors or benign tracheal and bronchial strictures * Stent insertion to palliate extrinsic compression of the tracheobronchial lumen from either malignant or benign disease processes * For percutaneous tracheostomy * Tracheal intubation of patients with difficult airways is often performed using a flexible<unk>  Interventional<unk>  in chronic obstructive airway inflammatory diseases including asthma and COPD has greatly evolved and show promising results for the clinical management of patients.
Bronchoscopy
Bronchography
Lung biopsy
Thoracoscopy
Bronchial brushing
Electromagnetic navigation bronchoscopy
Bronchial challenge test
Bronchoalveolar lavage