Tuberculosis (TB) suspect is any one who has signs or symptoms suggestive of TB (eg >2 weeks productive cough).
Definite TB is considered in patients with culture or molecular line probe assay positive for Mycobacterium tuberculosis, or in patients with at least 1 sputum smear positive for acid-fast bacilli.
TB cases are also classified based on the disease anatomical site, bacteriological results (including drug resistance), previous treatment history and patient's HIV status.
Pulmonary TB is a case of TB that involves the lung parenchyma.
Miliary TB is considered as PTB since lung lesions are also seen.
TB in the pleural effusion, mediastinal and/or hilar lymph nodes with no evidence of abnormalities in the chest x-ray are considered extrapulmonary TB.
Patients presenting with both PTB and extrapulmonary TB are classified as a case of PTB.
Use of triple therapy consisting of a long acting muscarinic antagonist (LAMA), long acting β agonist (LABA) and inhaled corticosteroid (ICS) leads to a reduced rate of moderate or severe exacerbations of chronic obstructive pulmonary disease (COPD) and better lung function and health-related quality of life compared with dual therapy (ICS and LABA or LAMA and LABA) or LAMA monotherapy, according to the results of a meta-analysis.