Comparison of induced versus expectorated sputum for diagnosis of pulmonary tuberculosis by acid-fast smear

摘要

Objective: To evaluate the sensitivity of induced versus expectorated sputum for the diagno- sis of pulmonary tuberculosis by acid-fast smear. Methods: We performed a retrospective review of data on patients with cultures from respi- Ratory secretions that were positive for Mycobacterium tuberculosis. We analyze data on The 114 patients with positive cultures during a 4-ayar period in an urban tertiary care aca- Demic medical center. Conclusions: We found sputum induction to be costly, and induced sputum offered no Advantage over routine expectorated sputum for the diagnosis of pulmonary tuberculosis.