lower respiratory tract smear

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Related to sputum smear: Sputum culture

low·er res·pi·ra·to·ry tract smear

a group of cytologic specimens containing material from the lower respiratory tract and consisting mainly of sputum (spontaneous, induced) and material obtained at bronchoscopy (aspirated, lavaged, brushed); used for cytologic study of cancer and other diseases of the lungs.
References in periodicals archive ?
Policy message: All clinically suspected and X-ray positive but sputum smear negative cases should undergo sputum culture for Mycobacterium tuberculosis on Lowenstein-Jensen medium.
Assessment of physical conditions and current practice in laboratories carrying out sputum smear microscopy in Northwest Ethiopia.
A total of 1691 presumptive TB cases were enrolled in this study, but only 257 were having sputum smear positive pulmonary tuberculosis.
After 4 months of treatment, the boy's sputum smear microscopy and culture results remained negative, so the continuation phase of treatment was initiated.
Key words: Pulmonary tuberculosis, close contacts, sputum smear positive.
Before availability of the Xpert MTB/RIF test, the diagnosis of pulmonary TB in resource-limited settings was based primarily on detection of acid-fast bacilli by sputum smear microscopy.
Change in the bacteriological status of sputum from initial acid-fast bacilli (AFB) positive to AFB negative after intensive phase (IP) of treatment is known as sputum smear conversion.
With the exception of patient 1, who remained sputum-smear and culture positive, the other 4 patients' sputum smears converted to negative after 18-435 days, and cultures converted after 28-218 days.
PGC was associated with more extensive lung disease, lung cavitation, and positive sputum smear at the baseline.
These included: type of entry in SINAN (new TB case: no prior TB diagnosis; relapse--completed a previous TB treatment; return after default: individuals that defaulted from a previous TB treatment regimen and returned to continue treatment), site of TB at presentation (pulmonary, extra-pulmonary, pulmonary and extra-pulmonary), tuberculin skin test result, existence of chest X-ray suspicious for TB, result of initial sputum smear test, result of initial culture examination and second month smear, result of initial histopathological examination, and whether they received directly observed therapy (DOT).