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bronchoscope |
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bronchoscope (brŏng`kəskōp'), long, tubular instrument with a light at the tip that is inserted through the windpipe and bronchial tubes to examine these structures. By passing other instruments through it, foreign bodies and obstructions can be removed and tissue or secretions may be removed for microscopic observation. Gustav Killian, German laryngologist, in Freiburg, Germany, was the first to experiment with such a device in 1895. Chevalier Jackson adapted the bronchoscope to serve as an aid to the breathing of a patient during surgery in 1903, and he improved the system of illumination in the instrument; he is regarded as the father of bronchoscopy. |
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A false-positive TB culture is defined as a positive TB culture that is not the result of culture-positive disease in a patient but instead may be due to 1) laboratory cross-contamination during specimen processing; 2) errors in collection or labeling, either on the patient ward or in the laboratory; or 3) contamination of clinical devices, for example, contamination of a bronchoscope during specimen collection. In these cases, a controlled tracheotomy over a laryngeal mask airway or over a rigid ventilating bronchoscope can be performed. BAL samples only distinct segments of the lung distal to the bronchus into which the bronchoscope is wedged (Kelly et al. |
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bronchoscope
