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Bronchoscopic culture Article
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Bronchoscopic culture routine-sputum-culture biopsy
Definition
Bronchoscopic culture is a laboratory test to identify organisms that cause infection. It is performed on a specimen of lung tissue or secretions from the lung.
The specimen is obtained by bronchoscopy, in which a tube is passed into the bronchi through the mouth to view the airways of the lungs.
Alternative Names
Culture - bronchoscopic
Why the Bronchoscopic culture is Performed
A bronchoscopic culture is performed to detect and identify infection within the lung that cannot be accurately detected by a sputum culture. Evidence of infection such as abscesses, inflammation, or abnormal secretions may be observed during the procedure.
A bronchoscopy may also be performed for respiratory conditions other than infection, such as when cancer is suspected.
How the Bronchoscopic culture is Performed
You are positioned on a table or bed lying on your back. A local anesthetic is sprayed into your throat. When the area is numb, a bronchoscope (a thin, flexible fiberoptic tube) is passed through your nose or mouth and down your throat.
As the tube is inserted, a local anesthetic is put down the tube to anesthetize the deeper tissues. When the bronchoscope is in place, biopsy forceps (a small scissors-like apparatus) may be inserted down the tube to take a biopsy. A bronchial brush may be used to take a sample of cells from the surface, or a suction device may be used to take a sample. The bronchoscope is then removed.
The specimen is sent to the laboratory and placed in culture media. It is examined daily for the presence of microorganisms. If organisms are present, they are classified according to their type. Treatment of infection is based on the results of the culture.
How to Prepare for the Bronchoscopic culture
A 1-day stay in the hospital may be necessary, or the procedure may be performed on an outpatient (same-day) basis. You will not be able to eat or drink anything (even water) for 6-12 hours before the test. You must sign a consent form. Remove dentures or other mouth appliances before the test. You may be given a sedative.
How the Bronchoscopic culture Will Feel
The anesthetic will make your mouth and throat feel thick as it numbs the area. The anesthetic will numb your throat, larynx (voice box), trachea (windpipe), bronchial tubes, and lungs. It will also stop the gagging sensation, but the insertion of the tube may be unpleasant. You may have a sore throat after the procedure.
Risks
The risks of a bronchoscopic culture are the same as for a bronchoscopy procedure and include bleeding, infection, perforation (hole) of the bronchus or trachea, and pneumothorax. You must refrain from coughing and clearing your throat after the procedure, because it might dislodge a clot at the site of a biopsy.
Considerations
Not applicable.
Normal Results
No organisms are seen on the culture.
What Abnormal Results Mean
Abnormal culture results usually indicate a respiratory infection. The infection may be caused by bacterial, viral, parasitic, or fungal organisms. The results of the culture will help determine appropriate antimicrobial treatment.
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