Bronchoscopic culture is a test to identify organisms that cause infection in the lung.
Culture - bronchoscopic
You lie on a table or bed. A local numbing medicine (anesthetic) is sprayed into your throat. When the area is numb, a thin, flexible tube called a bronchoscope 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 numb 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 or suction device may be used to take a sample of cells from the surface. 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 bacteria or other infection-causing organisms. Treatment is based on the results of the culture.
You may need to stay in the hospital for one day, 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.
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.
A bronchoscopic culture is done to find infection in the lung that cannot be accurately detected by a sputum culture. The procedure may find evidence of infection, such as:
- Abnormal secretions
- Abscesses
- Inflammation
A bronchoscopy may also be performed for respiratory conditions other than infection, such as when cancer is suspected.
No organisms are seen on the culture.
Abnormal culture results usually indicate a respiratory infection. The infection may be caused by bacteria, viruses, parasites, or fungi. The results of the culture will help determine the best treatment.
The risks of a bronchoscopic culture are the same as for a bronchoscopy procedure, and include:
- Bleeding
- Hole (perforation) of the bronchus or trachea
- Infection
- Pneumothorax
You must avoid coughing and clearing your throat after the procedure, because it might dislodge a clot at the site of a biopsy.
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