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Equine Health Resource

Bronchoalveolar Lavage, BAL



A bronchoalveolar lavage is helpful in diagnosing and treating cases of pneumonia and recurrent airway obstruction (RAO).

In this procedure, a special catheter is passed through the nostril, into the trachea and down into a deeper branch (bronchus). Fluid is flushed in and pulled back out into the syringe. Samples are assessed for cytology and culture. The sample may also be obtained through an endoscope.

Author: Doug Thal DVM Dipl. ABVP


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