Bronchoscopy is a visual examination of the air passages leading to the lungs. It is use to evaluate symptoms such as coughing of blood, noisy or abnormal breathing, or to determine the cause of an abnormal chest X-ray. Bronchoscopy is often performed under local anesthesia with an anaesthetic agent applied into the nose and to the back of the throat. A light intravenous sedative may also be given to help the patient relax.
