This procedure is done in a hospital. You will get medicine to relieve pain and help you sleep. Some people find that they don't remember having the procedure because of the medicine.
The doctor gently moves a small tube, or bronchoscope, through the nose or mouth and down to the lungs. The scope is also a small video camera. It lets the doctor see the lungs. This helps the doctor place endobronchial valves where they're needed in the lungs.
The procedure usually takes 30 to 60 minutes.