PREOPERATIVE DIAGNOSIS: , Atelectasis.,POSTOPERATIVE DIAGNOSIS: , Mucous plugging.,PROCEDURE PERFORMED: , Bronchoscopy.,ANESTHESIA: , Lidocaine topical 2%, Versed 3 mg IV.  Conscious sedation.,PROCEDURE: , At bedside, a bronchoscope was passed down the tracheostomy tube under monitoring.  The main carina was visualized.  The trachea was free of any secretions.  The right upper lobe, middle and lower lobes appeared to have some mucoid secretions but minimal and with some erythema.  Left mainstem appeared patent.  Left lower lobe had slight plugging in the left base, but much better that previous bronchoscopy findings.  The area was lavaged with some saline and cleared.  The patient tolerated the procedure well.cardiovascular / pulmonary, 