An able airman with a disqualify-. ing diagnosis, after FAA review, is given. a letter that permits any Aviation Medi-. cal Examiner to certify after reviewing. the pilot's current medical status, with-. out involving the bureaucracy.
Normal Lung Sounds. Normal breath sounds are classified as tracheal, bronchial, and vesicular sounds. The patterns of normal breath sounds are created by the effect of body structures on air moving through airway. Normal lung sounds can be considered abnormal when the sound occurs in an area in which the sounds should not be present.
Sounds of this kind can be heard in the chests of most people as they breathe normally: Bronchial and vesicular breathing have several characteristics that make them simple to identify. Bronchial breath sounds are loud when the breath is exhaled. Vesicular sounds, in contrast, are relatively quiet during expiration.