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.
Normal breath sounds vary according to the diameter of the airways. For example, anteriorly over the trachea, you should hear a loud, high-pitched, hollow sound called a bronchial breath sound. It is abnormal to hear this sound over peripheral lung tissue, that is, away from the trachea and the large bronchi.Over the mainstem bronchi, which are relatively large-diameter airways, you should hear medium-pitched and quieter sounds, called bronchovesicular breath sounds.t is abnormal to hear this sound over peripheral lung tissue, that is, away from the trachea and the large bronchi. Over the mainstem bronchi, which are relatively large-diameter airways, you should hear medium-pitched and quieter sounds, called bronchovesicular breath sounds.