According to various embodiments, an airway visualization device may facilitate the selection and insertion of airway devices. The device may allow clinicians to more effectively determine the appropriate diameter tracheal tube for a particular patient, which in turn may decrease work of breathing and/or discomfort for the patient. In particular embodiments, the airway visualization device provides a displayed image of the patients airway upon which a representative tracheal tube or other airway device may be superimposed. The clinician may evaluate the superimposed image to determine if the representative tracheal tube is appropriately sized for the airway.
