Your patient with facial burns was talking clearly a few minutes ago, but his voice now seems to be developing some hoarseness. What is happening to his airway?
1) The glottic opening is enlarging, thus making this sound.
2) His nasopharynx is starting to become edematous.
3) Soot has gotten into his oropharynx and is irritating the uvula.
4) Swelling is building up in and around the vocal cords.