Airway noise originating in the nose, nasopharynx and oropharynx is known as:: (A) Stridor, (B) Steor, (C) Both of the above, (D) None of the above
Answer is B. Stridor is a harsh noise produced by turbulent airflow through a paially obstructed airway. It may be inspiratory, expiratory, or both (biphasic). The term steor is used to describe airway noise originating in the nose, nasopharynx, and oropharynx; therefore, stridor is generally of laryngeal or tracheal origin.