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Review Question - QID 210899

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QID 210899 (Type "210899" in App Search)
A 9-year-old boy is brought to the emergency department by ambulance due to difficulty breathing. On presentation he is found to be straining to breathe. Physical exam reveals bilateral prolonged expiratory wheezing, difficulty speaking, and belly breathing. Radiographs also reveal hyperinflation of the lungs. He is given oxygen as well as albuterol, which begins to reverse the flow limitation in the airway segments of this patient. The airway segment that is most susceptible to this type of flow limitation has which of the following characteristics?