A nurse is caring for a toddler who has acute laryngotracheobronchitis and has been placed in a cool mist tent. Which of the following findings indicates that the treatment has been effective?

A. Decreased stridor indicates that the airway obstruction is improving, which is a primary goal of treatment for laryngotracheobronchitis. B. While improved hydration is important, it does not directly measure the effectiveness of the cool mist tent treatment. C. Decreased temperature can occur for various reasons and is not specific to the treatment of laryngotracheobronchitis. D. A barking cough is a symptom of laryngotracheobronchitis and its persistence would not indicate improvement.