A nurse is reviewing assessment findings for a 2-year-old toddler who has bronchitis. For which of the following findings should the nurse anticipate a order for a chest x-ray to rule out Pneumonia?

A. Coryza is incorrect because coryza refers to nasal congestion and runny nose, which are common symptoms of upper respiratory infections and viral bronchitis. These findings alone do not typically warrant a chest x-ray to rule out pneumonia. B. Axillary temperature 40°C (104°F) is correct because a high fever in a toddler with respiratory symptoms raises concern for a more serious lower respiratory infection such as pneumonia. Pneumonia often presents with high fever, tachypnea, respiratory distress, and possible focal lung findings. A chest x-ray may be ordered to confirm diagnosis and guide treatment. C. Wheezing is incorrect because wheezing is commonly associated with bronchitis and airway inflammation. While wheezing can occur in pneumonia, it is not by itself a strong indicator requiring imaging unless accompanied by severe symptoms such as high fever or respiratory distress. D. Fatigue is incorrect because mild fatigue is common in many viral illnesses, including bronchitis. It is not a specific finding that independently indicates pneumonia.