A patient has been diagnosed recently with an upper respiratory infection. His brother arrives and would like to visit. The patient says he is not feeling strong enough to have visitors. Which symptom would indicate to the nurse that the client is developing a complication?

A. Dry, occasional cough: A dry, occasional cough is a common symptom in upper respiratory infections and does not, by itself, indicate a complication. It may persist for some time as the illness resolves and is generally not alarming unless it becomes productive or severe. B. Temperature or Febrile 103 degrees F (39.4 degrees C): A high-grade fever is a significant concern and may indicate a developing complication, such as progression to pneumonia or a more systemic infection. It suggests the body is mounting an intense response, which can be dangerous, especially in a patient feeling weak. C. Scratch throat: A scratchy or sore throat is one of the most common and mild symptoms of an upper respiratory infection. It typically resolves without complication and does not point toward serious progression of illness. D. Clear, watery drainage from the nose: Rhinorrhea or nasal discharge is expected in viral upper respiratory infections and is not considered a complication. It typically lessens as the infection resolves and does not indicate worsening of the condition