An upper respiratory infection with a dry cough and mild fever under 100 F is most consistent with which?

An upper respiratory infection with a dry cough and mild fever under 100 F is most consistent with which?

• A. Bronchitis
• B. Acute Bronchitis
• C. Pneumonia
• D. Emphysema

Answer: (B)

Acute bronchitis is the best fit here because it often follows a viral upper respiratory infection and presents with a new cough that is dry and a low fever. The fever stays mild (under 100 F) and there are no signs pointing to pneumonia, such as a high fever, productive sputum, chest pain, or focal lung findings. Emphysema is a chronic condition with long-standing dyspnea and characteristic lung changes, not an acute URI pattern. Pneumonia would typically show more systemic symptoms and lung consolidation on exam or imaging, not just a dry cough after an URI. This presentation matches acute bronchitis best.

Acute bronchitis is the best fit here because it often follows a viral upper respiratory infection and presents with a new cough that is dry and a low fever. The fever stays mild (under 100 F) and there are no signs pointing to pneumonia, such as a high fever, productive sputum, chest pain, or focal lung findings. Emphysema is a chronic condition with long-standing dyspnea and characteristic lung changes, not an acute URI pattern. Pneumonia would typically show more systemic symptoms and lung consolidation on exam or imaging, not just a dry cough after an URI. This presentation matches acute bronchitis best.