A previously healthy school-age child develops a cough and a low-grade fever. The pediatric nurse practitioner auscultates wheezes in all lung fields. Which diagnosis is most likely?

A previously healthy school-age child develops a cough and a low-grade fever. The pediatric nurse practitioner auscultates wheezes in all lung fields. Which diagnosis is most likely?

• A. Bronchiolitis
• B. Atypical pneumonia
• C. Bacterial pneumonia
• D. Bronchitis

Answer: (B)

When a school-age child has a cough with a low-grade fever and wheezes heard across multiple lung fields, think of atypical pneumonia. This pattern is common with Mycoplasma pneumoniae in older children, where the illness tends to be gradual with a milder fever and a dry or minimally productive cough, and lung sounds can be diffusely wheezed due to airway inflammation. Chest imaging in atypical pneumonia often shows interstitial or patchy infiltrates rather than a single lobar consolidation, which helps distinguish it from classic bacterial pneumonia. Bronchiolitis is more typical in younger children with viral symptoms and focal wheezing, while bronchitis usually presents with a cough but less likelihood of diffuse wheezing and lower respiratory involvement. So the presentation aligns best with an atypical pneumonia.

When a school-age child has a cough with a low-grade fever and wheezes heard across multiple lung fields, think of atypical pneumonia. This pattern is common with Mycoplasma pneumoniae in older children, where the illness tends to be gradual with a milder fever and a dry or minimally productive cough, and lung sounds can be diffusely wheezed due to airway inflammation. Chest imaging in atypical pneumonia often shows interstitial or patchy infiltrates rather than a single lobar consolidation, which helps distinguish it from classic bacterial pneumonia. Bronchiolitis is more typical in younger children with viral symptoms and focal wheezing, while bronchitis usually presents with a cough but less likelihood of diffuse wheezing and lower respiratory involvement. So the presentation aligns best with an atypical pneumonia.