Which symptom set is commonly seen in CAP?

• A. Headache, stiff neck, photophobia
• B. Rash, joint swelling, photophobia
• C. Nausea, vomiting, diarrhea
• D. Cough, sputum production, dyspnea, and fever

Answer: (D)

The main idea being tested is what symptom pattern most clearly signals community-acquired pneumonia. CAP characteristically causes lower respiratory tract symptoms along with systemic illness. The classic presentation includes a productive cough with sputum, shortness of breath or dyspnea, and fever, reflecting an infection in the lung parenchyma and the body’s inflammatory response. This combination—cough with sputum production, breathing difficulty, and fever—best fits pneumonia and helps distinguish it from other conditions.

The other symptom clusters align more with different diseases. Headache with stiff neck and photophobia suggests meningitis or other intracranial processes. Rash with joint swelling and photophobia can point to other inflammatory or infectious etiologies with rash. Nausea, vomiting, and diarrhea are nonspecific and common to many illnesses, such as gastroenteritis, rather than being the hallmark of pneumonia. In short, the cough with sputum production, dyspnea, and fever specifically captures the respiratory and infectious nature of CAP.