What symptom is a key indicator of pneumonia?

• A. Greenish sputum
• B. Joint pain
• C. Skin rash
• D. Headaches

Answer: (A)

Greenish sputum is a key indicator of pneumonia because it often signifies the presence of infection and the type of pathogens causing it. In pneumonia, the air sacs in the lungs become inflamed, typically due to bacteria or viruses, causing the body to produce mucus. This mucus may become discolored, often appearing yellow or green, due to the accumulation of white blood cells and debris fighting the infection.

The presence of greenish sputum can help healthcare professionals assess the severity of the infection and determine the appropriate treatment. While other symptoms like joint pain, skin rash, and headaches can arise from different conditions and infections, they are not specifically indicative of pneumonia. Joint pain may be more associated with systemic infections or inflammatory conditions, while skin rashes can point to allergic reactions or viral infections. Headaches are quite general and can occur with many illnesses but are not decisive indicators of pneumonia. Hence, greenish sputum stands out as a significant symptom specifically linked to pneumonia.