In pulmonary tuberculosis, which symptom is commonly observed on examination?

In pulmonary tuberculosis, which symptom is commonly observed on examination?

• A. Cough
• B. Rash on trunk
• C. Abdominal pain
• D. Jaundice

Answer: (A)

A persistent cough is the symptom most commonly observed in pulmonary tuberculosis. This reflects active involvement of the lungs, where inflammation and infection provoke ongoing coughing that may be productive with sputum. On examination, you may hear crackles or reduced breath sounds over the affected areas, especially in the upper lobes, though sometimes the exam is normal despite active disease. The other options don’t fit the typical pulmonary presentation: a rash on the trunk is not a standard finding of lung TB and would suggest a skin condition or drug reaction, while abdominal pain or jaundice are not characteristic features of primary pulmonary tuberculosis and would point to other organ involvement or conditions.

A persistent cough is the symptom most commonly observed in pulmonary tuberculosis. This reflects active involvement of the lungs, where inflammation and infection provoke ongoing coughing that may be productive with sputum. On examination, you may hear crackles or reduced breath sounds over the affected areas, especially in the upper lobes, though sometimes the exam is normal despite active disease. The other options don’t fit the typical pulmonary presentation: a rash on the trunk is not a standard finding of lung TB and would suggest a skin condition or drug reaction, while abdominal pain or jaundice are not characteristic features of primary pulmonary tuberculosis and would point to other organ involvement or conditions.