Question

A 12-year-old child presents with an uncomplicated upper respiratory tract infection (URTI). What is the most appropriate next radiological investigation?

• A. No radiological investigation
• B. HRCT chest
• C. CECT chest
• D. Chest X-ray

Hint:

Simple URTI is clinical — imaging children without red flags only adds needless radiation.

Answer 1

The Correct Option is A

Step 1: Recognise the nature of the illness.
An uncomplicated upper respiratory tract infection in a child is a clinical diagnosis. It is overwhelmingly viral and self-limiting (common cold, pharyngitis, rhinosinusitis).

Step 2: Apply imaging appropriateness principles.
Routine imaging is not indicated for an uncomplicated URTI. Investigations are reserved for warning features such as suspected lower respiratory tract involvement (pneumonia), persistent high fever, respiratory distress or failure to improve. In their absence, the correct answer is no radiological investigation, in keeping with ALARA (avoiding unnecessary radiation in children).

Step 3: Eliminate the other options.
• Chest X-ray would only be justified if pneumonia or lower-tract disease were suspected; a simple URTI does not warrant it.
• HRCT is for interstitial lung disease/bronchiectasis evaluation — far beyond a URTI and a high radiation burden.
• CECT adds contrast and even more radiation, entirely inappropriate here.

Step 4: Conclusion.
An uncomplicated URTI in a 12-year-old needs no imaging. Key fact: URTI is a clinical diagnosis; radiology is unnecessary unless red-flag features of lower-tract disease appear, especially given radiation concerns in children.