A 12-year-old child presents with mild fever, runny nose, sore throat, and cough for 3 days. Clinical examination is consistent with an upper respiratory tract infection (URTI). There is no respiratory distress, oxygen desaturation, or focal chest findings. What is the most appropriate next step regarding imaging?

1. A

   A. No further radiological investigation is required

2. B

   B. Digital chest X-ray

3. C

   C. Plain CT chest

4. D

   D. HRCT chest

Appeared in: INI-CET EXAM -2026

Explanation

• The diagnosis of an uncomplicated upper respiratory tract infection (URTI) is based on clinical history and physical examination.
• In a child who is clinically stable, well-hydrated, and shows no signs of respiratory distress or complications, radiological imaging is not necessary.
• Guidelines recommend against routine imaging for uncomplicated URTIs to avoid unnecessary radiation exposure and costs, as it does not alter management.
• The absence of 'red flag' signs like respiratory distress, hypoxemia, or focal chest findings confirms that a simple, supportive approach is sufficient.

Why Other Options Were Wrong

• Option B: A chest X-ray is not indicated because there are no clinical signs or symptoms suggesting a lower respiratory tract infection, such as pneumonia (e.g., respiratory distress, crackles on auscultation, hypoxemia).
• Option C: A plain CT of the chest delivers a much higher radiation dose than an X-ray and provides no additional benefit for diagnosing an uncomplicated URTI. Its use is not justified.
• Option D: HRCT is a highly specialized imaging tool for evaluating the fine structure of the lungs (interstitium) and has an even higher radiation dose. It has no role in the diagnosis of acute respiratory infections.

Related Visual

Clinical Relevance

• Nursing practice connection: Use the key finding related to Diagnostic workup for pediatric upper respiratory tract infection (URTI) to guide bedside assessment, documentation, and the next nursing action.
• A key nursing responsibility is to advocate for the patient by questioning unnecessary tests and procedures, especially those involving radiation in children (ALARA principle).
• Nurses must be skilled in performing and documenting a thorough respiratory assessment to identify red flag signs (increased work of breathing, tachypnea, nasal flaring, retractions, grunting, cyanosis, low SpO2) that warrant escalation and further investigation.
• This case highlights the importance of antibiotic stewardship. Since most URTIs are viral, avoiding unnecessary investigations also reinforces that antibiotics are not needed, preventing antibiotic resistance.

How to Approach the Question

• First, analyze the patient's clinical presentation: a 12-year-old with symptoms of a common cold (URTI).
• Pay close attention to the negative findings provided: 'no respiratory distress, oxygen desaturation, or focal chest findings.' These are crucial clues.
• Recognize that these negative findings rule out immediate, severe complications and point towards an uncomplicated illness.
• The question asks for the 'most appropriate' step regarding imaging. This requires you to weigh the benefits of each imaging modality against its risks (like radiation exposure).
• For an uncomplicated URTI, the benefit of imaging is zero, as it won't change management. The risk of radiation, though small for a single X-ray, is not zero and should be avoided if unnecessary.
• Eliminate the options based on this risk-benefit analysis. CT and HRCT have high radiation and are for complex cases. A chest X-ray is for suspected pneumonia (lower respiratory infection), which is not suggested here. Therefore, no imaging is the correct choice.

Concept Tested & Keywords

• Concept Tested: Diagnostic workup for pediatric upper respiratory tract infection (URTI)
• Stem keywords: 12-year-old child, upper respiratory tract infection, mild fever, runny nose, sore throat, cough
• Lead-in keywords: most appropriate next step, imaging
• Clinical cues: The absence of respiratory distress, oxygen desaturation, or focal chest findings is the key clinical information indicating that the infection is uncomplicated and confined to the upper airway, making imaging unnecessary.

Question ID

Q0kBZeOFfmhwPk3V6qItzc

Copy ID

Reference Book

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1653-1655

E6 Nelson Textbook of Pediatrics(2024) — Volume 2 p. 302-304