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Difficulty: MediumPediatric Infectious Diseases

An 8-month-old female infant is evaluated at an urgent care clinic in mid-February due to difficulty breathing and poor feeding for the past 24 hours. Her parents report that she developed clear rhinorrhea, a mild cough, and a low-grade fever three days ago. She was born at 39 weeks gestation without complications. When asked about her development, the parents note she sits without support and transfers objects from hand to hand, but she is not yet able to pull herself to a stand. Her temperature is 38.1°C (100.6°F), pulse is 155/min, and respiratory rate is 58/min. Oxygen saturation is 95% on room air. Physical examination reveals a fussy infant with prominent subcostal retractions and nasal flaring. Lung auscultation demonstrates diffuse expiratory wheezing and scattered coarse crackles bilaterally. Which of the following is the most appropriate next step in management?

  1. Provide supportive care with nasal suctioning and hydrationAnswer
  2. B
    Administer a trial of nebulized albuterol
  3. C
    Prescribe a course of oral amoxicillin
  4. D
    Administer the live-attenuated intranasal influenza vaccine
  5. E
    Refer the patient for early intervention physical therapy

Answer

Provide supportive care with nasal suctioning and hydration
The correct approach for a child with acute viral bronchiolitis who is maintaining adequate oxygenation (typically ≥ 90%) is supportive care. This involves clearing the nasal passages with suctioning to reduce respiratory effort, especially before feeding, and ensuring adequate hydration. Because bronchiolitis is a self-limiting viral disease, pharmacologic interventions such as bronchodilators, corticosteroids, and antibiotics have not been shown to alter the disease course and are not routinely recommended.

Step-by-Step Solution

1
Analyze the clinical presentation and timing.
An infant presenting in winter with a viral prodrome followed by respiratory distress, wheezing, and crackles.
This classic pattern points to acute viral bronchiolitis, most commonly caused by Respiratory Syncytial Virus (RSV).
2
Assess the severity of the respiratory distress.
The infant is tachypneic with retractions but maintains an oxygen saturation of 95% on room air.
Oxygen supplementation is not currently indicated since the saturation remains at or above acceptable levels (typically ≥ 90-92%).
3
Evaluate the infant's developmental milestones.
Sitting without support and transferring objects are normal for an 8-month-old.
This rules out any underlying neuromuscular or developmental delay that might complicate airway management or require early intervention.
4
Determine the optimal evidence-based management strategy.
Supportive care focusing on airway clearance and fluid intake.
Current guidelines recommend against the routine use of bronchodilators, corticosteroids, or antibiotics in uncomplicated viral bronchiolitis.

Key Concept

Acute viral bronchiolitis management is primarily supportive, focusing on hydration and relief of nasal congestion, without the routine use of bronchodilators or antibiotics.
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Topics

Pediatric Infectious Diseases

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