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Difficulty: EasyPediatric Respiratory Disorders

A 10-month-old previously healthy female infant is brought to the urgent care facility by her father due to labored breathing. Symptoms began three days prior with nasal congestion and a mild fever. Today, she has been feeding poorly and breathing rapidly. On triage, her temperature is 38.0°C (100.4°F), heart rate is 165/min, respiratory rate is 62/min, and oxygen saturation is 88% on room air. Physical examination is notable for prominent intercostal retractions, head bobbing, and widespread crackles with scattered high-pitched wheezing. Based on the most likely diagnosis, which of the following interventions are indicated for this patient? Select all that apply.

  1. Application of supplemental oxygenAnswer
  2. Enteral or intravenous fluid rehydrationAnswer
  3. C
    Inhaled short-acting beta-agonist therapy
  4. D
    Oral corticosteroid course
  5. E
    Empiric oral azithromycin

Answer

The correct interventions are the application of supplemental oxygen and enteral or intravenous fluid rehydration.
The appropriate management strategy for this patient includes the application of supplemental oxygen and fluid rehydration. This infant's presentation is highly characteristic of severe viral bronchiolitis, typified by upper respiratory symptoms that progress to tachypnea, prominent retractions, wheezing, and crackles. Because this patient has significant hypoxemia (oxygen saturation of 88%) and signs of severe respiratory distress (head bobbing) combined with a history of poor feeding, she requires immediate admission. Supplemental oxygen is necessary to maintain saturations safely above 90%, and intravenous or nasogastric fluid rehydration is required to compensate for increased insensible losses and poor oral intake.

Step-by-Step Solution

1
Identify the clinical syndrome from the patient's presentation.
The patient is an infant presenting with a viral prodrome that rapidly progressed to lower respiratory distress (tachypnea, wheezing, and crackles), which is the classic presentation of acute viral bronchiolitis.
Establishing the correct diagnosis prevents the inappropriate use of asthma-specific or bacterial-specific therapies.
2
Assess the severity of the respiratory distress.
The presence of head bobbing, severe tachypnea (62/min), poor feeding, and notable hypoxemia (88%) indicates severe bronchiolitis with impending respiratory failure.
Severity dictates the level of intervention required, distinguishing candidates for outpatient monitoring from those needing hospital admission.
3
Determine the appropriate management bundle.
The standard of care for severe viral bronchiolitis is purely supportive, prioritizing respiratory support with supplemental oxygen to correct hypoxemia and fluids to correct dehydration.
Current pediatric guidelines mandate supportive care while explicitly advising against routine medications like bronchodilators, steroids, and antibiotics.

Key Concept

The cornerstone of management for viral bronchiolitis in infants is supportive care, primarily consisting of supplemental oxygen for hypoxemia and fluid rehydration for poor feeding; bronchodilators, corticosteroids, and antibiotics lack efficacy and are not indicated.
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Topics

Pediatric Respiratory Disorders

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