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Zorluk: KolayPediatric Respiratory Disorders

A 7-month-old boy is brought to the clinic in January by his parents due to a 3-day history of nasal congestion, clear rhinorrhea, and a low-grade fever. Over the last 24 hours, he has developed a harsh cough and rapid breathing. The patient was born at term and has received all age-appropriate vaccinations. His temperature is 37.9°C (100.2°F), heart rate is 135/min, respiratory rate is 58/min, and oxygen saturation is 95% on room air. Physical examination demonstrates nasal flaring, mild intercostal retractions, and diffuse bilateral wheezing with fine crackles. Which of the following is the most appropriate next step in management?

  1. Supportive care with nasal suctioning and hydrationCevap
  2. B
    Administration of nebulized albuterol
  3. C
    Prescription of oral dexamethasone
  4. D
    Prescription of oral amoxicillin
  5. E
    Posteroanterior and lateral chest radiography

Cevap

Supportive care with nasal suctioning and hydration
The correct answer emphasizes that acute viral bronchiolitis is a self-limiting disease primarily caused by RSV. Because the airway narrowing is due to sloughed epithelial cells, mucus plugging, and submucosal edema, the mainstay of therapy is entirely supportive. Nasal suctioning helps relieve upper airway obstruction, which is crucial since infants are obligate nose breathers, and maintaining hydration prevents clinical deterioration. Since this patient is well-oxygenated (SpO2 > 90%) and in only mild distress, supportive management without medications or imaging is the standard of care.

Adım Adım Çözüm

1
Analyze the patient's age, season, and clinical presentation.
A 7-month-old infant presenting in winter with upper respiratory symptoms progressing to wheezing, crackles, and tachypnea.
This is the classic presentation of acute viral bronchiolitis, most commonly caused by Respiratory Syncytial Virus (RSV).
2
Assess the severity of the patient's respiratory distress.
The patient has mild retractions and tachypnea but maintains a normal oxygen saturation of 95% on room air.
Patients with oxygen saturations above 90% and no signs of severe respiratory failure or dehydration can be managed conservatively.
3
Determine the most appropriate management based on disease severity.
Supportive care focusing on maintaining airway patency (nasal suctioning) and adequate hydration is indicated.
Pharmacologic interventions such as bronchodilators, steroids, and antibiotics lack efficacy in standard viral bronchiolitis.

Anahtar Kavram

The primary management for mild to moderate acute viral bronchiolitis is supportive care, avoiding unnecessary pharmacologic interventions like bronchodilators or corticosteroids.
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