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Zorluk: ZorPediatric Respiratory Disorders

A 15-month-old toddler is evaluated in the outpatient clinic during mid-winter with a four-day history of low-grade fever, rhinorrhea, and worsening cough. His mother notes that he has been breathing faster than usual today and has been feeding slightly less, though he continues to produce wet diapers. The patient's past medical history is significant for atopic dermatitis, and both parents have a history of moderate persistent asthma. His temperature is 37.9∘C37.9^\circ\text{C} (100.2∘F100.2^\circ\text{F}), pulse is 148/min148/\text{min}, respirations are 58/min58/\text{min}, and pulse oximetry reveals an oxygen saturation of 95%95\% on room air. Physical examination shows an interactive child with mild intercostal retractions and copious nasal secretions. Auscultation of the lungs reveals a prolonged expiratory phase with widespread, high-pitched wheezing and bilateral coarse crackles. Which of the following is the most appropriate next step in the management of this patient?

  1. A
    Administration of aerosolized albuterol
  2. B
    Initiation of oral dexamethasone therapy
  3. Clearance of nasal secretions and maintenance of oral hydrationCevap
  4. D
    Empiric treatment with oral azithromycin
  5. E
    Administration of nebulized racemic epinephrine

Cevap

Clearance of nasal secretions and maintenance of oral hydration
The correct management for this patient is clearance of nasal secretions and maintenance of oral hydration. This toddler presents with classic signs of acute bronchiolitis, characterized by a viral prodrome (fever, rhinorrhea) followed by lower respiratory tract signs (tachypnea, wheezing, crackles) in a child under 2424 months of age. The most common viral etiology is Respiratory Syncytial Virus (RSV). A key distractor in this vignette is the patient's strong family history of asthma and personal history of atopic dermatitis. However, current pediatric guidelines strongly recommend against the use of bronchodilators or systemic corticosteroids in the management of first-time acute bronchiolitis, regardless of atopic risk factors. The underlying pathophysiology involves epithelial sloughing, mucosal edema, and copious mucus production rather than smooth muscle bronchospasm. Because the patient is maintaining adequate oxygenation (SpO 2≥90%_2 \geq 90\%) and shows no signs of severe dehydration, the mainstay of treatment is supportive care.

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1
Analyze the patient's age and clinical presentation.
The patient is a 15-month-old presenting during winter with a viral prodrome, tachypnea, wheezing, and crackles.
To establish the primary clinical syndrome, which is acute bronchiolitis (typically affecting children under 24 months).
2
Evaluate the patient's risk factors and vital signs.
The patient has a strong family history of asthma and personal history of atopy. Vital signs show tachypnea and tachycardia, but oxygen saturation is stable at 95%95\% on room air.
To determine illness severity and evaluate if the atopic history should change the acute management strategy.
3
Determine the appropriate evidence-based intervention.
Despite the asthma risk factors, current guidelines recommend against bronchodilators or corticosteroids for first-time bronchiolitis. The patient is not hypoxic, so supplemental oxygen is unnecessary.
To select the correct management, which relies purely on supportive care such as nasal suctioning and hydration.

Anahtar Kavram

Management of acute bronchiolitis in infants and toddlers
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Konular

Pediatric Respiratory Disorders

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