A nurse is caring for a child with croup presenting with a barking cough. The parents are concerned about the child’s alarming cough. Which of the following explanation behind the cough should the nurse provide?
“The cough indicates a severe allergic reaction that is causing the airways to constrict rapidly.”
“The cough is a reflex to clear mucus and other secretions from the lungs in children with a respiratory illness.”
“The cough is caused by inflammation and swelling in the trachea and the bronchi, leading to airway narrowing.”
“The child is making this sound due to anxiety and distress about their condition.”
The Correct Answer is C
Croup is a viral infection that causes inflammation and swelling of the upper airway structures, especially the larynx, trachea, and sometimes bronchi, resulting in the characteristic barking cough and respiratory symptoms.
Rationale for correct answer:
3. “The cough is caused by inflammation and swelling in the trachea and the bronchi, leading to airway narrowing.” The hallmark barking cough of croup occurs because inflammation narrows the airway, causing turbulent airflow and irritation that triggers the cough reflex. This swelling reduces the airway diameter, producing the distinctive "seal-like" sound and respiratory distress.
Rationale for incorrect answers:
1. “The cough indicates a severe allergic reaction that is causing the airways to constrict rapidly.” While allergic reactions can cause airway constriction, the croup cough is not due to an allergic process but an inflammatory viral infection.
2. “The cough is a reflex to clear mucus and other secretions from the lungs in children with a respiratory illness.” The cough in croup is primarily due to upper airway narrowing, not just mucus clearance from the lungs.
4. “The child is making this sound due to anxiety and distress about their condition.” Anxiety may worsen respiratory symptoms but is not the cause of the characteristic barking cough.
Take home points
- The barking cough in croup is caused by inflammation and swelling of the upper airway leading to narrowing.
- Understanding this helps caregivers appreciate the importance of treatment to reduce airway edema.
- Reassure parents that the cough is a sign of the body’s response to airway irritation, not anxiety or allergy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A nighttime cough in a young child without fever often indicates mild upper respiratory irritation or postnasal drip. Non-pharmacologic comfort measures can help reduce coughing and promote better sleep without unnecessary medication.
Rationale for correct answer:
3. Raising the head of the baby’s crib can help reduce coughingby promoting drainage of nasal secretions and reducing postnasal drip that irritates the throat. This simple intervention is safe, non-invasive, and can improve the child’s comfort and sleep quality.
Rationale for incorrect answers:
1. Steam vaporizersplaced too close can cause burns or be a safety hazard. Cold mist humidifiers used properly can help, but the placement should be safe and not directly next to the child’s face or crib.
2. Nonprescription cough and cold medicinesare not recommended for children under 2 years due to lack of efficacy and potential serious side effects. The FDA advises against their use in infants and toddlers.
4. Antibioticsare not appropriate without signs of bacterial infection such as fever or purulent symptoms. Most coughs in toddlers are viral and self-limiting.
Take home points
- For mild nighttime cough without fever in toddlers, non-pharmacologic measures like elevating the head of the crib can improve comfort.
- Avoid over-the-counter cough and cold medicines in children under 2 due to safety concerns.
- Antibiotics should not be prescribed unless bacterial infection is clearly suspected.
Correct Answer is D
Explanation
Croup (laryngotracheobronchitis)is a viral infection (commonly caused by the parainfluenza virus) that leads to inflammation and narrowing of the larynx and trachea, resulting in upper airway obstruction.
It typically affects children between 6 months and 3 years old. Symptoms are often worse at night and may follow an upper respiratory infection.
Rationale for correct answer:
4. The hallmark signs, barking cough and difficulty breathing, are classic indicators of croup. The cough results from laryngeal swelling, and inspiratory stridor occurs due to narrowing of the upper airway. Treatment typically includes humidified air, corticosteroids (e.g., dexamethasone), and, in moderate to severe cases, nebulized epinephrine to reduce airway edema.
Rationale for incorrect answers:
1. Cystic fibrosisis a genetic disorder causing thick mucus secretions affecting the lungs and pancreas. It presents with chronic cough, recurrent infections, and malabsorption, not a barking cough or acute airway obstruction.
2. Asthma causes wheezing, shortness of breath, and chest tightness due to lower airway bronchoconstriction, not a barking cough or stridor.
3. Epiglottitispresents with drooling, dysphagia, high fever, tripod positioning, and absence of cough not a barking cough. It’s a medical emergency due to risk of complete airway obstruction.
Take home points
- Barking cough and stridor are hallmark signs of croup which is viral and usually mild to moderate.
- Drooling, no cough, and high fever are symptoms of epiglottitis a bacterial emergency.
- Wheezing and chest tightness are typical of asthma.
- Chronic productive cough and malabsorption are symptoms of cystic fibrosis.
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