Acute Laryngotracheobronchitis (Croup): NCLEX Nursing Guide
Acute Laryngotracheobronchitis (LTB), commonly known as croup, is a viral infection that affects the upper airway, leading to inflammation of the larynx, trachea, and bronchi. It is a high-yield NCLEX topic, especially in pediatric nursing, as it commonly affects children under age 5 and can progress to severe respiratory distress if not properly managed.
In this guide, we’ll cover croup’s key signs, symptoms, nursing interventions, and NCLEX-relevant information to help you answer pediatrics and respiratory distress questions with confidence.
🛑 Key Symptoms of Acute Laryngotracheobronchitis (LTB)
✅ Slow Onset: Unlike epiglottitis, which has a sudden onset, croup symptoms develop gradually.
✅ Barking Cough: Often described as a "seal-like" cough.
✅ Crowing Sound (Stridor): An inspiratory stridor is a classic sign of upper airway obstruction.
✅ Low-Grade Fever (<102°F): Mild fever is common, differentiating it from bacterial infections.
✅ Nighttime Worsening: Symptoms worsen at night, especially in the fall and winter seasons.
✅ Restlessness & Retractions: Children may exhibit suprasternal retractions, increased respiratory rate, and restlessness due to respiratory distress.
✅ Hypoxic Progression: If untreated, severe cases can progress to hypoxia, requiring emergency intervention.
📖 NCLEX Tips: Differentiating Croup from Other Pediatric Respiratory Conditions
| Condition | Key Symptoms | NCLEX Clue |
|---|---|---|
| Croup (LTB) | Barking cough, inspiratory stridor, low-grade fever, gradual onset | Worse at night, viral, affects kids <5 years |
| Epiglottitis | Drooling, dysphagia, high fever, muffled voice, sudden onset | Do NOT inspect throat—risk of airway obstruction |
| Bronchiolitis (RSV) | Wheezing, nasal congestion, tachypnea | Common in infants <2 years |
| Asthma | Expiratory wheezing, dyspnea, use of accessory muscles | Reversible with bronchodilators (e.g., albuterol) |
✅ NCLEX Pro Tip: If a child with stridor and barking cough suddenly worsens with severe respiratory distress—think airway emergency and prepare for possible intubation.
🏥 Nursing Interventions for Croup
🔹 Mild to Moderate Cases (Home Care & Outpatient)
✔ Cool Mist Humidification: Helps soothe inflamed airways.
✔ Hydration: Encourage fluids to prevent dehydration.
✔ Positioning: Keep the child in an upright position to ease breathing.
✔ Dexamethasone (Corticosteroids): Reduces inflammation in moderate cases.
🔹 Severe Cases (Hospitalization Needed)
⚠️ Nebulized Epinephrine: Used for severe stridor & respiratory distress.
⚠️ Oxygen Therapy: If SpO₂ drops below 90%, administer humidified oxygen.
⚠️ Intubation Preparation: If worsening hypoxia occurs, prepare for emergency intubation.
📌 NCLEX Practice Question
A nurse is caring for a 2-year-old child with acute laryngotracheobronchitis. The child has a barking cough, inspiratory stridor, and increased work of breathing. Which intervention should the nurse prioritize?
A) Encourage oral hydration and provide a cool mist humidifier.
B) Administer nebulized epinephrine and dexamethasone as prescribed.
C) Lay the child flat and monitor for worsening symptoms.
D) Offer a warm environment and thickened feedings.
✅ Correct Answer: B – Nebulized epinephrine and corticosteroids are priority treatments for moderate to severe croup, reducing airway inflammation and stridor.
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