A 5-year-old boy is rushed to the emergency department by his parents due to severe, sudde… — USMLE Step 2 CK

A 5-year-old boy is rushed to the emergency department by his parents due to severe, sudden breathing difficulties that began earlier today. The family immigrated to the United States three weeks ago, and the child's vaccination records are unavailable. His parents note that he was completely healthy yesterday but developed a high fever and sore throat this morning. In the triage area, the child is noted to be highly anxious, leaning forward with his hands on his knees, and his chin thrust outward. He is continuously drooling and responds to questions with a quiet, muffled voice. Vital signs show a temperature of $39.5^\circ\text{C}$ ( $103.1^\circ\text{F}$ ), heart rate of $148$ /min, respiratory rate of $38$ /min, and oxygen saturation of $94\%$ on room air. Marked suprasternal retractions are visible, and high-pitched inspiratory stridor is heard. Which of the following is the most appropriate next step in management?

Endotracheal intubation in the operating roomAnswer
B
Portable lateral neck radiography
C
Administration of nebulized racemic epinephrine
D
Immediate administration of intravenous ceftriaxone
E
Arterial blood gas analysis for acid-base status

Answer

The most appropriate next step in management is endotracheal intubation in the operating room.

The patient presents with the classic '4 Ds' of acute epiglottitis: Drooling, Dysphagia, Dysphonia (muffled voice), and Distress, along with high fever and tripod positioning. In a newly immigrated, likely unimmunized child, Haemophilus influenzae type b is the most probable etiology. Because epiglottitis involves severe supraglottic edema that can progress rapidly to complete airway obstruction, the single most critical step in management is securing the airway. This should be performed via endotracheal intubation in a highly controlled environment, such as an operating room, by the most experienced provider available (e.g., an anesthesiologist or otolaryngologist). Until the airway is secure, the medical team must avoid any interventions that could agitate the child and trigger acute laryngospasm.

Step-by-Step Solution

Identify the clinical syndrome from the patient's presentation.

The acute onset of high fever, toxic appearance, drooling, muffled voice, and tripod positioning in an unvaccinated child is highly characteristic of acute epiglottitis.

Recognizing the classic signs of supraglottic swelling is required to anticipate sudden airway obstruction and guide immediate management.

Assess the stability of the patient's airway based on the physical exam.

The patient exhibits severe respiratory distress, marked retractions, and inspiratory stridor, indicating an impending complete airway obstruction.

Airway patency is the most critical priority in emergency pediatric triage, superseding all diagnostic testing.

Determine the most appropriate initial intervention to prevent mortality.

The immediate priority is securing the airway via endotracheal intubation in a controlled setting, such as the operating room, by the most experienced provider available.

Any procedure that causes anxiety, pain, or crying (like IV placement, blood draws, or examining the throat) can precipitate sudden and complete loss of the airway.

Key Concept

Acute epiglottitis presents with a toxic appearance, drooling, dysphagia, distress, and tripod positioning. Management consists of keeping the child calm and immediately securing the airway via endotracheal intubation in a controlled setting.

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