Examkin

Question

Difficulty: HardPediatric Gastrointestinal Disorders

A 2-year-old girl is brought to the emergency department 30 minutes after accidentally ingesting a liquid drain cleaner containing sodium hydroxide. She is crying, drooling continuously, and refusing to swallow. Her temperature is 37.2°C (99.0°F), heart rate is 140/min, respiratory rate is 30/min, and oxygen saturation is 98% on room air. Physical examination reveals mild inspiratory stridor, swollen erythematous lips, and small ulcerations on the buccal mucosa. Arrange the following management steps in the most appropriate chronological sequence for this patient.

  1. 1Assess airway patency and ensure cardiopulmonary stability
  2. 2Remove contaminated clothing and irrigate exposed external skin with water
  3. 3Maintain nil per os (NPO) status and establish intravenous access
  4. 4Perform an upper gastrointestinal endoscopy to evaluate mucosal injury

Answer

The correct sequence is: 1) Assess airway patency and ensure cardiopulmonary stability, 2) Remove contaminated clothing and irrigate exposed external skin with water, 3) Maintain nil per os (NPO) status and establish intravenous access, and 4) Perform an upper gastrointestinal endoscopy to evaluate mucosal injury.
The management of alkaline caustic ingestion (like sodium hydroxide) must strictly follow a stepwise approach prioritizing life-saving interventions over diagnostic ones. Airway assessment is paramount, especially when clinical signs like stridor suggest developing laryngeal edema. Once the airway and hemodynamics are secure, external decontamination via clothing removal and irrigation stops ongoing dermal liquefactive necrosis. Next, securing IV access for fluids and analgesia while maintaining strict NPO status provides necessary supportive care without risking emesis. Finally, upper endoscopy is indicated to assess the severity of mucosal injury and stricture risk, but it is intentionally delayed for 12 to 24 hours to allow the patient to stabilize and to decrease the immediate risk of iatrogenic perforation.

Step-by-Step Solution

1
Assess airway patency and ensure cardiopulmonary stability.
The patient's airway is secured, addressing the immediate life threat indicated by her inspiratory stridor.
Airway compromise is the most rapid cause of mortality in caustic ingestions due to severe laryngeal and epiglottic edema.
2
Remove contaminated clothing and irrigate exposed external skin with water.
Ongoing external tissue damage is halted.
Alkaline agents cause deep liquefactive necrosis; immediate removal of the source prevents further deep tissue penetration.
3
Maintain nil per os (NPO) status and establish intravenous access.
The gastrointestinal tract is rested, and a route for hydration and pain control is secured.
Keeping the patient NPO prevents emesis, which would otherwise cause secondary injury to the esophagus and airway. Neutralizing agents or activated charcoal are strictly contraindicated.
4
Perform an upper gastrointestinal endoscopy to evaluate mucosal injury.
The severity of esophageal and gastric burns is graded (e.g., Zargar classification) to guide long-term management and stricture monitoring.
Endoscopy is delayed until the patient is hemodynamically and clinically stable (usually 12-24 hours) to minimize the risk of iatrogenic perforation while accurately assessing the full extent of the tissue damage.

Key Concept

The acute management of caustic ingestions sequentially prioritizes airway stabilization, external decontamination, supportive care with strict avoidance of emesis or neutralization, and delayed endoscopy (12-24 hours) to assess mucosal damage.
Estimated Time:1m 30s
Rate this question

Topics

Pediatric Gastrointestinal Disorders

More questions from this topic