A paramedic is dispatched to a rural area for a patient experiencing a severe allergic reaction. Upon arrival, the patient is unresponsive, hypotensive, and has audible stridor. The paramedic has limited resources on scene and is awaiting backup. What is the most immediate and critical intervention for this patient?
- AAdminister 50 mg Diphenhydramine IV.
- BPrepare for cricothyrotomy due to impending airway obstruction.
- CEstablish IV access and initiate a rapid fluid bolus.
- DAdminister 0.3 mg Epinephrine 1:1,000 intramuscularly.
Show answer & explanationAnswer & explanation
Correct answer: B. Prepare for cricothyrotomy due to impending airway obstruction.
The patient has signs of severe anaphylaxis with impending airway compromise (stridor, unresponsiveness, hypotension). While Epinephrine is the definitive treatment for anaphylaxis, the audible stridor indicates significant upper airway swelling that could rapidly lead to complete obstruction. In a rural setting with limited resources and awaiting backup, preparing for and potentially performing a cricothyrotomy is the most immediate and critical intervention to secure the airway before complete obstruction occurs, as other interventions may not work quickly enough or be feasible in a completely obstructed airway.
Why the other options are wrong
- A. Diphenhydramine is an adjunct but does not address the immediate life-threatening airway obstruction or hypotension as effectively as epinephrine or airway management.
- C. Fluid bolus is important for hypotension, but secondary to securing the airway in this rapidly deteriorating situation.
- D. Epinephrine is critical, but if the airway completely obstructs, it will be difficult to oxygenate the patient, even with good circulation. Airway takes precedence when impending obstruction is present.
Anaphylaxis Airway Management
Prioritizing and securing the airway in severe anaphylaxis, especially when signs of upper airway obstruction (e.g., stridor, angioedema) are present, which can rapidly progress to complete obstruction.
- Airway compromise is a primary cause of death in anaphylaxis.
- Stridor indicates severe upper airway swelling.
- Prepare for advanced airway (intubation, cricothyrotomy) proactively.
Memory trick: Airway's tight, or the patient's flight to endless night.