A paramedic is assessing a 6-month-old infant who is unresponsive and apneic. The infant's pulse is 50 bpm. What is the most appropriate initial intervention?
- AAdminister 0.01 mg/kg Epinephrine IV/IO.
- BInitiate chest compressions immediately.
- CPerform a rapid primary assessment.
- DBegin positive pressure ventilations.
Show answer & explanationAnswer & explanation
Correct answer: D. Begin positive pressure ventilations.
For an infant with a pulse rate less than 60 bpm despite adequate oxygenation and ventilation, chest compressions are indicated. However, the initial priority for an unresponsive, apneic infant with bradycardia (pulse < 60 bpm) is to establish effective ventilation. Most pediatric bradycardias are secondary to hypoxia. Therefore, positive pressure ventilations should be initiated first to address the underlying cause and improve oxygenation. If the bradycardia persists despite adequate ventilation and oxygenation, then chest compressions are initiated.
Why the other options are wrong
- A. Epinephrine is given after compressions and ventilations have been initiated and are ineffective.
- B. Chest compressions are indicated if the pulse remains <60 bpm despite effective ventilations, but ventilation is the first step.
- C. A rapid primary assessment would already be complete to determine unresponsiveness, apnea, and bradycardia; the question asks for the 'most appropriate initial intervention' AFTER these findings are known.
Pediatric Bradycardia Management
Management of a slow heart rate in infants and children, which is most commonly secondary to hypoxia. Effective ventilation and oxygenation are the primary interventions.
- Bradycardia (<60 bpm) in infants is usually hypoxia-driven.
- Positive pressure ventilation is the initial priority.
- Chest compressions if bradycardia persists despite ventilation.
Memory trick: Bradycardia's breath, prevents infant's death.