How does neonatal cardiac arrest differ from older pediatric arrest in terms of etiology and priorities?

• A. Neonatal arrest is usually due to perinatal asphyxia and respiratory failure; emphasis on rapid ventilation and chest compressions; follow NRP guidelines, with age-specific dosing and sequences
• B. Neonatal arrest and pediatric arrest share identical etiologies
• C. Neonatal arrest occurs only from congenital heart disease
• D. In older children, asphyxia is the only cause

Answer: (A)

Neonatal arrest is driven largely by hypoxia from perinatal asphyxia and respiratory failure, so the first priority is to restore oxygen delivery through rapid ventilation and airway support. The best choice reflects this by noting the common perinatal-asphyxia/respiratory failure etiology and emphasizing ventilation first, with chest compressions added only when the heart rate remains critically low, following the neonatal resuscitation program sequence and age-specific dosing. This neonatal approach hinges on physiology distinct from older children: resuscitation is tailored to neonates with a ventilation-dominant initial strategy (often a 3:1 compression-to-ventilation ratio, airway management, and specific medication dosing per NRP). In contrast, arrests in older children arise from a broader range of etiologies and are managed under pediatric guidelines that use different sequencing and ratios. The other statements don’t fit because neonatal arrest is not limited to congenital heart disease, and older children are not restricted to asphyxia as the sole cause.