A full-term, 24-hour-old infant in the nursery regurgitates and suddenly turns cyanotic. Which immediate intervention should the practical nurse (PN) implement?

The correct answer is choice C. Suction the oral and nasal passages. Choice A rationale: Turning the infant onto the right side may not be the most appropriate intervention for cyanosis caused by regurgitation. Cyanosis signifies a lack of oxygen, and simply changing the infant's position might not address the underlying issue. Choice B rationale: Giving oxygen by positive pressure is not the immediate intervention needed for regurgitation-induced cyanosis. While administering oxygen is important, the first step should involve clearing the airway to ensure proper oxygenation. Choice C rationale: Suctioning the oral and nasal passages is crucial in this situation as the cyanosis is likely due to the infant's airway being obstructed by regurgitated material. Clearing the airway can restore normal breathing and oxygenation. Choice D rationale: Stimulating the infant to cry is not the appropriate action when cyanosis is present. Cyanosis indicates a serious problem with oxygenation, and crying may worsen the situation by further compromising the infant's breathing.