Correct Answer: B

Rationale: The correct approach to prevent cardiac arrest in infants and small children is to ensure adequate ventilation. In these cases, maintaining proper oxygenation and ventilation is crucial for sustaining life. Providing immediate transport, keeping the child warm, or avoiding upsetting the child are important considerations but ensuring adequate ventilation takes precedence in preventing cardiac arrest and supporting the child's vital functions.

Correct Answer: B

Rationale: When the work of breathing increases after elevating the legs, it is important to lower the extremities. Elevating the lower extremities in a child with signs of shock can worsen the condition by reducing venous return to the heart. Lowering the extremities can help improve venous return and potentially alleviate the increased work of breathing.

Correct Answer: D

Rationale: In cases where child abuse is suspected, the priority is the safety and well-being of the child. Advising the parents that the child needs to be transported for further evaluation and care is the appropriate initial step. This ensures that the child receives necessary medical attention while also addressing the suspicion of abuse through proper channels. It is essential to involve appropriate authorities and follow established procedures to protect the child and investigate any potential abuse further.

Correct Answer: C

Rationale: When a child ingests a harmful substance like drain cleaner and remains alert with a patent airway and adequate breathing, the initial steps involve contacting poison control to guide further management. In this scenario, providing oxygen to support respiratory function is essential until definitive care is established. Activated charcoal and ipecac are not recommended in the management of ingested caustic substances like drain cleaner. Performing a head-to-toe exam can wait until the child's immediate respiratory needs are addressed and the poison control center has provided guidance on further management.

Correct Answer: B

Rationale: In this scenario, the appropriate action is to keep the newborn warm, ensure the mother receives oxygen if needed, and prepare for transport. The newborn is showing signs of central cyanosis (hands and feet being cyanotic), which can be due to various reasons, including inadequate oxygenation. Therefore, ensuring warmth and possible oxygen to the mother are important. Additionally, monitoring both the mother and baby during transport is crucial for their well-being.