Correct Answer: A

Rationale: Applying an anesthetic cream to the insertion site 1 hr before the procedure is crucial when inserting an intravenous catheter in a child to minimize pain and discomfort during the procedure. This practice is especially important in pediatric patients to ensure a more comfortable experience and improve cooperation during the insertion process.

Correct Answer: D

Rationale: When caring for an infant with respiratory syncytial virus (RSV), maintaining a patent airway is crucial. Suctioning the nasopharynx as needed helps clear secretions, prevent airway obstruction, and promote effective breathing. This intervention can aid in improving the infant's respiratory status and overall comfort.

Correct Answer: A

Rationale: Low-grade fever, malaise, and muscle aches are common reactions. Acetaminophen usually alleviates these problems. MMR is a live vaccine but it is attenuated or completely avirulent and does not cause measles in healthy children, only immunocompromised children.

Correct Answer: C

Rationale: Level IV nurseries are equipped to provide the highest level of care, including complex surgical interventions for serious congenital or acquired malformations. These nurseries have the necessary resources and expertise to manage critical cases effectively.

Correct Answer: B

Rationale: Feeding a baby in a more upright position and no longer in sidelying is important around 4-6 months of age. At this stage, babies start developing better head and trunk control, which allows them to sit in a more upright position for feeding, promoting safer and more efficient swallowing and digestion.