Correct Answer: B

Rationale: Choanal atresia is a congenital condition that presents with a blockage in the nasal passages at the junction of the nasal cavity and the nasopharynx. To assess and confirm the diagnosis of choanal atresia, the nurse should focus on assessing the nasopharynx. Choices A, C, and D are incorrect as choanal atresia specifically involves a blockage in the nasal passages, not the rectum, intestinal tract, or laryngopharynx. By assessing the nasopharynx, the severity of the obstruction can be determined, aiding in planning appropriate interventions for the newborn.

Correct Answer: B

Rationale: The priority nursing intervention for a child with acute lymphoblastic leukemia (ALL) is preventing infection due to their compromised immune system. Children undergoing treatment for ALL are highly susceptible to infections, making infection prevention crucial for the child's well-being and treatment success. Administering antibiotics, though important in specific cases, is not the priority in this scenario. Providing nutritional support and managing pain are significant aspects of care but take a back seat to infection prevention in this situation.

Correct Answer: A

Rationale: The correct answer is A, Sterility. Mumps can lead to sterility, particularly in adolescent males, highlighting the significance of vaccination to prevent this serious complication. While hypopituitarism (choice B) can be a potential complication of mumps, it is not as crucial to prevent in adolescents compared to the risk of sterility. Choices C and D, Decreased libido and Decreased androgens, are not direct complications of mumps and are not the primary concerns for adolescents in relation to mumps prevention.

Correct Answer: B

Rationale: The priority nursing intervention in a 4-year-old child admitted with bacterial pneumonia is administering antibiotics. Antibiotics are crucial for treating the infection and preventing potential complications. Administering antipyretics (Choice A) may help reduce fever, but addressing the underlying infection with antibiotics is the priority. Monitoring fluid intake (Choice C) is important for hydration but does not take precedence over administering antibiotics. Providing nutritional support (Choice D) is essential for overall care but is not the immediate priority when managing bacterial pneumonia.

Correct Answer: B

Rationale: The correct answer is B. Setting the water heater at 130 degrees is incorrect because water heaters should be set to no higher than 120 degrees to prevent scald burns. Choice A is correct as leaving fireworks displays to professionals reduces the risk of burns. Choice C is also correct as flame-retardant sleepwear reduces the risk of burn injuries. Choice D is correct as keeping pot handles facing inward prevents accidental spills and burns.