Correct Answer: A

Rationale: In this scenario, the patient is experiencing airway compromise due to the fall and potential oropharyngeal obstruction from bleeding. Performing a jaw-thrust maneuver with head stabilization helps maintain the airway patency. The next step should be to suction the oropharynx to clear any blood or secretions, which can obstruct the airway and lead to aspiration. Inserting a nasopharyngeal airway may worsen bleeding or cause further injury to the patient's airway. Initiating positive pressure ventilations can be ineffective if the airway is not cleared first. Administering oxygen via mask is not the immediate priority; ensuring a patent airway by suctioning takes precedence.

Correct Answer: A

Rationale: The American Academy of Pediatrics recommends the intramuscular polio vaccine because it has a better safety profile compared to the oral vaccine. Choice B is incorrect because the AAP specifically recommends the intramuscular vaccine over the oral vaccine. Choice C is incorrect as cost is not the primary reason for preferring the intramuscular vaccine. Choice D is incorrect as the recommendation is based on safety rather than the immunocompromised status of the infant or family members.

Correct Answer: D

Rationale: The most crucial factor in successful toilet training is the parents' commitment to consistently work with their child. While parents' attitude and willingness are important, the key is their dedication to the process. The child's motivation and ability are also significant but rely heavily on parental guidance and support. Therefore, the correct choice is the parents' commitment to work on toilet training.

Correct Answer: D

Rationale: The correct answer is D. Novolin N insulin peaks in the evening, which can lead to hypoglycemia during the night. Providing an evening snack helps to counteract the late insulin activity and prevent hypoglycemia. Choice A is incorrect because the primary reason for the evening snack is not to encourage adherence to the diet. Choice B is incorrect as the snack is not primarily for immediate energy use. Choice C is incorrect as the goal of the snack is not to help the child gain weight but to manage blood sugar levels.

Correct Answer: D

Rationale: Correct answer: When feeding a newborn with choanal atresia, the nurse should anticipate that the infant may take only part of the feeding. This behavior is due to the condition causing difficulty in breathing through the nose while feeding, prompting the infant to pause for air. Choice A, 'Chokes on the feeding,' is incorrect as it does not specifically relate to the feeding behavior expected in choanal atresia. Choice B, 'Has difficulty swallowing,' is also incorrect because the issue in choanal atresia is primarily related to breathing rather than swallowing. Choice C, 'Does not appear to be hungry,' is not the typical behavior seen in infants with choanal atresia; they may still display hunger cues but struggle with feeding due to the condition.