Correct Answer: D

Rationale: Closure of the cleft palate is recommended before the age of 2 to prevent the development of faulty speech patterns. Performing surgery at a younger age helps avoid speech difficulties that may arise if the repair is delayed. Choice A is incorrect as it focuses on fear, not the developmental aspect. Choice B is incorrect as the eruption of molars is not the primary reason for early surgery. Choice C is incorrect because the difficulty of repair is not solely related to the width of the palate but also to speech development.

Correct Answer: D

Rationale: The correct answer is D. Novolin N insulin peaks in the evening, leading to a higher risk of hypoglycemia during this time. Providing a snack before bedtime helps counteract the late insulin activity and prevent hypoglycemia. Choice A is incorrect as the primary reason for the snack is related to insulin activity rather than diet compliance. Choice B is not directly related to the timing of Novolin N insulin administration. Choice C is unrelated to the specific need for a snack in the evening to address insulin activity.

Correct Answer: C

Rationale: Abnormal heart sounds could indicate a congenital heart defect, which is common in infants with Down syndrome.

Correct Answer: B

Rationale: The correct answer is B. Live vaccines like MMR should not be given to immunosuppressed infants because their weakened immune systems may not handle the vaccine safely. Choice A is incorrect as delaying the MMR vaccine until the infant reaches 2 years of age does not address the issue of immunosuppression. Choice C is incorrect because administering live vaccines to an immunosuppressed individual could lead to serious complications. Choice D is incorrect as immediate action is required to prevent potential harm to the immunosuppressed infant.

Correct Answer: C

Rationale: In a pediatric patient with an unconscious state, a respiratory rate of 8 breaths/min, and a heart rate of 50 beats/min, the appropriate management involves chest compressions, artificial ventilations, and rapid transport. These signs indicate severe respiratory and circulatory compromise, requiring immediate intervention to support breathing and circulation. Choice A (100% oxygen via a non-rebreathing mask) is not sufficient in this critical situation as the child requires more than just oxygen supplementation. Choice B (positive pressure ventilations with a BVM device) may be needed, but chest compressions are crucial in this scenario due to the presence of bradycardia. Choice D (back blows and chest thrusts) are not indicated for an unconscious child with respiratory and circulatory compromise; instead, immediate chest compressions are necessary to provide circulatory support.