Correct Answer: C

Rationale: Administering antibiotics is a crucial nursing intervention after a tonsillectomy because it helps prevent infections, which are a common postoperative complication. Encouraging deep breathing exercises (Choice A) is also important for promoting lung expansion and preventing respiratory complications. Encouraging the child to eat (Choice B) may not be appropriate immediately after a tonsillectomy due to the risk of throat irritation and discomfort. Applying ice to the throat (Choice D) is generally not recommended post-tonsillectomy as it may cause vasoconstriction and hinder the healing process.

Correct Answer: C

Rationale: The correct answer is to measure the dose with a proper measuring device. Using a household spoon can lead to inaccurate dosing, which can be dangerous. Administering the medication with food or only when the child has a high fever are not the essential instructions related to the safe and effective administration of acetaminophen.

Correct Answer: B

Rationale: The priority nursing intervention for a 5-year-old child admitted to the hospital with bacterial meningitis is to isolate the child. Isolating the child is crucial to prevent the spread of infection to others, as bacterial meningitis is highly contagious. Administering antibiotics (Choice A) is important in the treatment of bacterial meningitis, but isolating the child takes precedence to protect others. Monitoring vital signs (Choice C) and administering fluids (Choice D) are essential aspects of care for a child with meningitis but are not the priority intervention to prevent the spread of the infection.

Correct Answer: A

Rationale: The primary goal of therapy during the acute phase of Kawasaki disease is to prevent coronary artery aneurysms. Kawasaki disease is characterized by systemic vasculitis and the most serious complication is the development of coronary artery aneurysms. While reducing fever and improving cardiac function are important aspects of managing Kawasaki disease, the primary focus in the acute phase is to prevent the development of coronary artery aneurysms. Preventing dehydration is also essential but not the primary goal in managing Kawasaki disease.

Correct Answer: B

Rationale: The correct answer is B. Urticaria is a type I hypersensitivity reaction where histamine release leads to vasodilation and the formation of characteristic wheals. Choice A is incorrect as urticaria is associated with type I hypersensitivity, not type IV. Choice C is incorrect because in urticaria, erythema typically appears before the development of wheals. Choice D is incorrect as urticaria is typically pruritic and does not blanch with pressure.