Correct Answer: B

Rationale: The findings are consistent with coarctation of the aorta, where narrowing of the aorta leads to decreased blood flow to the lower extremities. This results in higher blood pressure in the arms compared to the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanisms of coarctation of the aorta, which specifically involves narrowing of the aortic lumen reducing blood flow to the lower extremities.

Correct Answer: C

Rationale: When assessing a child with acute glomerulonephritis (AGN), a common trigger to expect in the nursing history is a recent strep throat infection. AGN can be triggered by a streptococcal infection, leading to the deposition of immune complexes in the glomeruli. This finding is crucial as it helps identify a potential cause for the development of AGN in the child. Choices A, B, and D are incorrect as high blood cholesterol levels, increased thirst and urination, and recent DPT immunization are not directly associated with triggering acute glomerulonephritis in children.

Correct Answer: D

Rationale: In cases of digoxin toxicity, IV digoxin immune fab (Digibind) is the antidote and should be administered first to counteract the effects of digoxin poisoning. This intervention is crucial in managing digoxin overdose and should be initiated promptly to improve patient outcomes. Activated charcoal and gastric lavage are not effective in treating digoxin poisoning and may not be beneficial at this stage. While obtaining an electrocardiogram is important to assess cardiac function, administering the antidote should take precedence to address the immediate life-threatening effects of digoxin toxicity.

Correct Answer: A

Rationale: The correct intervention for a child with Kawasaki disease, presenting with irritability and skin peeling, is to place the child in a quiet environment. This helps reduce environmental stimuli, calming the child and aiding in managing the symptoms associated with the disease. Choice B is incorrect as addressing food preferences is not the priority in this situation. Choice C is incorrect as the focus should be on the child's immediate needs. Choice D is incorrect as applying lotion is not the first-line intervention for Kawasaki disease symptoms.

Correct Answer: B

Rationale: The correct answer is B. Infants should not be given cow's milk before 1 year of age as it can interfere with iron absorption and lead to anemia. Choice A is incorrect as avoiding sugary water is actually a good practice. Choice C is unrelated to iron-deficiency anemia. Choice D, not liking peaches or pears, is also not directly related to iron-deficiency anemia.