The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarctation of the aorta that was repaired 4 days after birth. Findings include blood pressure higher in the arms than the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. What pathophysiologic mechanisms support these findings?

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: Administering the vaccine as a nasal spray provides an alternative method of delivery that avoids the use of needles, addressing the child's fear while ensuring immunization. Nasal sprays are effective for certain vaccines and can be a suitable option in this scenario. Choice A is not the best response as it only addresses pain management but does not eliminate the use of needles. Choice B is incorrect as there are alternative delivery methods like nasal sprays. Choice D is incorrect as skipping the vaccine would leave the child unprotected and is not a recommended course of action.

Correct Answer: B

Rationale: In a 3-year-old child with drooling, difficulty swallowing, high fever, and sore throat, the nurse should prioritize preparing for emergency airway management. These signs may indicate epiglottitis, a condition that can quickly obstruct the airway, leading to respiratory distress and potentially fatal outcomes if not managed promptly. Administering antipyretic medication (Choice A) may be necessary later but is not the priority. Offering ice chips (Choice C) is contraindicated as the child has difficulty swallowing. Assessing hydration status (Choice D) is important but not the priority when the airway is at risk.

Correct Answer: C

Rationale: Hypertension is a serious complication of glomerulonephritis, as it can lead to further renal damage. A blood pressure reading of 150/95 mm Hg is elevated and should be reported promptly to the healthcare provider for immediate management to prevent complications. Dark-colored urine can be a common symptom of glomerulonephritis due to blood in the urine but is not as urgent as managing hypertension. Mild periorbital edema can also be seen in glomerulonephritis but is not as concerning as elevated blood pressure. Urine output of 250 mL in 24 hours indicates oliguria, which is a concern, but addressing hypertension takes priority to prevent further renal damage.

Correct Answer: C

Rationale: The correct answer is C: 'Avoid giving any medication containing aspirin during a viral illness.' It is crucial to advise parents to avoid giving any medication containing aspirin during a viral illness to prevent Reye's syndrome. Reye's syndrome is a rare but serious condition linked to the use of aspirin during viral illnesses in children and teenagers. Choices A, B, and D are incorrect because vaccinating against Reye's syndrome is not applicable as there is no specific vaccine for it, keeping the child at home for 2 days after symptoms appear is not a preventive measure for Reye's syndrome, and avoiding citrus juices is not directly related to the prevention of Reye's syndrome.