Nursing Elites

1. 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?

• A. The aortic semilunar valve obstructs blood flow into the systemic circulation
• B. The lumen of the aorta reduces the volume of the blood flow to the lower extremities
• C. The pulmonic valve prevents adequate blood volume into the pulmonary circulation
• D. An opening in the atrial septum causes a murmur due to a turbulent left to right shunt

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.

2. A 4-year-old child with a history of frequent ear infections is brought to the clinic by the parents who are concerned about the child’s hearing. What is the nurse’s priority action?

• A. Perform a hearing test
• B. Inspect the child’s ears for drainage
• C. Refer the child to an audiologist
• D. Ask the parents about the child’s speech development

Correct answer: B

Rationale: The nurse's priority action should be to inspect the child's ears for drainage. This immediate assessment can provide valuable information about the presence of infection or fluid accumulation, which can directly impact the child's hearing. By identifying any signs of drainage, the nurse can promptly address any current issues affecting the child's ear health and hearing abilities. Performing a hearing test (Choice A) may be necessary but should follow the initial assessment of the ears. Referring the child to an audiologist (Choice C) can be considered later based on the findings. Asking about speech development (Choice D) is important but not the immediate priority compared to assessing for current ear issues.

3. The caregiver discovers a 6-month-old infant unresponsive and calls for help. After opening the airway and finding the infant is still not breathing, what action should the caregiver take?

• A. Palpate femoral pulse and check for regularity.
• B. Deliver cycles of 30 chest compressions and 2 breaths.
• C. Give two breaths that make the chest rise.
• D. Feel the carotid pulse and check for adequate breathing.

Correct answer: C

Rationale: Providing two breaths that make the chest rise is the correct action in this situation. This helps to deliver oxygen to the infant's lungs and body, which is crucial in a situation where the infant is not breathing. Chest rise indicates successful ventilation, and it is an essential step in pediatric resuscitation, especially for infants. Choices A, B, and D are incorrect because palpating the femoral pulse, delivering chest compressions, and feeling the carotid pulse are not the initial actions to take when an infant is not breathing. The priority is to provide effective breaths to establish ventilation.

4. A 5-year-old child with leukemia is receiving chemotherapy. The nurse notes that the child’s white blood cell count is low. What is the nurse’s priority intervention?

• A. Administer antibiotics as prescribed
• B. Place the child in protective isolation
• C. Encourage the child to eat a balanced diet
• D. Teach the parents about infection prevention

Correct answer: B

Rationale: The priority intervention for a 5-year-old child with leukemia receiving chemotherapy and having a low white blood cell count is to place the child in protective isolation. This intervention helps reduce the risk of infection, which is crucial in this immunocompromised state. Protective isolation aims to limit the child's exposure to pathogens and promote their safety during a period of increased vulnerability to infections.

5. What suggestion should the nurse provide to prevent diaper rash in a 4-month-old infant as requested by the mother?

• A. Generously powder the baby's diaper area with talcum powder at each diaper change to promote dryness.
• B. Wash the diaper area every 2 hours with soap and water to help prevent skin breakdown.
• C. Use a barrier cream, such as zinc oxide, which does not have to be completely removed with each diaper change.
• D. Place a cloth diaper inside the disposable diaper for overnight periods when increased wearing time is likely.

Correct answer: C

Rationale: Using a barrier cream like zinc oxide forms a protective layer on the skin, creating a barrier against irritants and moisture, thus helping to prevent diaper rash. Unlike other options, barrier creams do not need to be completely removed at each diaper change, allowing the skin to remain protected between changes.

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