HESI RN
HESI Practice Test Pediatrics
1. A 7-year-old child with sickle cell anemia presents to the emergency department with severe pain in the arms and legs. What is the nurse’s priority action?
- A. Administer prescribed pain medication
- B. Apply warm compresses to the affected areas
- C. Encourage the child to drink fluids
- D. Monitor the child’s oxygen saturation
Correct answer: A
Rationale: In a sickle cell crisis, pain management is a priority due to the severe pain experienced by the child. Administering prescribed pain medication is crucial to alleviate the pain and provide comfort to the child. Once pain is controlled, other comfort measures like applying warm compresses and encouraging fluid intake can be implemented. Monitoring oxygen saturation is important but not the priority action when dealing with severe pain in a sickle cell crisis.
2. The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarction 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 correct answer is B. Coarctation of the aorta causes narrowing of the aorta, reducing blood flow to the lower extremities. This narrowing results in higher blood pressure in the arms compared to the lower extremities, along with stronger brachial pulses and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanism of coarctation of the aorta, which specifically leads to reduced blood flow to the lower extremities.
3. When caring for a child with Kawasaki disease, which symptom is the most significant for making this diagnosis?
- A. Desquamation of the palms and soles.
- B. Cervical lymphadenopathy.
- C. Erythema of the hands and feet.
- D. Strawberry tongue.
Correct answer: C
Rationale: Erythema of the hands and feet is a key diagnostic criterion for Kawasaki disease. This, along with other symptoms like fever and strawberry tongue, helps in making the diagnosis. While desquamation of the palms and soles, cervical lymphadenopathy, and strawberry tongue are associated with Kawasaki disease, the presence of erythema of the hands and feet is particularly significant in diagnosing this condition.
4. A 10-year-old child is admitted with diabetic ketoacidosis (DKA). Which laboratory value should the practical nurse (PN) anticipate?
- A. Elevated blood glucose.
- B. Decreased serum ketones.
- C. Low urine glucose.
- D. High bicarbonate levels.
Correct answer: A
Rationale: In a case of diabetic ketoacidosis (DKA), the primary feature is elevated blood glucose levels due to insulin deficiency. Additionally, ketones are increased in the blood and urine. Bicarbonate levels are usually low because of the metabolic acidosis that accompanies DKA. Therefore, the practical nurse should anticipate elevated blood glucose levels as a characteristic laboratory finding in a child admitted with DKA. Choice B is incorrect because serum ketones are increased in DKA. Choice C is incorrect because in DKA, urine glucose is typically high due to spillage of glucose into the urine. Choice D is incorrect because bicarbonate levels are usually low in DKA, not high.
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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