HESI RN
HESI Practice Test Pediatrics
1. The practical nurse is reinforcing information about Lyme disease prevention with a client who is preparing for a camping trip with family. Which statement by the client informs the nurse that the client understands the instruction?
- A. I'll make sure my son wears dark clothing on his hike.
- B. I'll get a prescription for amoxicillin to take with us.
- C. We should all get the Lyme disease vaccine before our trip.
- D. We will wear long pants and long-sleeved shirts in the woods.
Correct answer: D
Rationale: The correct answer is D. Wearing long pants and long-sleeved shirts is an effective preventive measure against tick bites, which reduces the risk of contracting Lyme disease. This attire helps to minimize skin exposure to ticks, thereby decreasing the chances of a tick attaching and transmitting the disease-causing bacteria.
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. The healthcare provider is evaluating the effects of thyroid therapy used to treat a 5-month-old with hypothyroidism. Which behavior indicates that the treatment has been effective?
- A. Laughs readily, turns from back to side.
- B. Has strong Moro and tonic neck reflexes.
- C. Keeps fists clenched, opens hands when grasping an object.
- D. Can lift head, but not chest when lying on abdomen.
Correct answer: A
Rationale: In infants, laughing readily and turning from back to side are indicative of normal development. These behaviors indicate that the thyroid therapy is effective, as they suggest the baby is achieving age-appropriate milestones. A 5-month-old infant should be able to laugh readily and turn from back to side, showing progress in motor and social development. Choices B, C, and D describe behaviors that are not specific to the expected developmental milestones of a 5-month-old. Strong Moro and tonic neck reflexes, clenched fists, and limited ability to lift the chest when lying on the abdomen are not necessarily indicative of the effectiveness of thyroid therapy for hypothyroidism.
4. The practical nurse is caring for a child who has just returned from surgery for an appendectomy. Which intervention should the nurse implement?
- A. Encourage early ambulation.
- B. Apply warm compresses to the incision site.
- C. Monitor for signs of infection at the surgical site.
- D. Provide a high-fiber diet immediately post-op.
Correct answer: C
Rationale: Monitoring for signs of infection at the surgical site is crucial after an appendectomy as it helps in early detection and treatment of any potential complications. This intervention is essential for ensuring the child's proper healing and recovery post-surgery. Encouraging early ambulation is generally beneficial post-operatively but may not be the priority immediately after an appendectomy. Applying warm compresses to the incision site may not be indicated as it can increase the risk of infection. Providing a high-fiber diet immediately post-op is not recommended as the digestive system needs time to recover from surgery.
5. When should a mother introduce solid foods to her 4-month-old infant? The mother states that her mother suggests putting rice cereal in the baby's bottle. The nurse should instruct the mother to introduce solid foods when her child exhibits which behavior?
- A. Stops rooting when hungry
- B. Opens mouth when food is offered
- C. Awakens once for nighttime feedings
- D. Gives up a bottle for a cup
Correct answer: B
Rationale: Introducing solid foods when the child opens their mouth for food is important to ensure readiness for solids. This behavior indicates the infant's interest and readiness for new textures and flavors, promoting safe and successful introduction to solid foods. The other choices are not indicative of the infant's readiness for solid foods: A - stopping rooting is a reflex action, C - awakening for nighttime feedings is a normal behavior, and D - transitioning from a bottle to a cup is a developmental milestone unrelated to solid food introduction.
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