HESI RN
HESI Pediatrics Practice Exam
1. A child with pertussis is receiving azithromycin (Zithromax Injection) IV. Which intervention is most important for the nurse to include in the child's plan of care?
- A. Obtain vital signs to monitor for fluid overload
- B. Change IV site dressing every 3 days and as needed
- C. Monitor for signs of facial swelling or urticaria
- D. Assess for abdominal pain and vomiting
Correct answer: C
Rationale: When administering azithromycin IV, monitoring for signs of an allergic reaction, such as facial swelling or urticaria, is crucial. This helps in early detection of potential adverse reactions and ensures prompt intervention to prevent complications associated with the medication. The other options are not directly related to the administration of azithromycin IV in this scenario. Monitoring for fluid overload would be more relevant for fluid administration, changing IV site dressing is important but not the priority in this case, and assessing for abdominal pain and vomiting may be important but not as critical as monitoring for signs of an allergic reaction.
2. What should the nurse do first for a 6-year-old with asthma showing a prolonged expiratory phase, wheezing, and 35% of personal best peak expiratory flow rate (PEFR)?
- A. Administer a prescribed bronchodilator.
- B. Encourage the child to cough and take deep breaths.
- C. Report the findings to the healthcare provider.
- D. Identify the triggers that precipitated this attack.
Correct answer: A
Rationale: Administering a bronchodilator is the priority action in managing an acute asthma exacerbation in a child. Bronchodilators help to relax the muscles around the airways, opening them up and improving breathing. This intervention aims to address the immediate breathing difficulty and should be done promptly to provide relief for the child. Encouraging coughing and deep breaths (choice B) may worsen the child's condition by further constricting the airways. Reporting findings to the healthcare provider (choice C) is important but not the immediate priority in this acute situation. Identifying triggers (choice D) is crucial for long-term asthma management but is not the first step when managing an acute exacerbation.
3. 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.
4. Which developmental behavior should the practical nurse identify as normal for a 6-month-old infant?
- A. Rolls over completely.
- B. Creeps on all fours.
- C. Pulls self to a standing position.
- D. Assumes a sitting position independently.
Correct answer: A
Rationale: The correct answer is A: 'Rolls over completely.' By 6 months of age, infants typically achieve the milestone of rolling over completely. This ability demonstrates increasing strength and coordination. Creeping on all fours, pulling self to a standing position, and assuming a sitting position independently are skills that are usually developed at later stages of infancy. Creeping usually occurs around 9-10 months, pulling self to a standing position around 9-12 months, and assuming a sitting position independently around 8 months. Therefore, at 6 months, rolling over completely is the most expected developmental behavior.
5. The practical nurse (PN) is caring for an adolescent who has been diagnosed with mononucleosis. Which activity should the PN advise the adolescent to avoid?
- A. Playing video games.
- B. Drinking caffeinated beverages.
- C. Participating in contact sports.
- D. Eating spicy foods.
Correct answer: C
Rationale: Contact sports should be avoided in mononucleosis due to the risk of spleen rupture, which is a serious complication of the disease. The spleen can enlarge in mononucleosis, making it more susceptible to injury from contact sports, potentially leading to a life-threatening situation if rupture occurs.
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