HESI LPN
Pediatric Practice Exam HESI
1. A 3-month-old infant has been hospitalized with respiratory syncytial virus (RSV). What is the priority intervention?
- A. Administering an antiviral agent
- B. Clustering care to conserve energy
- C. Offering oral fluids to promote hydration
- D. Providing an antitussive agent when necessary
Correct answer: B
Rationale: The priority intervention for a 3-month-old infant hospitalized with respiratory syncytial virus (RSV) is clustering care to conserve energy. Infants with RSV often struggle to breathe and require rest periods to recover. Clustering care involves organizing nursing activities to allow for rest intervals, reducing the infant's energy expenditure and aiding recovery. Administering antiviral agents is not the primary intervention for RSV since it is a viral infection, and antiviral medications may not be effective against RSV. While offering oral fluids is crucial for hydration, it may not be the priority when the infant is having respiratory difficulties. Providing an antitussive agent when necessary can help with coughing but is not the priority intervention for managing RSV in this scenario.
2. What finding would lead healthcare providers to suspect Turner syndrome in a child?
- A. Webbed neck
- B. Microcephaly
- C. Gynecomastia
- D. Cognitive delay
Correct answer: A
Rationale: A webbed neck is a classic physical characteristic seen in individuals with Turner syndrome, a genetic condition that results from a missing or partially missing X chromosome in females. This distinctive feature occurs due to excess skin on the neck and is a key clinical clue for healthcare providers. Microcephaly (choice B) refers to a small head size and is not typically associated with Turner syndrome. Gynecomastia (choice C) is the enlargement of breast tissue in males and is not a common finding in Turner syndrome. Cognitive delay (choice D) involves intellectual or developmental delays and is not a specific feature of Turner syndrome.
3. A school nurse is teaching parents of school-age children about the importance of immunizations for childhood communicable diseases. What preventable disease may cause the complication of encephalitis?
- A. Varicella
- B. Scarlet fever
- C. Poliomyelitis
- D. Whooping cough
Correct answer: A
Rationale: The correct answer is Varicella (chickenpox), choice A. Varicella can lead to the complication of encephalitis, which is the inflammation of the brain. Scarlet fever (choice B) is caused by Group A Streptococcus bacteria and does not typically lead to encephalitis. Poliomyelitis (choice C) is a viral infection that affects the nervous system but does not directly cause encephalitis. Whooping cough (choice D), also known as pertussis, primarily affects the respiratory system and does not commonly result in encephalitis.
4. After surgery to correct hypertrophic pyloric stenosis (HPS) in a 3-week-old infant who had been formula-fed, which postoperative feeding order is appropriate?
- A. Thickened formula 24 hours after surgery
- B. Withholding feedings for the first 24 hours
- C. Regular formula feeding within 24 hours after surgery
- D. Additional glucose feedings as desired after the first 24 hours
Correct answer: C
Rationale: Following surgery for hypertrophic pyloric stenosis (HPS) in infants, it is appropriate to resume regular formula feeding within 24 hours postoperatively to support recovery. This helps maintain adequate nutrition and hydration for the infant. Choice A is incorrect because thickened formula may not be necessary and could potentially cause issues postoperatively. Choice B is incorrect as withholding feedings for the first 24 hours can lead to nutritional deficiencies and delay recovery. Choice D is inappropriate as additional glucose feedings are not typically indicated postoperatively for infants with HPS and may not provide the necessary nutrition needed for recovery.
5. What is an important nursing responsibility when a dysrhythmia is suspected?
- A. order an immediate electrocardiogram
- B. count the radial pulse every 1 minute for five times
- C. count the apical pulse for 1 full minute, and compare the rate with the radial pulse rate
- D. have someone else take the radial pulse simultaneously with the apical pulse
Correct answer: C
Rationale: When a dysrhythmia is suspected, an important nursing responsibility is to count the apical pulse for 1 full minute and then compare this rate with the radial pulse rate. This method helps in identifying dysrhythmias as it allows for a direct comparison of the heart's rhythm at two different pulse points. Ordering an immediate electrocardiogram (Choice A) may be necessary but should not be the first step. Counting the radial pulse multiple times (Choice B) is not as accurate as comparing rates directly. Having someone else take the radial pulse simultaneously (Choice D) may introduce errors and inconsistencies in the measurement.
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