HESI LPN
Pediatric HESI 2023
1. A 2-week-old infant is admitted with a tentative diagnosis of a ventricular septal defect. The parents report that their baby has had difficulty feeding since coming home after birth. What should the nurse consider before responding?
- A. Feeding problems are common in neonates.
- B. Inadequate sucking is not significant in the absence of cyanosis.
- C. Ineffective sucking and swallowing may be early indications of a heart defect.
- D. Many neonates retain mucus, which may interfere with feeding for several weeks.
Correct answer: C
Rationale: In this scenario, the nurse should consider that ineffective sucking and swallowing in a 2-week-old infant could be early signs of a heart defect such as a ventricular septal defect. This is crucial information as it can guide further assessment and management. Choice A is incorrect because while feeding problems can be common in neonates, in this case, the specific context of a suspected heart defect should be prioritized. Choice B is incorrect as inadequate sucking can indeed be significant, especially when considering potential underlying heart issues, regardless of the presence of cyanosis. Choice D is incorrect as while mucus retention can affect feeding, in this case, the focus should be on the possibility of a heart defect rather than a temporary issue like mucus interference.
2. 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: After surgery for hypertrophic pyloric stenosis (HPS), it is appropriate to resume regular formula feeding within 24 hours postoperatively to promote recovery. Choice A, thickened formula after surgery, may be too heavy for the infant's digestive system at this early stage. Withholding feedings for the first 24 hours (Choice B) is not recommended as early feeding helps with recovery. Additional glucose feedings (Choice D) are not necessary and may not provide the balanced nutrition required after surgery.
3. During the health assessment of a school-age child, on which problem would the nurse focus more attention based on the child's developmental level?
- A. Infections
- B. Poisonings
- C. Risk-taking behaviors
- D. Accidents and injuries
Correct answer: D
Rationale: During the school-age years, children are more physically active and curious, which increases their risk of accidents and injuries. This developmental stage is characterized by increased exploration and engagement in physical activities. While infections and poisonings are important health concerns, school-age children are more likely to be affected by accidents and injuries due to their active nature. Risk-taking behaviors may become more prevalent in adolescence rather than during the school-age period, making it a less likely focus for the nurse during the health assessment of a school-age child.
4. After a discussion with the health care provider, the parents of an infant with patent ductus arteriosus (PDA) ask the nurse to explain once again what PDA is. How should the nurse respond?
- A. The diameter of the aorta is enlarged.
- B. The wall between the right and left ventricles is open.
- C. It is a narrowing of the entrance to the pulmonary artery.
- D. It is a connection between the pulmonary artery and the aorta.
Correct answer: D
Rationale: The correct answer is D: 'It is a connection between the pulmonary artery and the aorta.' Patent ductus arteriosus (PDA) is an abnormal connection between the pulmonary artery and the aorta, which normally closes after birth. Choices A, B, and C describe different cardiac conditions and do not accurately define PDA. Choice A is incorrect because PDA does not involve the diameter of the aorta being enlarged. Choice B is incorrect because PDA does not involve the wall between the right and left ventricles being open. Choice C is incorrect because PDA is not a narrowing of the entrance to the pulmonary artery.
5. A 3-year-old child with a history of frequent respiratory infections is being evaluated for cystic fibrosis. What diagnostic test should the nurse anticipate will be ordered?
- A. Chest X-ray
- B. Sweat chloride test
- C. Pulmonary function test
- D. Sputum culture
Correct answer: B
Rationale: The sweat chloride test is the gold standard diagnostic test for cystic fibrosis as it measures the concentration of chloride in sweat. In cystic fibrosis, there is an abnormal transport of chloride across epithelial membranes, leading to elevated sweat chloride levels. A chest X-ray may show characteristic changes in the lungs associated with cystic fibrosis, but it is not a definitive diagnostic test. Pulmonary function tests assess lung function but do not specifically diagnose cystic fibrosis. Sputum culture may identify respiratory infections but does not confirm the diagnosis of cystic fibrosis.
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