a 3 year old child with a history of frequent respiratory infections is being evaluated for cystic fibrosis what diagnostic test should the nurse anti
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Nursing Elites

HESI LPN

Pediatric HESI 2024

1. 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?

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.

2. A 15-month-old child with the diagnosis of hydrocephalus is scheduled for a computed tomography (CT) scan. What should the nurse include when preparing the toddler for the CT scan?

Correct answer: D

Rationale: Preparing a toddler for a CT scan involves providing a simple explanation of the procedure to reduce anxiety and help the child understand what will happen. This approach helps establish trust and cooperation, making the experience less frightening for the child. Shaving the head, starting an IV infusion, or administering a sedative are not typically part of the preparation for a CT scan in a toddler and may not be necessary or appropriate in this scenario.

3. A healthcare professional is educating a group of parents on preventing childhood obesity. What should the professional recommend?

Correct answer: B

Rationale: The correct answer is to limit screen time when preventing childhood obesity. Excessive screen time is associated with a sedentary lifestyle and can lead to increased consumption of unhealthy foods. Encouraging high-calorie snacks (choice A) contradicts the goal of preventing obesity. While fast food as an occasional treat (choice C) can be acceptable in moderation, it should not be encouraged as a preventive measure against obesity. Allowing the child to eat freely (choice D) without guidance can lead to overconsumption of unhealthy foods and contribute to obesity risk.

4. What behavior does the nurse anticipate when feeding a newborn with choanal atresia?

Correct answer: D

Rationale: When feeding a newborn with choanal atresia, the nurse can anticipate that the infant may take only part of the feeding before pausing for air. This is due to the fact that infants with choanal atresia struggle to breathe through their nose while feeding. Choice A is incorrect as choking typically involves a more severe airway obstruction. Choice B is incorrect because difficulty swallowing is not the primary concern in choanal atresia. Choice C is incorrect as the issue is not related to hunger cues but rather the physiological challenges associated with breathing while feeding.

5. When explaining exercise in type 1 diabetes to the parents of a newly diagnosed child, what should the nurse emphasize?

Correct answer: C

Rationale: In children with type 1 diabetes, it is essential to emphasize the need for extra snacks before exercise to prevent hypoglycemia. Choice A is incorrect because exercise typically lowers blood glucose levels, not increases them. Choice B is inappropriate as exercise is beneficial but needs to be managed carefully. Choice D is inaccurate as extra insulin during exercise can lead to hypoglycemia.

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