HESI LPN
Pediatric Practice Exam HESI
1. Why might a healthcare provider question a health care provider's order for a tap water enema for a 6-month-old infant with suspected Hirschsprung disease?
- A. The result could lead to loss of necessary nutrients.
- B. It could cause a fluid and electrolyte imbalance.
- C. It could increase the fear of intrusive procedures.
- D. The result could cause shock from a sudden drop in temperature.
Correct answer: B
Rationale: The correct answer is B. Tap water enemas can cause significant fluid and electrolyte imbalances, particularly in infants, making them unsafe for this age group. Choice A is incorrect because tap water enemas are unlikely to lead to loss of necessary nutrients. Choice C is incorrect as it does not directly relate to the physiological risk of tap water enemas. Choice D is incorrect as shock from a sudden drop in temperature is not a common concern with tap water enemas.
2. A child is brought to the clinic after tripping over a rock. The child states, 'I twisted my ankle,' and is given a diagnosis of a sprain. What intervention is most important for the nurse to include in the discharge instructions for this child?
- A. For the first 24 hours, apply ice for 20 minutes and remove for 60 minutes.
- B. Bed rest with the leg elevated for 36 hours.
- C. May take an NSAID for pain as prescribed.
- D. Use a compression dressing for 72 hours.
Correct answer: A
Rationale: The correct answer is A. Applying ice in intervals helps to reduce swelling and pain in the first 24 hours after a sprain. This intervention is crucial in the initial management of a sprain to decrease inflammation and provide pain relief. Bed rest with the leg elevated for 36 hours (Choice B) is not recommended as prolonged immobilization can lead to stiffness and decreased range of motion. Allowing the child to take an NSAID for pain as prescribed (Choice C) is a supportive measure but not as essential as ice application in the acute phase. Using a compression dressing for 72 hours (Choice D) may assist in reducing swelling, but it is not as critical as the immediate application of ice to manage pain and inflammation effectively.
3. What is the priority nursing intervention for a child admitted to the hospital with a diagnosis of acute glomerulonephritis?
- A. Monitoring for hypertension
- B. Providing pain relief
- C. Restricting fluid intake
- D. Encouraging fluid intake
Correct answer: A
Rationale: The priority nursing intervention for a child with acute glomerulonephritis is monitoring for hypertension. Acute glomerulonephritis involves inflammation of the kidney's glomeruli, leading to impaired kidney function. Hypertension is a common complication due to fluid retention and increased renin-angiotensin system activity. Monitoring for hypertension is crucial for early detection and management to prevent further kidney damage and complications. Providing pain relief (Choice B) may be required for discomfort but is not the priority. Restricting fluid intake (Choice C) may be necessary in some kidney diseases, but in acute glomerulonephritis, the focus is on monitoring and managing hypertension. Encouraging fluid intake (Choice D) is inappropriate as it can exacerbate fluid overload and hypertension in acute glomerulonephritis.
4. 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.
5. A child with sickle cell anemia is admitted to the hospital during a vaso-occlusive crisis. What is the most important intervention for the nurse to implement?
- A. Administering oxygen
- B. Ensuring adequate hydration
- C. Monitoring vital signs
- D. Administering pain medication
Correct answer: B
Rationale: During a vaso-occlusive crisis in sickle cell anemia, ensuring adequate hydration is crucial because it helps to reduce the viscosity of the blood and prevent further sickling of the cells. Administering oxygen may be necessary in some cases to improve tissue oxygenation, but hydration is the priority to prevent complications. Monitoring vital signs is important, but hydration takes precedence during a vaso-occlusive crisis. Administering pain medication is important for pain management but does not address the underlying issue of vaso-occlusion.
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