HESI LPN
Pediatric HESI Test Bank
1. An infant who has had diarrhea for 3 days is admitted in a lethargic state and is breathing rapidly. The parent states that the baby has been ingesting formula, although not as much as usual, and cannot understand the sudden change. What explanation should the nurse give the parent?
- A. Cellular metabolism is unstable in young children.
- B. The proportion of water in the body is less than in adults.
- C. Renal function is immature in children until they reach school age.
- D. The extracellular fluid requirement per unit of body weight is greater than in adults.
Correct answer: D
Rationale: The correct answer is D. Infants have a higher extracellular fluid requirement per unit of body weight, making them more susceptible to dehydration and electrolyte imbalances during illnesses such as diarrhea. Choice A is incorrect because cellular metabolism being unstable is not the primary explanation for the symptoms described. Choice B is incorrect as the proportion of water in the body alone does not fully explain the increased risk of dehydration in infants. Choice C is incorrect because while renal function is immature in children, it is not the most relevant factor in this scenario compared to the increased fluid requirements.
2. A 7-month-old girl is to be catheterized to obtain a sterile urine specimen. One of the infant’s parents expresses fear that this procedure may traumatize the baby psychologically. How should the nurse provide reassurance?
- A. The fear is justified and the nurse should obtain a “clean catch” specimen.
- B. Parents have a right to refuse the catheterization and the concerns are realistic.
- C. Although the concern is appropriate, the need for a sterile specimen is the priority.
- D. The procedure is uncomfortable, but there should not be a damaging long-term effect.
Correct answer: D
Rationale: While catheterization can be uncomfortable, it does not typically result in long-term psychological harm, and obtaining a sterile specimen is important for accurate diagnosis.
3. A parent calls the outpatient clinic requesting information about the appropriate dose of acetaminophen for a 16-month-old child who has signs of an upper respiratory tract infection and fever. The directions on the bottle of acetaminophen elixir are 120 mg every 4 hours when needed. At the toddler’s 15-month visit, the health care provider prescribed 150 mg. What is the nurse’s best response to the parent?
- A. “The dose is close enough, and it doesn’t really matter which one is given.”
- B. “From your description, the medications are not necessary. They should be avoided at this age.”
- C. “It is appropriate to use dosages based on age. Children typically have weights consistent for their age groups.”
- D. “The prescribed dose of the drug was based on weight, and this is a more accurate way of determining a therapeutic dose.”
Correct answer: D
Rationale: The most accurate way to determine a therapeutic dose for children is based on their weight rather than age. Weight-based dosing helps ensure that the child receives the appropriate amount of medication for their body size, which is crucial for safety and effectiveness. Age-based dosing can lead to underdosing or overdosing, as children of the same age can have significantly different weights. Choice A is incorrect because even small variations in dosages can have significant effects on a child's health. Choice B is incorrect as acetaminophen can be appropriate when used correctly for fever management in children. Choice C is incorrect as children's weights can vary greatly within the same age group, making weight-based dosing more precise and individualized.
4. When assessing a child with suspected bacterial meningitis, what clinical manifestation is the nurse likely to observe?
- A. Photophobia
- B. High fever
- C. Rash
- D. Nasal congestion
Correct answer: B
Rationale: The correct answer is B: High fever. In bacterial meningitis, a high fever is a common clinical manifestation due to the body's inflammatory response to the infection. While photophobia (choice A) is also a common symptom in meningitis, it is not as specific as a high fever. Rash (choice C) is more commonly associated with viral infections or other conditions, rather than bacterial meningitis. Nasal congestion (choice D) is not a typical clinical manifestation of bacterial meningitis and is more commonly seen in respiratory infections. Therefore, when assessing a child with suspected bacterial meningitis, the nurse is most likely to observe a high fever as a key clinical manifestation.
5. A young child has coarctation of the aorta. What does the nurse expect to identify when taking the child’s vital signs?
- A. A weak radial pulse
- B. An irregular heartbeat
- C. A bounding femoral pulse
- D. An elevated radial blood pressure
Correct answer: A
Rationale: In coarctation of the aorta, there is narrowing of the aorta leading to decreased blood flow distal to the constriction. This results in a weak or delayed femoral pulse and a relatively weaker radial pulse compared to the femoral pulse. An irregular heartbeat (choice B) is not a typical finding in coarctation of the aorta. A bounding femoral pulse (choice C) would not be expected due to the decreased blood flow beyond the constriction. An elevated radial blood pressure (choice D) is not a common characteristic of coarctation of the aorta; instead, blood pressure may be higher in the upper extremities compared to the lower extremities due to the constriction.
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