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 major developmental milestone of a toddler is the achievement of autonomy. What should the parents do to enhance their toddler’s need for autonomy?
- A. Teach the child to share with others.
- B. Help the child learn society’s roles.
- C. Teach the child to accept external limits.
- D. Help the child develop internal controls.
Correct answer: D
Rationale: Toddlers striving for autonomy need to develop internal controls to foster their independence. Teaching the child to share (Choice A) focuses more on social skills rather than autonomy. Helping the child learn society’s roles (Choice B) is important but not directly related to enhancing autonomy. Teaching the child to accept external limits (Choice C) is contrary to promoting autonomy as it emphasizes conformity to external rules rather than internal self-regulation.
3. During a vaccination drive at a well-child clinic, a nurse observes that a recently hired nurse is not wearing gloves. What should the nurse advise the newly hired nurse to do?
- A. Speak with the nurse manager regarding techniques.
- B. Put on gloves because standard precautions are required.
- C. Continue with the immunizations because gloves are not needed.
- D. Evaluate the child’s appearance to determine whether gloves are needed.
Correct answer: B
Rationale: The correct answer is B: Put on gloves because standard precautions are required. Standard precautions, which include wearing gloves, are crucial in preventing the transmission of infections during immunization. Choice A is incorrect because the immediate action should be to address the lack of gloves. Choice C is incorrect as gloves are necessary for infection control. Choice D is incorrect as gloves should be worn as a standard preventive measure, regardless of the child's appearance.
4. A nurse is developing a teaching plan for an 8-year-old child who has recently been diagnosed with type 1 diabetes. What developmental characteristic of a child this age should the nurse consider?
- A. Child is in the concrete operational stage of cognition.
- B. Child’s dependence on peer influence is increasing.
- C. Child will welcome opportunities for participation in self-care.
- D. Child is exploring their sense of self-identity.
Correct answer: C
Rationale: The correct answer is C. At the age of 8, children are typically eager to take on responsibilities and participate in self-care activities. This is a crucial developmental characteristic to consider when educating a child about managing a chronic condition like type 1 diabetes. Choice A is incorrect as children at this age are usually in the concrete operational stage, not abstract level, of cognition. Choice B is incorrect because while peer influence is important, it does not reach its peak at this age. Choice D is incorrect as exploring self-identity is more characteristic of adolescence, not 8-year-old children.
5. A healthcare professional is reviewing the laboratory report of a child with tetralogy of Fallot that indicates an elevated RBC count. What does the professional identify as the cause of the polycythemia?
- A. Low tissue oxygen needs
- B. Tissue oxygen needs
- C. Diminished iron level
- D. Hypertrophic cardiac muscle
Correct answer: B
Rationale: The correct answer is B: Tissue oxygen needs. Polycythemia occurs as the body's response to chronic hypoxia by increasing RBC production to enhance oxygen delivery. In tetralogy of Fallot, a congenital heart defect, the heart's structure causes reduced oxygen levels in the blood. This chronic hypoxia stimulates the bone marrow to produce more red blood cells, leading to an elevated RBC count. Choice A is incorrect as low blood pressure is not directly related to polycythemia in this context. Choice C, diminished iron level, is not the cause of polycythemia in tetralogy of Fallot. Choice D, hypertrophic cardiac muscle, is not the primary cause of the elevated RBC count in this case.
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