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 school nurse is educating parents of school-age children on the significance of immunizations for childhood communicable diseases. What preventable disease may lead to the complication of encephalitis?
- A. Varicella (Chickenpox)
- B. Scarlet fever
- C. Poliomyelitis
- D. Whooping cough
Correct answer: A
Rationale: The correct answer is A: Varicella (Chickenpox). Varicella can lead to the complication of encephalitis, characterized by brain inflammation. Encephalitis is a known complication of chickenpox in rare cases. Scarlet fever (choice B) is caused by Streptococcus bacteria and does not typically result in encephalitis. Poliomyelitis (choice C) primarily affects the spinal cord and does not lead to encephalitis. Whooping cough (choice D) can cause severe coughing spells but does not directly result in encephalitis.
3. A 2-year-old child who was admitted to the hospital for further surgical repair of a clubfoot is standing in the crib, crying. The child refuses to be comforted and calls for the mother. As the nurse approaches the crib to provide morning care, the child screams louder. Knowing that this behavior is typical of the stage of protest, what is the most appropriate nursing intervention?
- A. Use comforting measures while holding the child.
- B. Fill the basin with water and bathe the child.
- C. Sit by the crib and bathe the child later when the anxiety decreases.
- D. Postpone the bath for a day because a child this upset should not be traumatized further.
Correct answer: C
Rationale: During the stage of protest, children may display distress when separated from their primary caregiver. Sitting by the crib and providing comfort when the child is less anxious is an appropriate intervention. Choice A is incorrect because attempting to hold the child while they are in distress may escalate the situation. Choice B is inappropriate as it ignores the child's emotional distress and proceeds with a task that can wait. Choice D is not the best option as postponing the bath for a day is not necessary; instead, addressing the child's emotional needs promptly is crucial in this situation.
4. 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: Following surgery for hypertrophic pyloric stenosis (HPS) in infants, it is appropriate to resume regular formula feeding within 24 hours postoperatively to support recovery. This helps maintain adequate nutrition and hydration for the infant. Choice A is incorrect because thickened formula may not be necessary and could potentially cause issues postoperatively. Choice B is incorrect as withholding feedings for the first 24 hours can lead to nutritional deficiencies and delay recovery. Choice D is inappropriate as additional glucose feedings are not typically indicated postoperatively for infants with HPS and may not provide the necessary nutrition needed for recovery.
5. You are managing a 10-month-old infant who has had severe diarrhea and vomiting for 3 days and is now showing signs of shock. You have initiated supplemental oxygen therapy and elevated the lower extremities. En route to the hospital, you note that the child's work of breathing has increased. What must you do first?
- A. Lower the extremities and reassess the child
- B. Begin positive pressure ventilations and reassess the child
- C. Place a nasopharyngeal airway and increase the oxygen flow
- D. Listen to the lungs with a stethoscope for abnormal breath sounds
Correct answer: A
Rationale: In this scenario, the infant is presenting with signs of respiratory distress, as evidenced by the increased work of breathing. Lowering the extremities can help reduce the workload on the diaphragm and improve respiratory mechanics. This action can be beneficial in optimizing the infant's breathing before considering more invasive interventions. Option B, initiating positive pressure ventilations, should be considered if the infant's condition deteriorates further and not as the first step. Option C, placing a nasopharyngeal airway and increasing oxygen flow, is not indicated as the primary intervention for increased work of breathing. Option D, listening to the lungs with a stethoscope, may provide additional information but is not the most urgent action needed in this situation.
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