HESI RN
HESI Pediatrics Practice Exam
1. When reviewing developmental changes with the parents of a 6-month-old infant, what information should the practical nurse reinforce?
- A. Encourage the infant to self-feed finger foods.
- B. Teach the parents strategies to help the infant sit up.
- C. Provide a developmentally safe environment for the infant.
- D. Explain that an increased appetite typically occurs in the next 6 months.
Correct answer: C
Rationale: The correct answer is C because providing a developmentally safe environment for a 6-month-old infant is crucial as they begin to explore their surroundings more actively. This includes ensuring that the environment is free of hazards and that the infant is supervised to prevent accidents. Choice A is incorrect because self-feeding finger foods may not be developmentally appropriate for a 6-month-old infant. Choice B is incorrect as most infants are able to sit up with support around 6 months of age without the need for specific teaching strategies. Choice D is also incorrect as while appetite changes can occur, explaining a specific increase in appetite over the next 6 months is not a primary focus when discussing developmental changes with parents of a 6-month-old.
2. In a hospitalized child receiving IV fluids for dehydration, what is the best indicator that the child’s dehydration is improving?
- A. The child’s urine output increases
- B. The child’s skin turgor is normal
- C. The child’s weight increases
- D. The child’s vital signs are stable
Correct answer: A
Rationale: An increase in urine output is a reliable indicator of improving dehydration in a child. It signifies that the kidneys are functioning better, helping to restore fluid balance in the body. Monitoring urine output is crucial in assessing hydration status and response to treatment. Choices B, C, and D are not the best indicators of improving dehydration. Normal skin turgor is helpful but may not change immediately with improving hydration. Weight increase may reflect retained fluids rather than improved hydration status. Stable vital signs are important but may not always indicate improving dehydration.
3. The heart rate for a 3-year-old with a congenital heart defect has steadily decreased over the last few hours; it is now 76 bpm, whereas the previous reading 4 hours ago was 110 bpm. Which additional finding should be reported immediately to a healthcare provider?
- A. Oxygen saturation of 94%.
- B. Respiratory rate of 25 breaths/minute.
- C. Urine output of 20 mL/hr.
- D. Blood pressure of 70/40.
Correct answer: D
Rationale: A significant drop in heart rate and blood pressure should be reported immediately as it may indicate worsening of the congenital heart defect. A decrease in blood pressure to 70/40 is a critical finding that suggests potential cardiovascular compromise and requires urgent attention to prevent further deterioration. Oxygen saturation, respiratory rate, and urine output are important parameters, but in this scenario, the alarming decrease in blood pressure is a more critical finding that necessitates immediate reporting to the healthcare provider.
4. The nurse is caring for a 3-year-old child who has been recently diagnosed with cystic fibrosis. Which discharge instruction by the nurse is most important to promote pulmonary function?
- A. Chest physiotherapy should be performed before meals and at bedtime
- B. Cough suppressants can be used up to four times a day for relief
- C. Oxygen should be given through a nasal cannula between 4-6 L/min
- D. Exercise is discouraged in order to preserve pulmonary vital capacity
Correct answer: B
Rationale: In cystic fibrosis, thick mucus obstructs the airways, making it difficult to clear from the lungs. Cough suppressants can help reduce the discomfort associated with persistent coughing, allowing the child to cough more effectively to clear the mucus, thus promoting pulmonary function. Chest physiotherapy, not exercise, helps mobilize the mucus. Oxygen therapy may be needed but is not the most important for promoting pulmonary function in this case.
5. A 13-year-old client with type 1 diabetes is admitted to the hospital with a blood glucose level of 450 mg/dL. The client is lethargic and has fruity-smelling breath. What is the nurse’s priority action?
- A. Administer insulin as prescribed
- B. Start an IV infusion of normal saline
- C. Check the client’s urine for ketones
- D. Monitor the client’s vital signs
Correct answer: B
Rationale: The correct priority action for the nurse is to start an IV infusion of normal saline. The client's presentation with lethargy, fruity-smelling breath, and high blood glucose level indicates diabetic ketoacidosis (DKA). IV fluids are essential to correct dehydration and help stabilize the client's condition. Checking for ketones in the urine is important, but fluid replacement takes precedence to address the immediate risk of dehydration and electrolyte imbalances. Administering insulin is also a crucial intervention for DKA, but fluid resuscitation should first be initiated.
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