HESI RN
HESI Pediatric Practice Exam
1. A child who is admitted to the hospital with anemia is anxious, fearful, and hyperventilating. The nurse anticipates the child developing which acid-base imbalance?
- A. Metabolic acidosis
- B. Respiratory acidosis
- C. Respiratory alkalosis
- D. Metabolic alkalosis
Correct answer: C
Rationale: In this scenario, the child is hyperventilating, which leads to excessive loss of carbon dioxide. This loss of carbon dioxide causes respiratory alkalosis due to a decrease in the partial pressure of carbon dioxide in the blood. Therefore, the correct answer is respiratory alkalosis. Choices A, B, and D are incorrect. Metabolic acidosis is characterized by a decrease in pH and bicarbonate levels due to conditions like kidney disease. Respiratory acidosis is caused by retention of carbon dioxide, leading to an increase in the partial pressure of carbon dioxide. Metabolic alkalosis results from a loss of acid or an increase in bicarbonate levels.
2. A child with Graves' disease who is taking propranolol (Inderal) is seen in the clinic. The nurse should monitor the child for which therapeutic response?
- A. Increased weight gain
- B. Decreased heart rate
- C. Reduced headaches
- D. Diminished fatigue
Correct answer: B
Rationale: When a child with Graves' disease is prescribed propranolol (Inderal), the nurse should monitor for a decreased heart rate as a therapeutic response. Propranolol is a beta-blocker that acts to slow down the heart rate, which is beneficial in managing the symptoms of Graves' disease, such as tachycardia and other cardiovascular manifestations. Choices A, C, and D are incorrect because propranolol is not typically associated with increased weight gain, reduced headaches, or diminished fatigue as its primary therapeutic effect in this context.
3. The healthcare provider is assessing an infant with diarrhea and lethargy. Which finding should the provider identify that is consistent with early dehydration?
- A. Tachycardia
- B. Bradycardia
- C. Dry mucous membranes
- D. Decreased skin turgor
Correct answer: A
Rationale: Tachycardia is a common early sign of dehydration in infants. It is important for healthcare providers to be vigilant in monitoring infants with these symptoms, as prompt intervention is crucial to prevent further complications.
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. The caregiver is teaching a group of parents about injury prevention for toddlers. Which statement by a parent indicates a need for further teaching?
- A. I will keep all cleaning supplies locked away.
- B. I will teach my child how to swim this summer.
- C. I will make sure my child wears a helmet while riding a tricycle.
- D. I will place my child in a car seat for every car ride.
Correct answer: B
Rationale: Teaching children how to swim is valuable, but parental supervision around water is essential to prevent drowning. It's crucial to emphasize constant supervision when young children are near water, regardless of their swimming abilities. The other choices (A, C, and D) demonstrate appropriate safety measures for injury prevention in toddlers, such as securing cleaning supplies, ensuring helmet use during tricycle rides, and using a car seat for every car ride.
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