HESI RN
Pediatric HESI
1. A 2-year-old child is admitted with severe dehydration due to gastroenteritis. Which assessment finding indicates that the child's condition is improving?
- A. Decreased heart rate.
- B. Sunken fontanelle.
- C. Increased urine output.
- D. Dry mucous membranes.
Correct answer: C
Rationale: Increased urine output is a positive sign indicating that the child's hydration status is improving. It suggests that the kidneys are functioning more effectively and able to excrete urine, which is a crucial indicator of improved hydration levels in a dehydrated patient. Decreased heart rate (Choice A) can be a sign of possible shock. A sunken fontanelle (Choice B) is a sign of dehydration. Dry mucous membranes (Choice D) are also indicative of dehydration.
2. A child who weighs 25 kg is receiving IV ampicillin 300 mg/kg/24 hours in equally divided doses every 4 hours. How many milligrams should the nurse administer to the child for each dose?
- A. 1875 mg
- B. 625 mg
- C. 2000 mg
- D. 1500 mg
Correct answer: A
Rationale: To calculate the dose for each administration, multiply the child's weight (25 kg) by the dose (300 mg/kg/24 hours) and divide by the number of doses per day (6, as doses are every 4 hours). This gives us (25 kg * 300 mg/kg / 24 hours) / 6 doses = 1875 mg. Therefore, the nurse should administer 1875 mg for each dose. Choice B, 625 mg, is incorrect as it does not consider the correct calculation based on the weight and prescribed dose. Choice C, 2000 mg, is incorrect as it is not derived from the correct dosage calculation. Choice D, 1500 mg, is incorrect as it does not reflect the accurate dosage calculation based on the weight of the child and the prescribed dose.
3. The practical nurse is providing care for a toddler who has just returned from surgery for a tonsillectomy. Which intervention is a priority in the immediate postoperative period?
- A. Offer clear fluids frequently.
- B. Encourage the child to cough and deep breathe.
- C. Monitor for frequent swallowing.
- D. Apply a warm compress to the throat area.
Correct answer: C
Rationale: Monitoring for frequent swallowing is a priority intervention in the immediate postoperative period after a tonsillectomy. Frequent swallowing may indicate bleeding from the surgical site, which requires immediate attention to prevent complications such as hemorrhage. Offering clear fluids frequently may not be appropriate immediately after surgery. Encouraging coughing and deep breathing may increase the risk of bleeding. Applying a warm compress to the throat area is not recommended as it can increase blood flow to the surgical site, potentially causing bleeding.
4. 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.
5. A 2-year-old is admitted to the hospital with possible encephalitis, and a lumbar puncture is scheduled. Which information should the nurse provide this child concerning the procedure?
- A. Describe the side-lying, knees to chest position that must be assumed during the procedure.
- B. Tell the child to expect loud clicking noises during the procedure that may be slightly annoying.
- C. Reassure the child that there will be no restrictions on activity after the procedure is completed.
- D. Explain that fluids cannot be taken for 8 hours before the procedure and for 4 hours after the procedure.
Correct answer: A
Rationale: The correct answer is A. Describing the side-lying, knees to chest position that must be assumed during the lumbar puncture procedure is essential as it helps the child understand what to expect, promotes cooperation, and reduces anxiety. This position is necessary for the procedure to be performed safely and effectively. Choice B is incorrect because mentioning loud clicking noises may increase the child's anxiety. Choice C is incorrect because there may be restrictions on activity after the procedure, depending on individual cases. Choice D is also incorrect as it provides information about fluid intake restrictions that are not directly related to the procedure itself.
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