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. The practical nurse is reinforcing education with the parents of a child prescribed iron supplements for iron-deficiency anemia. Which statement by the parents indicates they need further instruction?
- A. We will give the iron supplement with milk to reduce stomach upset.
- B. We should give the iron supplement with orange juice to improve absorption.
- C. The supplement may cause the stools to appear dark or black.
- D. We should store the iron supplements out of reach of children.
Correct answer: A
Rationale: Iron supplements should not be given with milk as calcium can interfere with iron absorption. Instead, it is recommended to give it with a source of vitamin C, such as orange juice, to enhance iron absorption. Giving iron supplements with milk may decrease the absorption of iron and should be avoided. Choice B is the correct method to improve iron absorption. Choice C is correct as iron supplements can cause dark or black stools due to unabsorbed iron. Choice D is also correct as iron supplements should always be stored out of reach of children to prevent accidental ingestion.
3. A 4-year-old child is brought to the clinic with complaints of ear pain and fever. The practical nurse suspects otitis media. Which symptom supports this suspicion?
- A. Clear nasal discharge.
- B. Dry, hacking cough.
- C. Tugging at the ear.
- D. Sore throat.
Correct answer: C
Rationale: Tugging at the ear is a common symptom in children with otitis media. It often indicates discomfort or pain in the ear, suggesting inflammation or infection in the middle ear. This behavior is frequently observed in young children who are unable to express their discomfort verbally, making it a significant clinical indicator for otitis media in this age group. Clear nasal discharge (Choice A) is more indicative of a cold or allergies, while a dry, hacking cough (Choice B) is not typically associated with otitis media. Although a sore throat (Choice D) can sometimes accompany ear infections, tugging at the ear is a more specific and reliable symptom in this case.
4. A 7-year-old is admitted to the hospital with persistent vomiting, and a nasogastric tube attached to low intermittent suction is applied. Which finding is most important for the nurse to report to the healthcare provider?
- A. Gastric output of 100 mL in the last 8 hours.
- B. Shift intake of 640 mL IV fluids plus 30 mL PO ice chips.
- C. Serum potassium of 3.0 mEq/L.
- D. Serum pH of 7.45.
Correct answer: C
Rationale: A serum potassium level of 3.0 mEq/L is significantly low and indicates hypokalemia, which can lead to serious complications such as cardiac arrhythmias. Therefore, it is crucial for the nurse to report this finding promptly to the healthcare provider for immediate intervention. The other findings are not as critical in this situation. Gastric output of 100 mL in the last 8 hours may be expected in a patient with persistent vomiting. The shift intake of IV fluids and ice chips indicates fluid replacement, which is important but not as urgent as correcting electrolyte imbalances. A serum pH of 7.45 is within the normal range and does not indicate an immediate concern.
5. 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.
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