HESI RN
HESI Practice Test Pediatrics
1. A child admitted with diabetic ketoacidosis is demonstrating Kussmaul respirations. The nurse determines that the increased respiratory rate is a compensatory mechanism for which acid-base alteration?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Respiratory alkalosis.
- D. Metabolic acidosis.
Correct answer: D
Rationale: Kussmaul respirations are deep, rapid breathing patterns observed in metabolic acidosis, such as diabetic ketoacidosis. In this condition, the body tries to compensate for the acidic environment by increasing the respiratory rate to eliminate excess carbon dioxide (CO2) and decrease the acid levels, thereby helping to correct the acid-base imbalance. Therefore, the correct answer is metabolic acidosis.
2. The mother of a 9-month-old girl provides the practical nurse with information about her daughter's diet. Which statement by the mother may indicate why the infant has been diagnosed with iron-deficiency anemia?
- A. She almost never drinks sugary water.
- B. She has been on whole milk for 7 months.
- C. She likes to chew on bread as a snack.
- D. She doesn't like to eat peaches or pears.
Correct answer: B
Rationale: The correct answer is B. Infants should not be given cow's milk before 1 year of age as it can interfere with iron absorption and lead to anemia. Choice A is incorrect as avoiding sugary water is actually a good practice. Choice C is unrelated to iron-deficiency anemia. Choice D, not liking peaches or pears, is also not directly related to iron-deficiency anemia.
3. What suggestion should the nurse provide to prevent diaper rash in a 4-month-old infant as requested by the mother?
- A. Generously powder the baby's diaper area with talcum powder at each diaper change to promote dryness.
- B. Wash the diaper area every 2 hours with soap and water to help prevent skin breakdown.
- C. Use a barrier cream, such as zinc oxide, which does not have to be completely removed with each diaper change.
- D. Place a cloth diaper inside the disposable diaper for overnight periods when increased wearing time is likely.
Correct answer: C
Rationale: Using a barrier cream like zinc oxide forms a protective layer on the skin, creating a barrier against irritants and moisture, thus helping to prevent diaper rash. Unlike other options, barrier creams do not need to be completely removed at each diaper change, allowing the skin to remain protected between changes.
4. A 16-year-old adolescent with cystic fibrosis is admitted to the hospital with a respiratory infection. The nurse is teaching the adolescent about the importance of airway clearance techniques. Which statement by the adolescent indicates a need for further teaching?
- A. I should do my airway clearance exercises every day.
- B. I don’t need to do my airway clearance exercises if I feel okay.
- C. Airway clearance helps prevent mucus buildup in my lungs.
- D. I should continue my airway clearance routine even when I’m not sick.
Correct answer: B
Rationale: The correct answer is B. Airway clearance exercises are essential for individuals with cystic fibrosis to prevent mucus buildup in their lungs. It is crucial to perform these exercises regularly, even when feeling well, to maintain lung health and prevent complications. Choice A is correct as doing airway clearance exercises daily is necessary. Choice C is also accurate as airway clearance does indeed help prevent mucus buildup. Choice D is correct as it is important to continue the airway clearance routine even when not sick to maintain lung health. Choice B is incorrect because stating that airway clearance exercises are unnecessary when feeling okay demonstrates a misunderstanding of the importance of consistent airway clearance in cystic fibrosis management.
5. The nurse is caring for a 2-year-old child who was admitted for dehydration due to gastroenteritis. The child is now receiving IV fluids and appears more alert. What is the best indicator that the child’s condition is improving?
- A. The child is more alert and playful
- B. The child’s urine output has increased
- C. The child’s vital signs are stable
- D. The child is tolerating small amounts of oral fluids
Correct answer: B
Rationale: Increased urine output is a reliable indicator that hydration status is improving. While alertness and playfulness are positive signs, increased urine output directly reflects improved hydration. Stable vital signs are important but may not directly indicate hydration status. Tolerating small amounts of oral fluids is a good sign but may not be as direct an indicator as increased urine output.
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