HESI RN
HESI Pediatric Practice Exam
1. The mother of a one-month-old calls the clinic to report that the back of her infant's head is flat. How should the nurse respond?
- A. Turn the infant on the left side braced against the crib when sleeping.
- B. Prop the infant in a sitting position with a cushion when not sleeping.
- C. Place a small pillow under the infant's head while lying on the back.
- D. Position the infant on the stomach occasionally when awake and active.
Correct answer: D
Rationale: Positioning the infant on the stomach occasionally when awake and active can help prevent flat spots on the head. This position allows for more natural movement and prevents prolonged pressure on one area of the head, reducing the risk of developing a flat spot. Turning the infant on the left side braced against the crib when sleeping (choice A) is not recommended as it does not address the issue of flat spots. Propping the infant in a sitting position with a cushion when not sleeping (choice B) may increase the risk of falls and is not suitable for a one-month-old. Placing a small pillow under the infant's head while lying on the back (choice C) should be avoided due to the risk of suffocation and sudden infant death syndrome (SIDS).
2. The healthcare provider is evaluating the effects of thyroid therapy used to treat a 5-month-old with hypothyroidism. Which behavior indicates that the treatment has been effective?
- A. Laughs readily, turns from back to side.
- B. Has strong Moro and tonic neck reflexes.
- C. Keeps fists clenched, opens hands when grasping an object.
- D. Can lift head, but not chest when lying on abdomen.
Correct answer: A
Rationale: The ability to laugh readily and turn from back to side indicates the effectiveness of thyroid therapy and normal development in a 5-month-old. These behaviors suggest improved muscle tone and motor skills, which are positive outcomes of thyroid hormone replacement therapy for hypothyroidism. Choices B, C, and D describe developmental milestones that are not specific indicators of the effectiveness of thyroid therapy in treating hypothyroidism in a 5-month-old.
3. A 7-year-old child with leukemia is receiving chemotherapy. The mother asks the practical nurse (PN) how to manage the child's nausea at home. What advice should the PN provide?
- A. Provide small, frequent meals.
- B. Encourage the child to eat spicy foods.
- C. Offer large meals less frequently.
- D. Allow the child to eat whatever they want.
Correct answer: A
Rationale: During chemotherapy, children may experience nausea. Providing small, frequent meals can help manage nausea as they are easier to tolerate, reducing the likelihood of vomiting. It is important to offer bland, non-spicy foods to avoid exacerbating nausea. Encouraging large meals less frequently or allowing the child to eat whatever they want may overwhelm the digestive system and worsen nausea. Therefore, the correct advice is to provide small, frequent meals to help the child manage nausea effectively.
4. The healthcare provider is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant's clinical picture?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Metabolic acidosis.
- D. Respiratory alkalosis.
Correct answer: A
Rationale: Pyloric stenosis leads to obstruction at the outlet of the stomach, causing frequent vomiting and loss of stomach acids. This results in a loss of hydrochloric acid and hydrogen ions, leading to metabolic alkalosis due to an increase in serum bicarbonate levels. Therefore, the correct answer is metabolic alkalosis. Choice B, respiratory acidosis, is incorrect as it is not typically associated with pyloric stenosis. Choice C, metabolic acidosis, is incorrect because the loss of stomach acids in pyloric stenosis leads to metabolic alkalosis, not acidosis. Choice D, respiratory alkalosis, is also incorrect as it is not the usual consequence of pyloric stenosis.
5. During a follow-up clinical visit, a mother tells the nurse that her 5-month-old son, who had surgical correction for tetralogy of Fallot, has rapid breathing, often takes a long time to eat, and requires frequent rest periods. The infant is not crying while being held, and his growth is in the expected range. Which intervention should the nurse implement?
- A. Stimulate the infant to cry to produce cyanosis
- B. Auscultate the heart and lungs while holding the infant
- C. Evaluate the infant for failure to thrive
- D. Obtain a 12-lead electrocardiogram
Correct answer: B
Rationale: Auscultating the heart and lungs while the infant is held is the most appropriate intervention to assess his current condition. This action allows the nurse to gather important information regarding the cardiovascular and respiratory status of the infant, which is crucial in evaluating his post-surgical recovery and overall well-being. Option A is incorrect as stimulating the infant to cry intentionally is not necessary and could cause distress. Option C is incorrect as the infant's growth is within the expected range, indicating no signs of failure to thrive. Option D is incorrect as obtaining a 12-lead electrocardiogram is not the initial intervention needed in this situation; assessing the heart and lungs through auscultation is more immediate and informative.
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