HESI RN
HESI Pediatrics Practice Exam
1. 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.
2. A child is recovering from an appendectomy. The parent asks when the child can resume normal activities. What is the best response by the nurse?
- A. The child can resume normal activities as soon as they feel up to it
- B. The child should avoid strenuous activities for at least 2 weeks
- C. The child can resume normal activities after the stitches are removed
- D. The child should avoid all physical activities for the next month
Correct answer: B
Rationale: After an appendectomy, it is important for the child to avoid strenuous activities for at least 2 weeks to allow for proper healing. Resuming normal activities too soon can put unnecessary strain on the healing process and increase the risk of complications.
3. 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: In infants, laughing readily and turning from back to side are developmental milestones that indicate effective thyroid therapy and normal development. These actions demonstrate improved muscle tone, coordination, and overall growth, which are key indicators of successful treatment for hypothyroidism in infants. Choices B, C, and D describe behaviors that are not specific indicators of thyroid therapy effectiveness in treating hypothyroidism in infants.
4. The practical nurse is caring for a child who was admitted for treatment of seizures. Which intervention should the nurse implement to help prevent injury from a seizure?
- A. Have a padded tongue depressor at the bedside.
- B. Keep the side rails padded and in an upright position.
- C. Place a padded helmet on the child’s head.
- D. Restrain the child during the seizure activity.
Correct answer: B
Rationale: The correct intervention to help prevent injury during a seizure is to keep the side rails padded and in an upright position. This measure helps to ensure the child's safety by preventing falls or accidental injuries. Using a padded tongue depressor or restraining the child can potentially cause harm and are not recommended. Placing a padded helmet is not a standard intervention for seizure safety in this scenario.
5. What information should the practical nurse ensure the family understands about caring for a child with a tracheostomy?
- A. Cardiopulmonary resuscitation.
- B. Hygiene practices, including showering.
- C. Proper technique for tracheostomy suctioning.
- D. Application of powder around the stoma.
Correct answer: A
Rationale: The correct answer is A: Cardiopulmonary resuscitation. It is essential for families to be educated in cardiopulmonary resuscitation (CPR) to manage emergencies involving patients with tracheostomies. Maintaining a clear airway is crucial for the child's safety and well-being. Choice B, hygiene practices, although important, is not as critical as CPR in managing a tracheostomy. Choice C, the proper technique for tracheostomy suctioning, is also crucial but does not take precedence over CPR in emergency situations. Choice D, application of powder around the stoma, is not a standard practice and may not be necessary for tracheostomy care.
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