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. A 5-year-old child is brought to the emergency department with severe abdominal pain and vomiting. The child’s parent reports that the pain started suddenly and is located in the lower right abdomen. What should the nurse do first?
- A. Administer pain medication
- B. Notify the healthcare provider immediately
- C. Start an IV line for fluid administration
- D. Obtain a complete blood count
Correct answer: B
Rationale: The correct answer is to notify the healthcare provider immediately. The child's presentation of sudden, severe abdominal pain in the lower right abdomen is highly concerning for appendicitis, a medical emergency. Promptly notifying the healthcare provider is crucial for further evaluation and management. Administering pain medication as the first action might mask symptoms and delay diagnosis. Starting an IV line for fluid administration and obtaining a complete blood count are important interventions but should come after healthcare provider notification.
3. A 6-month-old female is scheduled to receive diphtheria, tetanus toxoid, and acellular pertussis vaccine (DTaP) and IPV (inactivated poliovirus vaccine) immunizations. She is recovering from a cold but is otherwise healthy and afebrile. Her 5-year-old sister is receiving chemotherapy. Which considerations should the nurse make for this situation?
- A. DTaP and IPV can be safely given to the infant at the scheduled time.
- B. DTaP and IPV are contraindicated because the infant has a cold.
- C. IPV is contraindicated because her sister is immunocompromised.
- D. DTaP is contraindicated because her sister is immunocompromised.
Correct answer: A
Rationale: DTaP and IPV can be safely administered to a child with a mild illness like a cold, even if there is an immunocompromised family member, as these vaccines do not contain live viruses. It is important to ensure that the child is otherwise healthy and afebrile before administering the vaccines. The presence of a cold is not a contraindication for receiving DTaP and IPV vaccines. Choice A is correct because the infant can receive both vaccines as scheduled. Choice B is incorrect as having a cold does not contraindicate DTaP and IPV administration. Choice C is incorrect because IPV is not contraindicated due to the sister's immunocompromised status. Choice D is incorrect as both DTaP and IPV can be given in this scenario.
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. A 10-year-old child is brought to the emergency department after falling from a bicycle and hitting their head. The nurse notes that the child is drowsy and has a headache. What is the nurse’s priority action?
- A. Perform a full neurological assessment
- B. Administer pain medication
- C. Allow the child to rest quietly
- D. Check the child's immunization status
Correct answer: A
Rationale: In a child who has fallen and hit their head, presenting with drowsiness and headache, the priority action for the nurse is to perform a full neurological assessment. This is crucial to evaluate the extent of the head injury and monitor for signs of increased intracranial pressure, which could indicate a more severe traumatic brain injury. Administering pain medication or allowing the child to rest quietly are not appropriate initial actions without first assessing the neurological status. Checking the child's immunization status is important for overall health but is not the priority in this acute situation.
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