HESI RN
HESI Pediatric Practice Exam
1. An infant with tetralogy of Fallot becomes acutely cyanotic and hyperpneic. Which action should the nurse implement first?
- A. Administer morphine sulfate.
- B. Start IV fluids.
- C. Place the infant in a knee-chest position.
- D. Provide 100% oxygen by face mask.
Correct answer: C
Rationale: In a situation where an infant with tetralogy of Fallot is acutely cyanotic and hyperpneic, the priority action should be to place the infant in a knee-chest position. This position helps increase systemic vascular resistance, improving pulmonary blood flow and subsequently ameliorating the cyanosis and hyperpnea. It is a non-invasive and effective intervention that can be promptly implemented by the nurse to address the immediate respiratory distress. Administering morphine sulfate (Choice A) is not the priority in this case as it may cause further respiratory depression. Starting IV fluids (Choice B) may not address the immediate cyanosis and hyperpnea. Providing 100% oxygen by face mask (Choice D) can help with oxygenation but may not be as effective as placing the infant in a knee-chest position to improve blood flow dynamics.
2. A child with a fever of 39°C (102.2°F) and a sore throat is brought to the clinic. The practical nurse suspects the child has streptococcal pharyngitis. Which diagnostic test should the practical nurse prepare the child for?
- A. Rapid antigen detection test.
- B. Throat culture.
- C. Complete blood count (CBC).
- D. Chest X-ray.
Correct answer: A
Rationale: A rapid antigen detection test is the appropriate diagnostic test for suspected streptococcal pharyngitis. This test is commonly used due to its quick results, helping in the prompt diagnosis and appropriate treatment of the condition. It specifically detects the presence of streptococcal antigens in the throat, aiding in confirming the diagnosis and guiding the healthcare provider in determining the most suitable treatment plan. Throat culture (Choice B) is a confirmatory test but is not as rapid as the rapid antigen detection test. Complete blood count (Choice C) and Chest X-ray (Choice D) are not specific tests for streptococcal pharyngitis and would not aid in confirming the diagnosis.
3. The healthcare provider is evaluating diet teaching for a client who has nontropical sprue (celiac disease). Choosing which food indicates that the teaching has been effective?
- A. Creamed corn.
- B. Pancakes.
- C. Rye crackers.
- D. Cooked oatmeal.
Correct answer: A
Rationale: Creamed corn is a gluten-free food, making it a suitable option for clients with celiac disease. This choice indicates effective diet teaching as it aligns with the dietary restrictions necessary for managing the condition. Pancakes, rye crackers, and cooked oatmeal contain gluten, which is harmful to individuals with celiac disease. Therefore, they are not suitable choices and would not indicate effective teaching for a client with this condition.
4. The nurse is measuring the frontal occipital circumference (FOC) of a 3-month-old infant and notes that the FOC has increased by 5 inches since birth, and the child's head appears large in relation to body size. Which action is most important for the nurse to take next?
- A. Measure the infant's head-to-toe length.
- B. Palpate the anterior fontanel for tension and bulging.
- C. Observe the infant for sunken eyes.
- D. Plot the measurement on the infant's growth chart.
Correct answer: B
Rationale: Palpating the anterior fontanel for tension and bulging is crucial in assessing for increased intracranial pressure. In this scenario, the infant's large head size and rapid increase in the frontal occipital circumference raise concerns for potential issues such as hydrocephalus. Measuring the head-to-toe length (Choice A) is not the priority when assessing for increased intracranial pressure. Observing for sunken eyes (Choice C) is more indicative of dehydration rather than increased intracranial pressure. While plotting the measurement on the infant's growth chart (Choice D) is important for tracking growth, it does not address the immediate concern of assessing for increased intracranial pressure.
5. A 3-year-old with HIV infection is staying with a foster family who is caring for 3 other foster children in their home. When one of the children acquires pertussis, the foster mother calls the clinic and asks the nurse what she should do. Which action should the nurse take first?
- A. Remove the child who has HIV from the foster home.
- B. Report the exposure of the child with HIV to the health department.
- C. Place the child who has HIV in reverse isolation.
- D. Review the immunization documentation of the child who has HIV.
Correct answer: D
Rationale: The priority action for the nurse is to review the immunization documentation of the child with HIV to ensure they have received the necessary vaccines. This step is crucial in protecting the child's health and preventing further complications from vaccine-preventable diseases like pertussis. By reviewing the immunization documentation first, the nurse can determine the child's protection against pertussis and other infectious diseases. Removing the child from the foster home (Choice A) may not be necessary if the child is adequately vaccinated. Reporting the exposure to the health department (Choice B) and placing the child in reverse isolation (Choice C) are important steps but reviewing the immunization status takes precedence to assess the child's protection and guide further actions.
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