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. What information should the nurse provide to parents of a 3-year-old boy with Duchenne muscular dystrophy who inquire about the disease and future children?
- A. This is an inherited X-linked recessive disorder, which primarily affects male children in the family
- B. The striated muscle groups of males can be impacted by a lack of the protein dystrophin in their mothers
- C. The male infant had a viral infection that went unnoticed and untreated so muscle damage was incurred
- D. Birth trauma with a breech vaginal birth causes damage to the spinal cord, thus weakening the muscles
Correct answer: A
Rationale: Duchenne muscular dystrophy is an X-linked recessive disorder caused by mutations in the DMD gene on the X chromosome. This disorder primarily affects males because they have one X chromosome, inherited from their mothers, who may be carriers of the mutated gene. Females have two X chromosomes, providing a protective effect as the normal gene on one X chromosome can compensate for the mutated gene on the other. Therefore, the nurse should explain to the parents that Duchenne muscular dystrophy is an inherited X-linked recessive disorder, which is why their son has the disease and why there is a risk of passing it on to future sons. Choice B is incorrect as it inaccurately implies that the lack of dystrophin in mothers impacts their sons' muscle groups. Choice C is incorrect as it suggests a viral infection caused the muscle damage, which is not the case with Duchenne muscular dystrophy. Choice D is incorrect as it attributes the muscle weakness to birth trauma instead of the genetic nature of the disorder.
3. 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 with HIV from the foster home.
- B. Report the exposure of the child with HIV to the health department.
- C. Place the child with HIV in reverse isolation.
- D. Review the immunization documentation of the child with HIV.
Correct answer: D
Rationale: The priority action for the nurse is to review the immunization documentation of the child with HIV. This step ensures that the child has received the necessary vaccines to protect against pertussis and other preventable diseases. It is essential to verify the immunization status to provide appropriate care and prevent further transmission of infectious diseases within the foster home. Removing the child from the foster home (Choice A) may not be necessary if the child is adequately protected through immunization. Reporting the exposure to the health department (Choice B) is important but not the first action. Placing the child in reverse isolation (Choice C) is not indicated for pertussis exposure.
4. A 4-year-old child with a history of asthma is brought to the clinic with a complaint of cough and wheezing. The nurse notes that the child has been using a rescue inhaler more frequently over the past week. What should the nurse do next?
- A. Review the child’s asthma action plan
- B. Administer a dose of the rescue inhaler
- C. Instruct the parents to increase the dose of the controller medication
- D. Schedule a follow-up appointment in one week
Correct answer: A
Rationale: In this scenario, the best course of action for the nurse is to review the child's asthma action plan. By doing so, the nurse can assess the current asthma management, ensure that the child is using the rescue inhaler correctly, and make any necessary adjustments to the treatment plan. Reviewing the asthma action plan helps in identifying triggers, proper use of medications, and when to seek medical help. Administering a dose of the rescue inhaler without assessing the current management plan may not address the underlying issue. Instructing the parents to increase the dose of the controller medication without proper evaluation can lead to inappropriate medication adjustments. Scheduling a follow-up appointment in one week is not the immediate action needed to address the child's current symptoms.
5. What information should be reinforced with the parents about introducing solid foods to their infant?
- A. Begin with one tablespoon of the food.
- B. Introduce each food 4 to 7 days apart.
- C. Mix the new food with rice cereal.
- D. Remove foods when the infant refuses them.
Correct answer: B
Rationale: The correct answer is B. Introducing solid foods 4 to 7 days apart is crucial as it allows time to identify any allergic reactions or intolerances to specific foods. This gradual introduction helps parents monitor their infant's response to new foods and pinpoint any potential issues, ensuring the infant's safety and well-being. Choices A, C, and D are incorrect because starting with one tablespoon of the food, mixing new food with rice cereal, and removing foods when the infant refuses them are not recommended practices for introducing solid foods to infants.
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