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. The parents of a 3-year-old boy who has Duchenne muscular dystrophy (DMD) ask, 'how can our son have this disease? We are wondering if we should have any more children.' What information should the nurse provide these parents?
- A. This is an inherited X-linked recessive disorder, which primarily affects male children in the family.
- B. The male infant had a viral infection that went unnoticed and untreated, leading to muscle damage.
- C. The lack of the protein dystrophin in the mother can impact the muscle groups of males.
- D. Damage to the spinal cord due to birth trauma from a breech vaginal birth weakens the muscles.
Correct answer: A
Rationale: The nurse should inform the parents that Duchenne muscular dystrophy is an X-linked recessive disorder, which primarily affects male children in the family. This genetic condition is caused by a mutation in the dystrophin gene located on the X chromosome. Females are usually carriers of the gene mutation and may pass it on to their sons. Daughters of carrier mothers have a 50% chance of being carriers themselves. Understanding the genetics of DMD can help the parents make informed decisions about family planning and genetic counseling.
3. The nurse is caring for a 2-year-old child who was admitted for dehydration due to gastroenteritis. The child is now receiving IV fluids and appears more alert. What is the best indicator that the child’s condition is improving?
- A. The child is more alert and playful
- B. The child’s urine output has increased
- C. The child’s vital signs are stable
- D. The child is tolerating small amounts of oral fluids
Correct answer: B
Rationale: Increased urine output is a reliable indicator that hydration status is improving. While alertness and playfulness are positive signs, increased urine output directly reflects improved hydration. Stable vital signs are important but may not directly indicate hydration status. Tolerating small amounts of oral fluids is a good sign but may not be as direct an indicator as increased urine output.
4. When caring for a 4-year-old child diagnosed with celiac disease, the parent asks about foods to avoid. Which response by the nurse is correct?
- A. Avoid all dairy products
- B. Avoid foods containing wheat, barley, and rye
- C. Avoid all foods high in sugar
- D. Avoid foods with artificial coloring
Correct answer: B
Rationale: Celiac disease is managed with a strict gluten-free diet, necessitating the avoidance of foods containing wheat, barley, and rye. Gluten is found in these grains and can trigger an immune response in individuals with celiac disease, leading to damage to the small intestine. Therefore, it is essential for individuals with celiac disease, including children, to carefully avoid gluten-containing foods to maintain their health and well-being.
5. What action should the nurse implement when the infusion of chemotherapy via an implanted medication port is complete for a 16-year-old with acute myelocytic leukemia at the outpatient oncology clinic?
- A. Administer Zofran
- B. Obtain blood samples for RBCs, WBCs, and platelets
- C. Flush mediport with saline and heparin solution
- D. Initiate an infusion of normal saline
Correct answer: C
Rationale: The correct action for the nurse to implement when the chemotherapy infusion is complete is to flush the mediport with saline and heparin solution. This process helps prevent clotting and ensures the patency of the port, which is essential for future medication administrations and blood draws. Administering Zofran (Choice A) is not necessary after completing the chemotherapy infusion. Obtaining blood samples (Choice B) for RBCs, WBCs, and platelets is important but not the immediate action after completing the infusion. Initiating an infusion of normal saline (Choice D) is not required unless there is a specific indication for it.
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