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 action should the nurse implement after the infusion is complete for a 16-year-old with acute myelocytic leukemia receiving chemotherapy via an implanted medication port at the outpatient oncology clinic?
- A. Administer Zofran
- B. Obtain blood samples for RBCs, WBCs, and platelets
- C. Flush the mediport with saline and heparin solution
- D. Initiate an infusion of normal saline
Correct answer: C
Rationale: After completing the chemotherapy infusion via the implanted medication port, the nurse should flush the mediport with saline and heparin solution. This action helps prevent clot formation in the port, ensuring its patency for future use and reducing the risk of complications associated with catheter occlusion. Administering Zofran (Choice A) is used for managing chemotherapy-induced nausea and vomiting, not for post-infusion care. Obtaining blood samples for RBCs, WBCs, and platelets (Choice B) is important for monitoring the patient's blood count but is not the immediate post-infusion priority. Initiating an infusion of normal saline (Choice D) is not necessary after completing the chemotherapy infusion.
3. Which developmental behavior should the practical nurse identify as normal for a 6-month-old infant?
- A. Rolls over completely.
- B. Creeps on all fours.
- C. Pulls self to a standing position.
- D. Assumes a sitting position independently.
Correct answer: A
Rationale: The correct answer is A: 'Rolls over completely.' By 6 months of age, infants typically achieve the milestone of rolling over completely. This ability demonstrates increasing strength and coordination. Creeping on all fours, pulling self to a standing position, and assuming a sitting position independently are skills that are usually developed at later stages of infancy. Creeping usually occurs around 9-10 months, pulling self to a standing position around 9-12 months, and assuming a sitting position independently around 8 months. Therefore, at 6 months, rolling over completely is the most expected developmental behavior.
4. The healthcare provider is caring for a 3-year-old child who is hospitalized with dehydration. The child is now receiving IV fluids and has started to produce urine. What is the best indicator that the child’s dehydration is improving?
- A. The child’s urine output has increased
- B. The child’s skin turgor is normal
- C. The child’s weight has increased
- D. The child’s vital signs are stable
Correct answer: A
Rationale: An increase in urine output is a reliable indicator that the child's hydration status is improving. Adequate urine output signifies that the kidneys are functioning properly and that the body is effectively eliminating waste and excess fluids, indicating improved hydration levels. The other options are not as direct indicators of hydration status. Skin turgor and weight changes can be influenced by various factors, and stable vital signs do not specifically reflect hydration status.
5. The healthcare provider finds a 6-month-old infant unresponsive and calls for help. After opening the airway and finding the infant is still not breathing, which action should the provider take?
- A. Palpate femoral pulse and check for regularity.
- B. Deliver cycles of 30 chest compressions and 2 breaths.
- C. Give two breaths that make the chest rise.
- D. Feel the carotid pulse and check for adequate breathing.
Correct answer: C
Rationale: In pediatric basic life support, for an unresponsive infant who is not breathing normally, the correct action is to give two breaths that make the chest rise. This helps provide oxygen to the infant's body and is a crucial step in resuscitation efforts for infants in distress. Choices A, B, and D are incorrect. Palpating the femoral pulse or feeling the carotid pulse is not indicated in this scenario where the infant is unresponsive and not breathing. Delivering cycles of chest compressions and breaths is not the immediate action to take; the priority is to provide two breaths to help with oxygenation.
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