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 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.
3. The healthcare provider is preparing to administer digoxin (Lanoxin) to a 6-month-old infant with heart failure. The healthcare provider notes that the infant’s heart rate is 90 beats per minute. What should the healthcare provider do next?
- A. Administer the medication as prescribed
- B. Hold the medication and notify the healthcare provider
- C. Reassess the heart rate in 30 minutes
- D. Administer half the prescribed dose
Correct answer: B
Rationale: In this scenario, the correct action is to hold the medication and notify the healthcare provider. Digoxin should be withheld if the infant’s heart rate is below 100 beats per minute. Administering digoxin in this situation can further slow down the heart rate in infants with heart failure, leading to potential adverse effects. Reassessing the heart rate in 30 minutes is not the best immediate action to take, as prompt notification and withholding of the medication are crucial. Administering the medication as prescribed or giving half the dose can exacerbate the situation by potentially further lowering the heart rate.
4. The caregiver is being educated by a healthcare provider about the use of a metered-dose inhaler (MDI) for their 8-year-old child with asthma. Which statement by the caregiver indicates a need for further teaching?
- A. I will shake the inhaler before each use
- B. My child should breathe in quickly after pressing the inhaler
- C. I should wait a minute between puffs
- D. We should use a spacer with the inhaler
Correct answer: B
Rationale: The caregiver should be informed that the child should breathe in slowly and deeply after pressing the inhaler. This allows for better medication delivery to the lungs and ensures optimal effectiveness of the treatment.
5. A child receives a prescription for amantadine 42 mg PO BID. Amantadine is available as a 50 mg/5 mL syrup. Using a supplied calibrated measuring device, how many mL should be administered per dose? (Round to the nearest tenth.)
- A. 4.2 mL
- B. 5 mL
- C. 3.6 mL
- D. 4 mL
Correct answer: A
Rationale: To calculate the mL per dose, divide the prescribed dose (42 mg) by the concentration of the syrup (50 mg/5 mL) and then convert the result to mL. 42 mg / 50 mg = 0.84. To find the amount in mL, multiply 0.84 by 5 mL, which equals 4.2 mL. Therefore, 4.2 mL should be administered per dose.
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