HESI RN
Pediatric HESI
1. A 16-year-old adolescent with cystic fibrosis is admitted to the hospital with a respiratory infection. The nurse is teaching the adolescent about the importance of airway clearance techniques. Which statement by the adolescent indicates a need for further teaching?
- A. I should do my airway clearance exercises every day.
- B. I don’t need to do my airway clearance exercises if I feel okay.
- C. Airway clearance helps prevent mucus buildup in my lungs.
- D. I should continue my airway clearance routine even when I’m not sick.
Correct answer: B
Rationale: The correct answer is B. Airway clearance exercises are essential for individuals with cystic fibrosis to prevent mucus buildup in their lungs. It is crucial to perform these exercises regularly, even when feeling well, to maintain lung health and prevent complications. Choice A is correct as doing airway clearance exercises daily is necessary. Choice C is also accurate as airway clearance does indeed help prevent mucus buildup. Choice D is correct as it is important to continue the airway clearance routine even when not sick to maintain lung health. Choice B is incorrect because stating that airway clearance exercises are unnecessary when feeling okay demonstrates a misunderstanding of the importance of consistent airway clearance in cystic fibrosis management.
2. 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.
3. In a 6-year-old child with asthma experiencing difficulty breathing and using accessory muscles to breathe with a peak flow reading in the red zone, what should the nurse do first?
- A. Administer a nebulized bronchodilator
- B. Obtain an arterial blood gas
- C. Start the child on oxygen therapy
- D. Contact the healthcare provider
Correct answer: A
Rationale: The correct action for a 6-year-old child with asthma who is experiencing difficulty breathing, using accessory muscles to breathe, and has a peak flow reading in the red zone is to administer a nebulized bronchodilator first. Nebulized bronchodilators work rapidly to open up the airways, providing immediate relief and improving breathing. This intervention is crucial in addressing the acute respiratory distress the child is facing. Obtaining an arterial blood gas, starting oxygen therapy, or contacting the healthcare provider can be considered after the initial administration of the bronchodilator, as they are not the primary interventions needed to manage the child's acute respiratory distress.
4. What information should be reinforced with the parents of a school-aged child about Reye's syndrome?
- A. Vaccinate your child before the age of 7 against Reye's syndrome.
- B. Keep the child at home for 2 days after the symptoms appear.
- C. Avoid giving any medication containing aspirin during a viral illness.
- D. Do not provide any citrus juices during a bacterial or viral illness.
Correct answer: C
Rationale: The correct answer is C: 'Avoid giving any medication containing aspirin during a viral illness.' It is crucial to advise parents to avoid giving any medication containing aspirin during a viral illness to prevent Reye's syndrome. Reye's syndrome is a rare but serious condition linked to the use of aspirin during viral illnesses in children and teenagers. Choices A, B, and D are incorrect because vaccinating against Reye's syndrome is not applicable as there is no specific vaccine for it, keeping the child at home for 2 days after symptoms appear is not a preventive measure for Reye's syndrome, and avoiding citrus juices is not directly related to the prevention of Reye's syndrome.
5. The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarctation of the aorta that was repaired 4 days after birth. Findings include blood pressure higher in the arms than the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. What pathophysiologic mechanisms support these findings?
- A. The aortic semilunar valve obstructs blood flow into the systemic circulation
- B. The lumen of the aorta reduces the volume of the blood flow to the lower extremities
- C. The pulmonic valve prevents adequate blood volume into the pulmonary circulation
- D. An opening in the atrial septum causes a murmur due to a turbulent left to right shunt
Correct answer: B
Rationale: The findings are consistent with coarctation of the aorta, where narrowing of the aorta leads to decreased blood flow to the lower extremities. This results in higher blood pressure in the arms compared to the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanisms of coarctation of the aorta, which specifically involves narrowing of the aortic lumen reducing blood flow to the lower extremities.
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