HESI RN
HESI Pediatric Practice Exam
1. The caregiver discovers a 6-month-old infant unresponsive and calls for help. After opening the airway and finding the infant is still not breathing, what action should the caregiver 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: Providing two breaths that make the chest rise is the correct action in this situation. This helps to deliver oxygen to the infant's lungs and body, which is crucial in a situation where the infant is not breathing. Chest rise indicates successful ventilation, and it is an essential step in pediatric resuscitation, especially for infants. Choices A, B, and D are incorrect because palpating the femoral pulse, delivering chest compressions, and feeling the carotid pulse are not the initial actions to take when an infant is not breathing. The priority is to provide effective breaths to establish ventilation.
2. When developing a behavior modification program for an extremely aggressive 10-year-old boy, what should the nurse do first?
- A. Determine what activities, foods, and toys the child enjoys
- B. Evaluate the child’s previous reactions to punishment
- C. Provide the child with positive feedback
- D. Encourage other children on the unit to describe the token system
Correct answer: A
Rationale: The first step in developing a behavior modification program for an aggressive child is to determine what activities, foods, and toys the child enjoys. Understanding the child's preferences allows the nurse to personalize the program, making it more engaging and effective. This approach increases the chances of success in modifying the aggressive behavior. Evaluating previous reactions to punishment (Choice B) may be important but comes later in the process. Providing positive feedback (Choice C) is beneficial but should come after tailoring the program. Encouraging other children to describe the token system (Choice D) is not the initial step; the focus should be on individualizing the program for the specific child first.
3. A 2-year-old child with heart failure (HF) is admitted for replacement of a graft for coarctation of the aorta. Prior to administering the next dose of digoxin (Lanoxin), the nurse obtains an apical heart rate of 128 bpm. What action should the nurse take?
- A. Determine the pulse deficit.
- B. Administer the scheduled dose.
- C. Calculate the safe dose range.
- D. Review the serum digoxin level.
Correct answer: B
Rationale: Administering the scheduled dose is appropriate in this scenario since the heart rate of 128 bpm is within an acceptable range for a 2-year-old child with heart failure. Monitoring for signs of digoxin toxicity is important; however, the immediate action required is to administer the scheduled dose as prescribed based on the heart rate assessment.
4. The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarction 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 correct answer is B. Coarctation of the aorta causes narrowing of the aorta, reducing blood flow to the lower extremities. This narrowing results in higher blood pressure in the arms compared to the lower extremities, along with stronger brachial pulses and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanism of coarctation of the aorta, which specifically leads to reduced blood flow to the lower extremities.
5. Which statement by a school-aged client going to summer camp indicates the best understanding of the mode of transmission of Lyme disease?
- A. I'll cover my mouth with a wet cloth if there's too much dust blowing.
- B. Cuts and scrapes need to be washed out and covered right away.
- C. I'm not going to swim where the water is standing still or feels too hot.
- D. I have to wear long sleeves and pants when we're hiking around the pond.
Correct answer: D
Rationale: The correct answer is D. Wearing long sleeves and pants is an effective measure to prevent tick bites, which can transmit Lyme disease. Ticks are commonly found in wooded areas and tall grass, so covering exposed skin helps reduce the risk of tick bites and subsequently lowers the risk of contracting Lyme disease. Choices A, B, and C do not directly address the mode of transmission of Lyme disease. Option A pertains to respiratory protection against dust, Option B focuses on wound care, and Option C relates to water safety, none of which are directly related to preventing Lyme disease transmission.
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