HESI RN
HESI Practice Test Pediatrics
1. 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.
2. The parents of a 15-month-old boy tell the nurse that they are concerned because their son brings his spoon to his mouth but does not turn it over. What action should the nurse implement first?
- A. Discuss the possibility of a referral to a specialist
- B. Question the parents about their concern
- C. Advise the parents on proper spoon handling techniques for the child
- D. Recommend extending mealtimes to allow the child to finish eating
Correct answer: B
Rationale: The initial action for the nurse is to question the parents about their concerns. By doing so, the nurse can gather more information to understand the situation better. This helps in determining if the child's behavior is within normal development or if further action or referrals are necessary. Choice A is incorrect as it jumps to a specialist referral without fully assessing the situation first. Choice C is also incorrect because assuming the parents need advice on proper spoon handling techniques may not be the case. Choice D is incorrect as it does not address the core concern raised by the parents.
3. The nurse is caring for a 3-year-old child who has been recently diagnosed with cystic fibrosis. Which discharge instruction by the nurse is most important to promote pulmonary function?
- A. Chest physiotherapy should be performed before meals and at bedtime
- B. Cough suppressants can be used up to four times a day for relief
- C. Oxygen should be given through a nasal cannula between 4-6 L/min
- D. Exercise is discouraged in order to preserve pulmonary vital capacity
Correct answer: B
Rationale: In cystic fibrosis, thick mucus obstructs the airways, making it difficult to clear from the lungs. Cough suppressants can help reduce the discomfort associated with persistent coughing, allowing the child to cough more effectively to clear the mucus, thus promoting pulmonary function. Chest physiotherapy, not exercise, helps mobilize the mucus. Oxygen therapy may be needed but is not the most important for promoting pulmonary function in this case.
4. The healthcare provider is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant's clinical picture?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Metabolic acidosis.
- D. Respiratory alkalosis.
Correct answer: A
Rationale: Pyloric stenosis leads to obstruction at the outlet of the stomach, causing frequent vomiting and loss of stomach acids. This results in a loss of hydrochloric acid and hydrogen ions, leading to metabolic alkalosis due to an increase in serum bicarbonate levels. Therefore, the correct answer is metabolic alkalosis. Choice B, respiratory acidosis, is incorrect as it is not typically associated with pyloric stenosis. Choice C, metabolic acidosis, is incorrect because the loss of stomach acids in pyloric stenosis leads to metabolic alkalosis, not acidosis. Choice D, respiratory alkalosis, is also incorrect as it is not the usual consequence of pyloric stenosis.
5. After reinforcing information on treating a sprained ankle, what statement by the adolescent indicates to the practical nurse that further instruction is needed?
- A. Keep the leg elevated when sitting.
- B. Wrap the ankle in an elastic bandage for support.
- C. Apply warm compresses to the ankle for the first 24 hours.
- D. Put an ice pack on the ankle, alternating 30 minutes on and 30 minutes off.
Correct answer: C
Rationale: The correct answer is C. Applying warm compresses to a sprained ankle within the first 24 hours is incorrect as it can increase swelling and inflammation. Instead, cold compresses are recommended to help reduce swelling and pain. Option A, keeping the leg elevated, helps in reducing swelling. Option B, wrapping the ankle in an elastic bandage, provides support. Option D, using an ice pack in intervals, is effective in reducing swelling and pain. Therefore, the statement about applying warm compresses indicates the need for further instruction.
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