HESI RN
HESI Pediatrics Practice Exam
1. A 12-year-old male is brought to the clinic after falling during a skateboarding trick. The child's vital signs are heart rate 135 beats/minute, respirations 20 breaths/minute, and blood pressure 90/60. Which finding should the practical nurse report to the healthcare provider immediately?
- A. The client complains of his back being sore.
- B. Capillary refill is less than 2 seconds.
- C. Blood pressure is 94/68.
- D. Peripheral pulses are weak and rapid.
Correct answer: D
Rationale: In this scenario, the 12-year-old male with a heart rate of 135 beats/minute, respirations of 20 breaths/minute, and blood pressure of 90/60 after falling during a skateboarding trick exhibits signs of shock. Weak and rapid peripheral pulses are concerning as they may indicate decreased cardiac output and tissue perfusion, which are signs of shock. This finding should be reported to the healthcare provider immediately for further evaluation and intervention to prevent potential complications. The other choices are less urgent. Complaints of back soreness (choice A) could be related to musculoskeletal injury. Capillary refill less than 2 seconds (choice B) is within the normal range, indicating adequate peripheral perfusion. A blood pressure of 94/68 (choice C) is slightly higher than the initial reading and may be compensatory in response to the fall and shock state.
2. 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.
3. 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.
4. A two-year-old child with heart failure 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 as the heart rate of 128 bpm falls within the acceptable range for a two-year-old child with heart failure. It indicates that the child may benefit from the therapeutic effects of digoxin. Monitoring the heart rate closely after administration is essential to ensure the medication's effectiveness and safety. Determining the pulse deficit (Choice A) is not necessary in this situation as the heart rate is within the acceptable range. Calculating the safe dose range (Choice C) is not needed since the heart rate is already within the expected parameters. Reviewing the serum digoxin level (Choice D) is not the immediate action required in this case where the heart rate is within the normal range.
5. The nurse is planning for a 5-month-old with gastroesophageal reflux disease whose weight has decreased by 3 ounces since the last clinic visit one month ago. To increase caloric intake and decrease vomiting, what instructions should the nurse provide this mother?
- A. Give small amounts of baby food with each feeding.
- B. Thicken formula with cereal for each feeding.
- C. Dilute the child's formula with equal parts of water.
- D. Offer 10% dextrose in water between most feedings.
Correct answer: B
Rationale: Thickening formula with cereal is a recommended intervention for infants with gastroesophageal reflux disease (GERD) to help reduce vomiting and increase caloric intake. This modification can help the infant keep the food down better, reducing reflux symptoms while providing adequate nutrition. Giving small amounts of baby food with each feeding (Choice A) is not recommended for a 5-month-old with GERD as it may exacerbate symptoms. Diluting the child's formula with equal parts of water (Choice C) can lead to inadequate nutrition and is not advisable. Offering 10% dextrose in water between most feedings (Choice D) is not appropriate for managing GERD in infants and does not address the underlying issue of reflux.
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