HESI RN
HESI Pediatrics Practice Exam
1. The healthcare provider is caring for a 3-year-old child who is hospitalized with dehydration. The child is now receiving IV fluids and has started to produce urine. What is the best indicator that the child’s dehydration is improving?
- A. The child’s urine output has increased
- B. The child’s skin turgor is normal
- C. The child’s weight has increased
- D. The child’s vital signs are stable
Correct answer: A
Rationale: An increase in urine output is a reliable indicator that the child's hydration status is improving. Adequate urine output signifies that the kidneys are functioning properly and that the body is effectively eliminating waste and excess fluids, indicating improved hydration levels. The other options are not as direct indicators of hydration status. Skin turgor and weight changes can be influenced by various factors, and stable vital signs do not specifically reflect hydration status.
2. While assessing the vital signs of a 10-year-old who underwent a tonsillectomy this morning, the nurse observes the child swallowing every 2-3 minutes. Which assessment should the nurse implement?
- A. Inspect the posterior oropharynx
- B. Assess for teeth clenching or grinding
- C. Touch the tonsillar pillars to stimulate the gag reflex
- D. Ask the child to speak to evaluate a change in voice tone
Correct answer: A
Rationale: Frequent swallowing post-tonsillectomy may indicate bleeding. Inspecting the posterior oropharynx is essential to assess for any signs of bleeding, such as fresh blood or clots, which may necessitate immediate intervention. Option B is incorrect as teeth clenching or grinding is not directly related to the observation of frequent swallowing in this scenario. Option C is incorrect because stimulating the gag reflex is not necessary at this point and may be uncomfortable for the child. Option D is incorrect as evaluating a change in voice tone is not relevant to the situation of observing frequent swallowing.
3. A 3-year-old child is brought to the clinic by the parents who are concerned that the child is not yet potty trained. What is the nurse’s best response?
- A. Most children are potty trained by this age, so you should not be concerned
- B. Every child develops at their own pace. Let’s discuss some strategies to help
- C. Your child may need to be evaluated for developmental delays
- D. It’s best to force your child to use the potty to encourage training
Correct answer: B
Rationale: The correct answer is B because it is important to acknowledge that children develop at different rates. By offering support and discussing strategies for potty training, the nurse can provide the necessary guidance without causing unnecessary concern or pressure on the parents. Choice A is incorrect because it dismisses the parents' concerns. Choice C is incorrect because jumping to the conclusion of developmental delays without further assessment or discussion can cause undue anxiety. Choice D is incorrect because forcing a child to use the potty can lead to resistance and negative associations with potty training.
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. 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. The nurse obtained an apical heart rate of 128 bpm, which is within the expected range for a 2-year-old child. Therefore, there is no immediate concern to withhold the scheduled dose of digoxin. Determining the pulse deficit is not necessary as the heart rate is appropriate. Calculating the safe dose range is not needed as the current dose is within the therapeutic range. Reviewing the serum digoxin level may be indicated later for monitoring but is not urgent based on the heart rate assessment. Administering the scheduled dose of digoxin is the correct action at this time.
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