HESI RN
HESI Practice Test Pediatrics
1. A child admitted with diabetic ketoacidosis is demonstrating Kussmaul respirations. The nurse determines that the increased respiratory rate is a compensatory mechanism for which acid-base alteration?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Respiratory alkalosis.
- D. Metabolic acidosis.
Correct answer: D
Rationale: Kussmaul respirations are deep, rapid breathing patterns observed in metabolic acidosis, such as diabetic ketoacidosis. In this condition, the body tries to compensate for the acidic environment by increasing the respiratory rate to eliminate excess carbon dioxide (CO2) and decrease the acid levels, thereby helping to correct the acid-base imbalance. Therefore, the correct answer is metabolic acidosis.
2. In a hospitalized child receiving IV fluids for dehydration, what is the best indicator that the child’s dehydration is improving?
- A. The child’s urine output increases
- B. The child’s skin turgor is normal
- C. The child’s weight increases
- D. The child’s vital signs are stable
Correct answer: A
Rationale: An increase in urine output is a reliable indicator of improving dehydration in a child. It signifies that the kidneys are functioning better, helping to restore fluid balance in the body. Monitoring urine output is crucial in assessing hydration status and response to treatment. Choices B, C, and D are not the best indicators of improving dehydration. Normal skin turgor is helpful but may not change immediately with improving hydration. Weight increase may reflect retained fluids rather than improved hydration status. Stable vital signs are important but may not always indicate improving dehydration.
3. The healthcare provider is preparing to administer digoxin (Lanoxin) to a 6-month-old infant with heart failure. The healthcare provider notes that the infant’s heart rate is 90 beats per minute. What should the healthcare provider do next?
- A. Administer the medication as prescribed
- B. Hold the medication and notify the healthcare provider
- C. Reassess the heart rate in 30 minutes
- D. Administer half the prescribed dose
Correct answer: B
Rationale: In this scenario, the correct action is to hold the medication and notify the healthcare provider. Digoxin should be withheld if the infant’s heart rate is below 100 beats per minute. Administering digoxin in this situation can further slow down the heart rate in infants with heart failure, leading to potential adverse effects. Reassessing the heart rate in 30 minutes is not the best immediate action to take, as prompt notification and withholding of the medication are crucial. Administering the medication as prescribed or giving half the dose can exacerbate the situation by potentially further lowering the heart rate.
4. Which developmental behavior should the practical nurse identify as normal for a 6-month-old infant?
- A. Rolls over completely.
- B. Creeps on all fours.
- C. Pulls self to a standing position.
- D. Assumes a sitting position independently.
Correct answer: A
Rationale: The correct answer is A: 'Rolls over completely.' By 6 months of age, infants typically achieve the milestone of rolling over completely. This ability demonstrates increasing strength and coordination. Creeping on all fours, pulling self to a standing position, and assuming a sitting position independently are skills that are usually developed at later stages of infancy. Creeping usually occurs around 9-10 months, pulling self to a standing position around 9-12 months, and assuming a sitting position independently around 8 months. Therefore, at 6 months, rolling over completely is the most expected developmental behavior.
5. The nurse is assessing a 3-month-old infant who was brought to the clinic by the parents due to concerns about the infant’s feeding. The parents report that the infant has been vomiting after every feeding and has not gained any weight. What should the nurse assess first?
- A. Evaluate the infant’s feeding technique
- B. Check the infant’s hydration status
- C. Measure the infant’s abdominal circumference
- D. Review the infant’s growth chart
Correct answer: B
Rationale: Assessing hydration status is crucial in an infant who is vomiting frequently, as dehydration can quickly become a serious issue. In this scenario, the infant's inability to retain feeds and lack of weight gain may indicate a potential risk of dehydration, making it essential to prioritize checking the infant's hydration status to prevent complications. Evaluating the feeding technique (Choice A) could be important but is secondary to addressing potential dehydration. Measuring the abdominal circumference (Choice C) and reviewing the growth chart (Choice D) are not the priority in this situation where dehydration is a primary concern.
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