HESI RN
HESI Pediatrics Practice Exam
1. 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.
2. A 2-year-old child with a history of frequent ear infections is brought to the clinic by the parents who are concerned about the child’s hearing. What should the nurse do first?
- A. Ask the parents about the child’s speech development
- B. Perform a hearing test
- C. Inspect the child’s ears for drainage
- D. Refer the child to an audiologist
Correct answer: C
Rationale: The most appropriate initial action for the nurse to take is to inspect the child's ears for drainage. This step can provide immediate information on the presence of infection or fluid, which could be impacting the child's hearing. By assessing for drainage, the nurse can gather valuable initial data to determine the next course of action, such as further evaluation or treatment. Asking about speech development or referring to an audiologist would be secondary steps after assessing the physical condition of the ears. Performing a hearing test would also be premature without first examining the ears for any visible issues.
3. A 9-year-old child with a history of type 1 diabetes is brought to the clinic for a check-up. The nurse notes that the child's hemoglobin A1c is 8.5%. What is the most appropriate action for the nurse to take?
- A. Increase the child’s insulin dose
- B. Review the child’s dietary habits and insulin administration technique
- C. Discuss the possibility of switching to oral hypoglycemics
- D. Schedule a follow-up appointment in three months
Correct answer: B
Rationale: A hemoglobin A1c of 8.5% indicates suboptimal diabetes control. The most appropriate action for the nurse in this scenario is to review the child’s dietary habits and insulin administration technique. This approach can help identify potential areas for improvement and optimize diabetes management, aiming to lower the hemoglobin A1c levels towards the target range. Increasing the child’s insulin dose (Choice A) without addressing dietary habits and administration technique may not lead to better control and can increase the risk of hypoglycemia. Switching to oral hypoglycemics (Choice C) is not appropriate for type 1 diabetes management. Scheduling a follow-up appointment in three months (Choice D) without intervening to improve diabetes control is not the best immediate action.
4. An adolescent female who is leaning forward with her hands on her knees to breathe tells the practical nurse that she has been using triamcinolone (Azmacort) inhalation aerosol before coming to the clinic. Which action should the PN implement?
- A. Obtain vital signs and assess breath sounds for wheezing.
- B. Collect a blood sample for white blood cell count.
- C. Give the client a nebulizer breathing treatment.
- D. Administer another dose of Azmacort.
Correct answer: A
Rationale: When a patient presents with breathing difficulties, the first action should be to assess vital signs and breath sounds to evaluate the severity of the condition. This assessment will provide crucial information to determine the appropriate course of action and treatment. Collecting a blood sample for a white blood cell count, giving a nebulizer treatment, or administering another dose of Azmacort would not be the initial priority in this situation. Therefore, option A is the correct choice as it focuses on assessing the patient's respiratory status to guide further interventions.
5. A mother brings her 3-month-old infant to the clinic because the baby does not sleep through the night. Which finding is most significant in planning care for this family?
- A. The mother is a single parent and lives with her parents
- B. The mother states the baby is irritable during feedings
- C. The infant’s formula has been changed twice
- D. The diaper area shows severe skin breakdown
Correct answer: D
Rationale: Severe skin breakdown in the diaper area is a significant finding indicating a potential health issue that needs immediate attention. It may be a sign of a skin condition, such as a diaper rash, which can cause discomfort and pain for the infant. Addressing this concern promptly is crucial to prevent further complications and ensure the baby's well-being. The other choices may also be important in assessing the overall situation of the family, but in terms of immediate care for the infant, the severe skin breakdown takes priority.
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