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. During a follow-up clinical visit, a mother tells the nurse that her 5-month-old son, who had surgical correction for tetralogy of Fallot, has rapid breathing, often takes a long time to eat, and requires frequent rest periods. The infant is not crying while being held, and his growth is in the expected range. Which intervention should the nurse implement?
- A. Stimulate the infant to cry to produce cyanosis
- B. Auscultate the heart and lungs while holding the infant
- C. Evaluate the infant for failure to thrive
- D. Obtain a 12-lead electrocardiogram
Correct answer: B
Rationale: Auscultating the heart and lungs while the infant is held is the most appropriate intervention to assess his current condition. This action allows the nurse to gather important information regarding the cardiovascular and respiratory status of the infant, which is crucial in evaluating his post-surgical recovery and overall well-being. Option A is incorrect as stimulating the infant to cry intentionally is not necessary and could cause distress. Option C is incorrect as the infant's growth is within the expected range, indicating no signs of failure to thrive. Option D is incorrect as obtaining a 12-lead electrocardiogram is not the initial intervention needed in this situation; assessing the heart and lungs through auscultation is more immediate and informative.
3. When screening a 5-year-old for strabismus, what action should the nurse take?
- A. Have the child identify colored patterns on polychromatic cards.
- B. Direct the child through the six cardinal positions of gaze.
- C. Inspect the child for the setting sun sign.
- D. Observe the child for blank, sunken eyes.
Correct answer: B
Rationale: When screening a 5-year-old for strabismus, directing the child through the six cardinal positions of gaze is the most appropriate action. This method helps the nurse to assess eye alignment, which is crucial in identifying any misalignment that may indicate strabismus. Choices A, C, and D are incorrect. Having the child identify colored patterns on polychromatic cards is more related to visual acuity testing rather than strabismus screening. Inspecting the child for the setting sun sign is not a standard method for strabismus screening. Observing the child for blank, sunken eyes is not specific to strabismus assessment.
4. 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.
5. Which assessment finding should the healthcare provider identify as most concerning in a child with acute glomerulonephritis?
- A. Hypertension.
- B. Gross hematuria.
- C. Proteinuria.
- D. Periorbital edema.
Correct answer: A
Rationale: In a child with acute glomerulonephritis, hypertension is the most concerning assessment finding as it can indicate worsening renal function. Hypertension is a common complication of glomerulonephritis and can lead to further kidney damage if not managed promptly. Monitoring and controlling blood pressure is crucial in these cases to prevent complications and preserve renal function. Gross hematuria, proteinuria, and periorbital edema are also common findings in acute glomerulonephritis but hypertension poses a higher risk for renal damage if left uncontrolled.
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