HESI RN
HESI Pediatrics Practice Exam
1. A 10-year-old child is admitted to the hospital with a diagnosis of acute glomerulonephritis. The nurse notes that the child has edema and elevated blood pressure. What is the nurse’s priority action?
- A. Administer antihypertensive medication as prescribed
- B. Monitor the child’s urine output
- C. Elevate the child’s legs to reduce edema
- D. Restrict the child’s fluid intake
Correct answer: A
Rationale: In a child with acute glomerulonephritis presenting with edema and elevated blood pressure, the priority action for the nurse is to administer antihypertensive medication as prescribed. Managing blood pressure is essential to prevent further complications associated with the condition, such as worsening kidney function and cardiovascular strain. Monitoring urine output is important but not the priority over managing elevated blood pressure. Elevating the child's legs may help with edema but addressing the elevated blood pressure takes precedence. Fluid intake restriction may be necessary in some cases, but it is not the immediate priority when managing acute glomerulonephritis with edema and hypertension.
2. 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.
3. The heart rate for a 3-year-old with a congenital heart defect has steadily decreased over the last few hours, now it's 76 bpm, the previous reading 4 hours ago was 110 bpm. Which additional finding should be reported immediately to a healthcare provider?
- A. Oxygen saturation 94%.
- B. RR of 25 breaths/minute.
- C. Urine output 20 mL/hr.
- D. BP 70/40.
Correct answer: D
Rationale: A significant drop in heart rate and blood pressure should be reported immediately as it may indicate worsening of the congenital heart defect. A decrease in blood pressure may suggest poor cardiac output and compromised perfusion, requiring urgent medical attention. The other findings (oxygen saturation of 94%, RR of 25 breaths/minute, and urine output of 20 mL/hr) are within normal ranges for a 3-year-old and do not indicate immediate deterioration of the heart defect.
4. A 4-month-old girl is brought to the clinic by her mother because she has had a cold for 2 or 3 days and woke up this morning with a hacking cough and difficulty breathing. Which additional assessment finding should alert the nurse that the child is in acute respiratory distress?
- A. Bilateral bronchial breath sounds.
- B. Diaphragmatic breathing.
- C. A resting respiratory rate of 35 breaths per minute.
- D. Flaring of the nares.
Correct answer: D
Rationale: Flaring of the nares is a classic sign of acute respiratory distress in infants. It indicates increased work of breathing and is a visible cue that the child is struggling to breathe. This finding should alert healthcare providers to the severity of the respiratory distress and the need for prompt intervention to support the child's breathing. Choices A, B, and C are incorrect. Bilateral bronchial breath sounds are associated with conditions like pneumonia, but they do not specifically indicate acute respiratory distress. Diaphragmatic breathing is a normal breathing pattern and not a sign of distress. A resting respiratory rate of 35 breaths per minute is within the expected range for a 4-month-old infant and does not necessarily indicate acute respiratory distress.
5. A child with a fever of 39°C (102.2°F) and a sore throat is brought to the clinic. The practical nurse suspects the child has streptococcal pharyngitis. Which diagnostic test should the practical nurse prepare the child for?
- A. Rapid antigen detection test.
- B. Throat culture.
- C. Complete blood count (CBC).
- D. Chest X-ray.
Correct answer: A
Rationale: A rapid antigen detection test is the appropriate diagnostic test for suspected streptococcal pharyngitis. This test is commonly used due to its quick results, helping in the prompt diagnosis and appropriate treatment of the condition. It specifically detects the presence of streptococcal antigens in the throat, aiding in confirming the diagnosis and guiding the healthcare provider in determining the most suitable treatment plan. Throat culture (Choice B) is a confirmatory test but is not as rapid as the rapid antigen detection test. Complete blood count (Choice C) and Chest X-ray (Choice D) are not specific tests for streptococcal pharyngitis and would not aid in confirming the diagnosis.
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