HESI RN
HESI Practice Test Pediatrics
1. A 5-year-old child with leukemia is receiving chemotherapy. The nurse notes that the child’s white blood cell count is low. What is the nurse’s priority intervention?
- A. Administer antibiotics as prescribed
- B. Place the child in protective isolation
- C. Encourage the child to eat a balanced diet
- D. Teach the parents about infection prevention
Correct answer: B
Rationale: The priority intervention for a 5-year-old child with leukemia receiving chemotherapy and having a low white blood cell count is to place the child in protective isolation. This intervention helps reduce the risk of infection, which is crucial in this immunocompromised state. Protective isolation aims to limit the child's exposure to pathogens and promote their safety during a period of increased vulnerability to infections.
2. 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.
3. The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarctation of the aorta that was repaired 4 days after birth. Findings include blood pressure higher in the arms than the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. What pathophysiologic mechanisms support these findings?
- A. The aortic semilunar valve obstructs blood flow into the systemic circulation
- B. The lumen of the aorta reduces the volume of the blood flow to the lower extremities
- C. The pulmonic valve prevents adequate blood volume into the pulmonary circulation
- D. An opening in the atrial septum causes a murmur due to a turbulent left to right shunt
Correct answer: B
Rationale: The findings are consistent with coarctation of the aorta, where narrowing of the aorta leads to decreased blood flow to the lower extremities. This results in higher blood pressure in the arms compared to the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanisms of coarctation of the aorta, which specifically involves narrowing of the aortic lumen reducing blood flow to the lower extremities.
4. A 4-year-old child is brought to the clinic with complaints of ear pain and fever. The practical nurse suspects otitis media. Which symptom supports this suspicion?
- A. Clear nasal discharge.
- B. Dry, hacking cough.
- C. Tugging at the ear.
- D. Sore throat.
Correct answer: C
Rationale: Tugging at the ear is a common symptom in children with otitis media. It often indicates discomfort or pain in the ear, suggesting inflammation or infection in the middle ear. This behavior is frequently observed in young children who are unable to express their discomfort verbally, making it a significant clinical indicator for otitis media in this age group. Clear nasal discharge (Choice A) is more indicative of a cold or allergies, while a dry, hacking cough (Choice B) is not typically associated with otitis media. Although a sore throat (Choice D) can sometimes accompany ear infections, tugging at the ear is a more specific and reliable symptom in this case.
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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