HESI RN
HESI Pediatric Practice Exam
1. 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.
2. The nurse is assessing a 4-year-old child who is brought to the clinic for a routine checkup. The child’s parent reports that the child has been more irritable and less active over the past week. The nurse notes a petechial rash on the child’s trunk and extremities. What should the nurse do first?
- A. Ask the parent about recent exposure to contagious diseases
- B. Review the child’s immunization record
- C. Measure the child’s temperature
- D. Notify the healthcare provider immediately
Correct answer: D
Rationale: In this scenario, the child's presentation with irritability, decreased activity, and a petechial rash raises concern for a serious condition like meningitis. Petechial rash can be indicative of meningitis or other critical illnesses. Therefore, the nurse's priority should be to notify the healthcare provider immediately to ensure prompt evaluation and appropriate management. Asking about recent exposure to contagious diseases may be relevant later but is not the most urgent action. Reviewing the child's immunization record and measuring the temperature can provide valuable information but should not take precedence over the need to address the potential serious condition indicated by the petechial rash.
3. A mother brings her 3-week-old infant to the clinic because the baby vomits after eating and always seems hungry. Further assessment indicates that the infant’s vomiting is projectile, and the child seems listless. Which additional assessment finding indicates the possibility of a life-threatening complication?
- A. Irregular palpable pulse
- B. Hyperactive bowel sounds
- C. Underweight for age
- D. Crying without tears
Correct answer: D
Rationale: In this scenario, the infant presenting with vomiting, lethargy, and projectile vomiting indicates a potential serious condition. Crying without tears is a sign of dehydration, a critical condition that can lead to life-threatening complications in infants. Dehydration can rapidly worsen an infant's condition, making prompt intervention crucial to prevent further complications. Irregular palpable pulse (Choice A) could indicate a cardiovascular issue but is less immediately life-threatening in this context. Hyperactive bowel sounds (Choice B) are more indicative of gastrointestinal issues rather than a life-threatening complication. Underweight for age (Choice C) may be concerning for growth-related issues but does not directly indicate a life-threatening complication like dehydration does.
4. What is the priority action for a 2-year-old child with croup presenting with a barking cough and stridor?
- A. Administer a corticosteroid
- B. Obtain a throat culture
- C. Administer nebulized epinephrine
- D. Place the child in an upright position
Correct answer: C
Rationale: The priority action for a 2-year-old child with croup and stridor is to administer nebulized epinephrine. Nebulized epinephrine helps reduce airway swelling, alleviate symptoms, and improve breathing by causing vasoconstriction and reducing upper airway edema. Administering a corticosteroid may be done but is not the priority in this scenario. Obtaining a throat culture is not necessary for the immediate management of croup. Placing the child in an upright position can aid in breathing but is not the priority action when the child is presenting with stridor.
5. The mother of a 4-month-old asks the nurse for advice in preventing diaper rash. What suggestion should the nurse provide?
- A. At diaper change generously powder the baby's diaper area with talcum powder to promote dryness.
- B. Wash the diaper area every 2 hours with soap and water to help prevent skin breakdown.
- C. Use a barrier cream, such as zinc oxide, which does not have to be completely removed with each diaper change.
- D. Place a cloth diaper inside the disposable diaper for overnight periods when increased wearing time is likely.
Correct answer: C
Rationale: Using a barrier cream like zinc oxide protects the skin and helps prevent diaper rash.
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