HESI RN
HESI Practice Test Pediatrics
1. When instilling ear drops in a 2-year-old child, how should the practical nurse (PN) position the earlobe to straighten the external auditory canal?
- A. Up and back.
- B. Down and back.
- C. Up and forward.
- D. Down and forward.
Correct answer: B
Rationale: When administering ear drops to a child under three years old, it is essential to pull the earlobe down and back. This positioning helps straighten the external auditory canal, facilitating the proper administration of the ear drops. Pulling the earlobe down and back in young children aims to ensure that the medication reaches the intended area for optimal effectiveness.
2. The nurse determines that an infant admitted for surgical repair of an inguinal hernia voids a urinary stream from the ventral surface of the penis. What action should the nurse take?
- A. Document the finding
- B. Palpate scrotum for testicular descent
- C. Assess for bladder distension
- D. Auscultate bowel sounds
Correct answer: A
Rationale: The correct action for the nurse to take in this situation is to document the finding. The infant voiding a urinary stream from the ventral surface of the penis suggests hypospadias, a condition where the urethral opening is on the underside of the penis. This finding is crucial information that needs to be documented for further evaluation. Palpating the scrotum for testicular descent, assessing for bladder distension, and auscultating bowel sounds are not appropriate actions based on the presented scenario and do not address the specific concern of the urinary stream location.
3. A child who weighs 25 kg is receiving IV ampicillin at a dose of 300 mg/kg/24 hours in equally divided doses every 4 hours. How many milligrams should the nurse administer to the child for each dose?
- A. 1875 mg
- B. 625 mg
- C. 2000 mg
- D. 1500 mg
Correct answer: A
Rationale: To calculate the correct dose for each administration, you first need to find the total daily dose: 300 mg/kg * 25 kg = 7500 mg/day. Since this total dose is divided into equally divided doses every 4 hours, there are 6 doses in 24 hours. Therefore, 7500 mg ÷ 6 doses = 1250 mg per dose. The nurse should administer 1250 mg every 4 hours, resulting in a total of 1875 mg for each dose in a 24-hour period. Choice A, 1875 mg, is the correct answer. Choice B, 625 mg, is incorrect as it does not consider the total daily dose and the frequency of administration. Choice C, 2000 mg, is incorrect as it is not the calculated dosage based on the given parameters. Choice D, 1500 mg, is also incorrect as it does not reflect the correct dosage calculation for each dose.
4. What should the nurse do first for a 6-year-old with asthma showing a prolonged expiratory phase, wheezing, and 35% of personal best peak expiratory flow rate (PEFR)?
- A. Administer a prescribed bronchodilator.
- B. Encourage the child to cough and take deep breaths.
- C. Report the findings to the healthcare provider.
- D. Identify the triggers that precipitated this attack.
Correct answer: A
Rationale: Administering a bronchodilator is the priority action in managing an acute asthma exacerbation in a child. Bronchodilators help to relax the muscles around the airways, opening them up and improving breathing. This intervention aims to address the immediate breathing difficulty and should be done promptly to provide relief for the child. Encouraging coughing and deep breaths (choice B) may worsen the child's condition by further constricting the airways. Reporting findings to the healthcare provider (choice C) is important but not the immediate priority in this acute situation. Identifying triggers (choice D) is crucial for long-term asthma management but is not the first step when managing an acute exacerbation.
5. A child with pertussis is receiving azithromycin (Zithromax Injection) IV. Which intervention is most important for the nurse to include in the child’s plan of care?
- A. Obtain vital signs to monitor for fluid overload
- B. Change IV site dressing every 3 days and as needed
- C. Monitor for signs of facial swelling or urticaria
- D. Assess for abdominal pain and vomiting
Correct answer: C
Rationale: Monitoring for signs of an allergic reaction, such as facial swelling or urticaria, is crucial when administering antibiotics like azithromycin. It is important to watch for these signs to promptly identify and manage any potential adverse reactions during the course of treatment.
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