HESI RN
HESI Pediatrics Practice Exam
1. A mother brings her 2-year-old son to the clinic because he has been crying and pulling on his earlobe for the past 12 hours. The child’s oral temperature is 101.2°F. Which intervention should the nurse implement?
- A. Ask the mother if the child has had a runny nose
- B. Cleanse purulent exudate from the affected ear canal
- C. Apply a topical antibiotic to the periauricle area
- D. Provide parent education to prevent recurrence
Correct answer: A
Rationale: In a child with ear pain and fever, asking about a runny nose is important to assess if the ear pain is associated with a respiratory infection, such as otitis media. This information can guide further assessment and treatment decisions. Choice B is incorrect because cleansing purulent exudate should be done by a healthcare provider, not the nurse. Choice C is incorrect as topical antibiotics should only be applied under healthcare provider's orders. Choice D is not the priority at this moment, as the immediate concern is assessing the association between the ear pain and a possible respiratory infection.
2. The healthcare provider is evaluating the effects of thyroid therapy used to treat a 5-month-old with hypothyroidism. Which behavior indicates that the treatment has been effective?
- A. Laughs readily, turns from back to side.
- B. Has strong Moro and tonic neck reflexes.
- C. Keeps fists clenched, opens hands when grasping an object.
- D. Can lift head, but not chest when lying on abdomen.
Correct answer: A
Rationale: The ability to laugh readily and turn from back to side indicates the effectiveness of thyroid therapy and normal development in a 5-month-old. These behaviors suggest improved muscle tone and motor skills, which are positive outcomes of thyroid hormone replacement therapy for hypothyroidism. Choices B, C, and D describe developmental milestones that are not specific indicators of the effectiveness of thyroid therapy in treating hypothyroidism in a 5-month-old.
3. 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.
4. What information should the nurse provide to parents of a 3-year-old boy with Duchenne muscular dystrophy who inquire about the disease and future children?
- A. This is an inherited X-linked recessive disorder, which primarily affects male children in the family
- B. The striated muscle groups of males can be impacted by a lack of the protein dystrophin in their mothers
- C. The male infant had a viral infection that went unnoticed and untreated so muscle damage was incurred
- D. Birth trauma with a breech vaginal birth causes damage to the spinal cord, thus weakening the muscles
Correct answer: A
Rationale: Duchenne muscular dystrophy is an X-linked recessive disorder caused by mutations in the DMD gene on the X chromosome. This disorder primarily affects males because they have one X chromosome, inherited from their mothers, who may be carriers of the mutated gene. Females have two X chromosomes, providing a protective effect as the normal gene on one X chromosome can compensate for the mutated gene on the other. Therefore, the nurse should explain to the parents that Duchenne muscular dystrophy is an inherited X-linked recessive disorder, which is why their son has the disease and why there is a risk of passing it on to future sons. Choice B is incorrect as it inaccurately implies that the lack of dystrophin in mothers impacts their sons' muscle groups. Choice C is incorrect as it suggests a viral infection caused the muscle damage, which is not the case with Duchenne muscular dystrophy. Choice D is incorrect as it attributes the muscle weakness to birth trauma instead of the genetic nature of the disorder.
5. The healthcare provider is preparing to administer a scheduled dose of digoxin to a 4-year-old child with heart failure. The healthcare provider notes that the child’s heart rate is 70 beats per minute. What should the healthcare provider do next?
- A. Administer the medication as prescribed
- B. Hold the medication and notify the healthcare provider
- C. Recheck the heart rate in 30 minutes
- D. Administer half of the prescribed dose
Correct answer: B
Rationale: In pediatric patients, digoxin administration is guided by the heart rate. If the child's heart rate is below the established threshold, which is typically 90-100 beats per minute in a 4-year-old, the medication should be withheld, and the healthcare provider should be notified for further evaluation and instructions. Choice A is incorrect because administering the medication when the heart rate is low can lead to adverse effects. Rechecking the heart rate in 30 minutes (Choice C) may delay necessary intervention if the heart rate remains low. Administering half of the prescribed dose (Choice D) is not recommended without healthcare provider guidance.
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