HESI RN
HESI Pediatric Practice Exam
1. The nurse is measuring the frontal occipital circumference (FOC) of a 3-month-old infant and notes that the FOC has increased by 5 inches since birth, and the child's head appears large in relation to body size. Which action is most important for the nurse to take next?
- A. Measure the infant's head-to-toe length.
- B. Palpate the anterior fontanel for tension and bulging.
- C. Observe the infant for sunken eyes.
- D. Plot the measurement on the infant's growth chart.
Correct answer: B
Rationale: Palpating the anterior fontanel for tension and bulging is crucial in assessing for increased intracranial pressure. In this scenario, the infant's large head size and rapid increase in the frontal occipital circumference raise concerns for potential issues such as hydrocephalus. Measuring the head-to-toe length (Choice A) is not the priority when assessing for increased intracranial pressure. Observing for sunken eyes (Choice C) is more indicative of dehydration rather than increased intracranial pressure. While plotting the measurement on the infant's growth chart (Choice D) is important for tracking growth, it does not address the immediate concern of assessing for increased intracranial pressure.
2. A mother brings her 3-month-old infant to the clinic, concerned about frequent vomiting after feeding. The practical nurse (PN) suspects gastroesophageal reflux (GER). Which recommendation should the PN provide to the mother?
- A. Feed the infant in a prone position.
- B. Provide larger, less frequent feedings.
- C. Keep the infant upright for 30 minutes after feeding.
- D. Offer only formula thickened with rice cereal.
Correct answer: C
Rationale: The correct recommendation for reducing symptoms of gastroesophageal reflux (GER) in infants is to keep the infant upright for 30 minutes after feeding. This position helps prevent the backflow of stomach contents, alleviating symptoms of reflux. Placing the infant in a prone position or providing larger, less frequent feedings may worsen symptoms by increasing the likelihood of regurgitation. Offering only formula thickened with rice cereal is not the first-line intervention for GER and should not be recommended initially.
3. Which statement by a school-aged client going to summer camp indicates the best understanding of the mode of transmission of Lyme disease?
- A. I'll cover my mouth with a wet cloth if there's too much dust blowing.
- B. Cuts and scrapes need to be washed out and covered right away.
- C. I'm not going to swim where the water is standing still or feels too hot.
- D. I have to wear long sleeves and pants when we're hiking around the pond.
Correct answer: D
Rationale: The correct answer is D. Wearing long sleeves and pants is an effective measure to prevent tick bites, which can transmit Lyme disease. Ticks are commonly found in wooded areas and tall grass, so covering exposed skin helps reduce the risk of tick bites and subsequently lowers the risk of contracting Lyme disease. Choices A, B, and C do not directly address the mode of transmission of Lyme disease. Option A pertains to respiratory protection against dust, Option B focuses on wound care, and Option C relates to water safety, none of which are directly related to preventing Lyme disease transmission.
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 nurse is assessing a 4-month-old infant who has just received routine immunizations. The mother reports that the baby has been fussy and has a low-grade fever since the immunizations. What is the best response by the nurse?
- A. These are common side effects and should resolve within a few days
- B. Your baby may be having an allergic reaction to the immunizations
- C. You should bring your baby to the clinic immediately for evaluation
- D. You should give your baby aspirin to help with the fever
Correct answer: A
Rationale: The correct response by the nurse is to reassure the mother that fussiness and low-grade fever are common side effects of immunizations in infants and should resolve within a few days. It is essential to educate the mother about these expected reactions to alleviate her concerns. Choice B is incorrect because allergic reactions to immunizations usually present with more severe symptoms such as difficulty breathing or swelling. Choice C is not warranted unless there are concerning symptoms present. Choice D is inappropriate as aspirin is contraindicated in infants due to the risk of Reye's syndrome.
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