HESI RN
Pediatric HESI
1. The nurse is assessing a 6-month-old infant. Which response requires further evaluation by the nurse?
- A. Has doubled birth weight.
- B. Turns head to locate sound.
- C. Plays peek-a-boo.
- D. Demonstrates startle reflex.
Correct answer: D
Rationale: At 6 months old, the startle reflex should diminish, so its persistence warrants further evaluation by the nurse. Choices A, B, and C are appropriate developmental milestones for a 6-month-old infant. By 6 months, infants typically double their birth weight, exhibit localization of sound by turning their head, and engage in interactive play like peek-a-boo.
2. When should a mother introduce solid foods to her 4-month-old baby girl? The mother states, 'My mother says I should put rice cereal in the baby's bottle now.' The nurse should instruct the mother to introduce solid foods when her child exhibits which behavior?
- A. Stops rooting when hungry
- B. Opens mouth when food comes her way
- C. Awakens once for nighttime feedings
- D. Gives up a bottle for a cup
Correct answer: B
Rationale: The correct answer is B: 'Opens mouth when food comes her way.' This behavior indicates readiness to start trying solid foods. Infants should be introduced to solid foods based on developmental cues, such as showing an interest in food and the ability to accept it. Choices A, C, and D are not indicative of readiness for solid foods. Stopping rooting when hungry is a reflex that may persist beyond the readiness for solids. Awakening for nighttime feedings is a normal behavior for a 4-month-old, and transitioning from a bottle to a cup is a later developmental milestone.
3. The parents of a 3-year-old boy who has Duchenne muscular dystrophy ask, 'How can our son have this disease? We are wondering if we should have any more children.' What information should the nurse provide to parents?
- 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: The correct answer is A. Duchenne muscular dystrophy is an X-linked recessive disorder that primarily affects males. It is crucial for the nurse to explain to the parents that this condition follows an inheritance pattern where the gene mutation responsible for the disorder is located on the X chromosome. Males have only one X chromosome, so if they inherit the mutated gene, they will develop the disease. Females, on the other hand, have two X chromosomes, providing a backup copy that can compensate for the mutation. Understanding this inheritance pattern is essential for family planning decisions, as the risk of passing on the disorder to future children can be explained based on this genetic inheritance. Choices B, C, and D are incorrect because they do not address the genetic basis of Duchenne muscular dystrophy or its inheritance pattern, which is crucial information for the parents in this scenario.
4. The mother of a one-month-old calls the clinic to report that the back of her infant's head is flat. How should the nurse respond?
- A. Turn the infant on the left side braced against the crib when sleeping.
- B. Prop the infant in a sitting position with a cushion when not sleeping.
- C. Place a small pillow under the infant's head while lying on the back.
- D. Position the infant on the stomach occasionally when awake and active.
Correct answer: D
Rationale: Positioning the infant on the stomach occasionally when awake and active can help prevent flat spots on the head. This position allows for more natural movement and prevents prolonged pressure on one area of the head, reducing the risk of developing a flat spot. Turning the infant on the left side braced against the crib when sleeping (choice A) is not recommended as it does not address the issue of flat spots. Propping the infant in a sitting position with a cushion when not sleeping (choice B) may increase the risk of falls and is not suitable for a one-month-old. Placing a small pillow under the infant's head while lying on the back (choice C) should be avoided due to the risk of suffocation and sudden infant death syndrome (SIDS).
5. 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.
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