HESI RN
HESI Pediatrics Practice Exam
1. 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.
2. 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: Crying without tears is a sign of severe dehydration, which is a potentially life-threatening complication in infants with projectile vomiting. Dehydration can rapidly progress in infants, leading to serious consequences if not promptly addressed. The combination of projectile vomiting, listlessness, and absence of tears when crying should raise concerns about severe dehydration and the need for urgent intervention to prevent further complications.
3. What instructions should the nurse provide to the parents about the treatment of head lice in a 3-year-old boy who has been confirmed to have head lice?
- A. Wash the child's bed linens and clothing in hot soapy water.
- B. Dispose of the child's brushes, combs, and other hair accessories.
- C. Rewash the child's hair following a 24-hour isolation period.
- D. Take the child to a hair salon for a shampoo and shorter haircut.
Correct answer: A
Rationale: The correct instruction for the nurse to provide to the parents is to wash the child's bed linens and clothing in hot soapy water. This is essential to eliminate head lice as they can survive on bedding and clothing. It is also important to wash any other items that the child may have used or come into contact with, such as brushes and combs, to prevent reinfestation. Rewashing the child's hair following an isolation period is not necessary, and taking the child to a hair salon for a shampoo and shorter haircut is not a recommended treatment for head lice.
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. A 3-year-old child is admitted to the hospital with severe dehydration. The healthcare provider prescribes an IV infusion of 0.9% normal saline. The nurse notes that the child’s heart rate is 150 beats per minute, and the blood pressure is 90/50 mm Hg. What should the nurse do first?
- A. Administer the IV fluids as prescribed
- B. Notify the healthcare provider
- C. Check the child’s urine output
- D. Reassess the child’s vital signs in 30 minutes
Correct answer: A
Rationale: In a pediatric patient with severe dehydration and signs of compromised hemodynamics such as tachycardia (heart rate of 150 bpm) and hypotension (blood pressure of 90/50 mm Hg), the priority intervention is to administer IV fluids as prescribed. Immediate fluid resuscitation is essential to restore hydration, improve perfusion, and stabilize the child's vital signs. While it's important to monitor urine output, initiating fluid resuscitation takes precedence in this situation. Notifying the healthcare provider can cause a delay in critical intervention, and waiting to reassess vital signs in 30 minutes can be detrimental in a child with severe dehydration and compromised hemodynamics.
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