HESI RN
HESI Pediatrics Practice Exam
1. The child is 3 years old and is 2 hours postop from a cardiac catheterization via the right femoral artery. Which assessment finding indicates arterial obstruction?
- A. Blood pressure is decreasing, and the pulse is rapid and irregular.
- B. The right foot feels cool to the touch and appears pale and blanched.
- C. The pulse distal to the femoral artery is weaker in the left foot than the right foot.
- D. The pressure dressing at the right femoral area is damp and oozing blood.
Correct answer: B
Rationale: A cool, pale, and blanched foot is indicative of arterial obstruction, leading to poor blood flow. This finding requires immediate intervention to prevent further complications such as tissue damage or necrosis. Monitoring for signs of arterial compromise, such as color changes, temperature, and capillary refill, is crucial in detecting and managing vascular complications post-cardiac catheterization. Choices A, C, and D do not directly indicate arterial obstruction. While a decreasing blood pressure and rapid, irregular pulse may suggest compromise, these findings are more nonspecific. A weaker pulse distal to the femoral artery indicates reduced perfusion but not necessarily arterial obstruction. Finally, a damp, oozing pressure dressing suggests a dressing issue rather than arterial obstruction.
2. A child with cystic fibrosis is being discharged home with pancreatic enzyme replacement therapy. What information should the practical nurse reinforce with the parents?
- A. Give the enzymes after meals.
- B. Mix the enzymes with hot food or drinks.
- C. Enzymes should be taken before or with meals.
- D. Avoid giving enzymes with any food or drink.
Correct answer: C
Rationale: The correct answer is C: 'Enzymes should be taken before or with meals.' Pancreatic enzymes should be taken before or with meals to assist with digestion in children with cystic fibrosis. This timing helps maximize the effectiveness of the enzymes in breaking down nutrients from food. Giving the enzymes after meals (choice A) may not provide the necessary support for digestion. Mixing the enzymes with hot food or drinks (choice B) is not recommended as it may affect the enzymes' efficacy. Avoiding giving enzymes with any food or drink (choice D) is incorrect as enzymes need to be taken in conjunction with meals to aid in digestion.
3. A child with sickle cell anemia is being treated for a vaso-occlusive crisis. Which intervention should the practical nurse (PN) implement?
- A. Apply cold packs to painful areas.
- B. Encourage increased fluid intake.
- C. Administer high doses of vitamin C.
- D. Provide low-calorie meals.
Correct answer: B
Rationale: Encouraging increased fluid intake is crucial in managing vaso-occlusive crises in patients with sickle cell anemia. Dehydration can worsen these crises, so adequate hydration is essential to prevent complications and improve outcomes. Applying cold packs to painful areas may exacerbate vaso-occlusive crises by causing vasoconstriction. Administering high doses of vitamin C is not directly indicated for vaso-occlusive crises in sickle cell anemia. Providing low-calorie meals is not the priority during a vaso-occlusive crisis; maintaining adequate nutrition is important, but hydration takes precedence in this situation.
4. When developing a behavior modification program for an extremely aggressive 10-year-old boy, what should the nurse do first?
- A. Determine what activities, foods, and toys the child enjoys
- B. Evaluate the child’s previous reactions to punishment
- C. Provide the child with positive feedback
- D. Encourage other children on the unit to describe the token system
Correct answer: A
Rationale: The first step in developing a behavior modification program for an aggressive child is to determine what activities, foods, and toys the child enjoys. Understanding the child's preferences allows the nurse to personalize the program, making it more engaging and effective. This approach increases the chances of success in modifying the aggressive behavior. Evaluating previous reactions to punishment (Choice B) may be important but comes later in the process. Providing positive feedback (Choice C) is beneficial but should come after tailoring the program. Encouraging other children to describe the token system (Choice D) is not the initial step; the focus should be on individualizing the program for the specific child first.
5. 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.
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