HESI LPN
Pediatrics HESI 2023
1. What explanation should be given to a parent about the purpose of a tetanus toxoid injection for their child?
- A. Passive immunity is conferred for life.
- B. Long-lasting active immunity is conferred.
- C. Lifelong active natural immunity is conferred.
- D. Passive natural immunity is conferred temporarily.
Correct answer: B
Rationale: The correct answer is B: 'Long-lasting active immunity is conferred.' Tetanus toxoid injection provides long-lasting active immunity by stimulating the body to produce its own antibodies. Choice A is incorrect because tetanus toxoid injection does not provide passive immunity. Choice C is incorrect because the immunity conferred by the vaccine is not natural but artificially induced. Choice D is incorrect as the immunity provided by the tetanus toxoid injection is active, not passive.
2. The parents of a newborn with phenylketonuria (PKU) need help and support in adhering to specific dietary restrictions. They ask the nurse, “How long will our child have to be on this diet?†How should the nurse respond?
- A. “We are still not sure; you should discuss this with your health care provider.â€
- B. “If your baby does well, foods containing protein can gradually be introduced.â€
- C. “Your child needs to be on this diet at least through adolescence and into adulthood.â€
- D. “This is a lifelong problem, and it is recommended that dietary restrictions must be continued.â€
Correct answer: D
Rationale: The correct answer is D: “This is a lifelong problem, and it is recommended that dietary restrictions must be continued.†Phenylketonuria (PKU) is a metabolic disorder where the body cannot process phenylalanine properly. The diet for PKU must be continued lifelong to prevent cognitive and developmental issues, as phenylalanine buildup can cause irreversible damage. Choice A is incorrect because the nurse should provide information about the lifelong nature of the dietary restrictions for PKU. Choice B is incorrect as it suggests reintroducing protein-containing foods, which is not recommended for individuals with PKU. Choice C is incorrect as it underestimates the duration of the necessary dietary restrictions for PKU.
3. Which observation of the exposed abdomen is most indicative of pyloric stenosis?
- A. abdominal rigidity
- B. substernal retraction
- C. palpable olive-like mass
- D. marked distention of the lower abdomen
Correct answer: C
Rationale: In pyloric stenosis, a palpable olive-like mass in the abdomen is a classic finding. This mass is due to the hypertrophied pyloric muscle. Abdominal rigidity (choice A) is associated with conditions like peritonitis, substernal retraction (choice B) is typically seen in respiratory distress, and marked distention of the lower abdomen (choice D) is more characteristic of conditions like intestinal obstruction rather than pyloric stenosis.
4. A 12-month-old infant has become immunosuppressed during a course of chemotherapy. When preparing the parents for the infant’s discharge, what information should the nurse give concerning the measles, mumps, and rubella (MMR) immunization?
- A. It should not be given until the infant reaches 2 years of age.
- B. Infants who are receiving chemotherapy should not be given these vaccines.
- C. It should be given to protect the infant from contracting any of these diseases.
- D. The parents should discuss this with their health care provider at the next visit.
Correct answer: B
Rationale: The correct answer is B. Live vaccines like MMR should not be given to immunosuppressed infants because their weakened immune systems may not handle the vaccine safely. Choice A is incorrect as delaying the MMR vaccine until the infant reaches 2 years of age does not address the issue of immunosuppression. Choice C is incorrect because administering live vaccines to an immunosuppressed individual could lead to serious complications. Choice D is incorrect as immediate action is required to prevent potential harm to the immunosuppressed infant.
5. A child with a diagnosis of leukemia is receiving chemotherapy. What is the priority nursing intervention?
- A. Monitoring for signs of infection
- B. Providing nutritional support
- C. Monitoring for signs of bleeding
- D. Monitoring for signs of pain
Correct answer: A
Rationale: The priority nursing intervention for a child with leukemia receiving chemotherapy is monitoring for signs of infection. Chemotherapy can suppress the immune system, increasing the risk of infections. Detecting and managing infections promptly is crucial to prevent complications and improve outcomes. Providing nutritional support is important, but infection prevention takes precedence due to the immediate threat it poses to the child's health. Monitoring for signs of bleeding is relevant in leukemia due to decreased platelet count, but infection surveillance is more critical. Monitoring for signs of pain is essential, but addressing infections promptly is the priority to prevent further deterioration in the child's condition.
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