HESI LPN
Pediatrics HESI 2023
1. The nurse volunteering at a homeless shelter to assist families with children identifies homelessness as a risk preventing families from achieving positive outcomes in life. What family theory encompasses this approach to assessing family dynamics?
- A. Duvall's developmental theory
- B. Friedman's structural functional theory
- C. Von Bertalanffy's general system theory applied to families
- D. Resiliency model of family stress, adjustment, and adaptation
Correct answer: D
Rationale: The Resiliency model of family stress, adjustment, and adaptation focuses on identifying the elements of risks and protective factors that help families achieve positive outcomes. In this scenario, the nurse recognizing homelessness as a risk aligns with the resiliency model, which emphasizes how families cope and adapt in the face of stressors. Duvall's theory primarily focuses on family life cycle stages, Friedman's theory emphasizes the roles and functions within a family structure, and Von Bertalanffy's theory looks at families as complex systems rather than specifically addressing resilience in the face of stressors.
2. A 2-year-old child is admitted to the hospital with a diagnosis of Kawasaki disease. What is the primary goal of therapy during the acute phase?
- A. Preventing coronary artery aneurysms
- B. Reducing fever
- C. Improving cardiac function
- D. Preventing dehydration
Correct answer: A
Rationale: The primary goal of therapy during the acute phase of Kawasaki disease is to prevent coronary artery aneurysms, which are a serious complication of this condition. Coronary artery aneurysms can lead to long-term cardiovascular issues, making prevention crucial. While reducing fever and improving cardiac function are important aspects of managing Kawasaki disease, the primary focus in the acute phase is on preventing coronary artery aneurysms. Dehydration prevention is also essential but not the primary goal during the acute phase of this disease.
3. 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 healthcare provider at the next visit.
Correct answer: B
Rationale: Live vaccines, like the measles, mumps, and rubella (MMR) vaccine, should not be administered to immunosuppressed infants, such as those undergoing chemotherapy. The weakened immune system of these infants may not be able to handle live vaccines safely, potentially leading to severe complications. Therefore, it is crucial to avoid giving live vaccines like MMR to infants receiving chemotherapy. Choice A is incorrect as delaying the MMR vaccine until the infant reaches 2 years of age is not the main concern in this scenario. Choice C is incorrect because although MMR vaccination is important for disease prevention, it should not be given to immunosuppressed infants. Choice D is incorrect as immediate action is needed to prevent potential harm from live vaccines in immunosuppressed infants.
4. What is the most common cause of seizures in children?
- A. An abrupt rise in body temperature
- B. An inflammatory process in the brain
- C. A temperature greater than 102°F
- D. A life-threatening infection
Correct answer: C
Rationale: Seizures in children most often result from a temperature greater than 102°F, known as febrile seizures. Febrile seizures are commonly triggered by a rapid increase in body temperature due to infections or other causes. Choice A is incorrect as febrile seizures are not necessarily caused by the abrupt rise in body temperature alone. Choice B is incorrect as inflammatory processes in the brain may lead to other types of seizures but are not the most common cause in children. Choice D is incorrect as not all seizures in children are due to life-threatening infections.
5. When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:
- A. nondisjunction.
- B. X-linked recessive inheritance.
- C. genomic imprinting.
- D. autosomal dominant inheritance.
Correct answer: A
Rationale: Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division that leads to the presence of an extra chromosome 21. This additional chromosome alters the normal genetic makeup, resulting in the characteristics associated with Down syndrome. Therefore, the correct answer is nondisjunction (Choice A). Choices B, C, and D are incorrect because Trisomy 21 is not caused by X-linked recessive inheritance, genomic imprinting, or autosomal dominant inheritance. Understanding the specific genetic mechanism involved in Trisomy 21 is crucial for grasping the basis of this chromosomal disorder.
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