HESI LPN
Pediatric Practice Exam HESI
1. When a family decides to withhold 'extraordinary care' for a newborn with severe abnormalities, what does this decision indicate?
- A. The newborn has no rights.
- B. It is the same as euthanasia.
- C. It is illegal professional practice.
- D. The newborn is being allowed to die.
Correct answer: D
Rationale: When a family decides to withhold 'extraordinary care' for a newborn with severe abnormalities, it means that aggressive interventions will not be pursued, allowing the newborn to die naturally. This decision is legal and ethical, respecting the principle of non-maleficence by avoiding unnecessary suffering. Choice A is incorrect because all individuals, including newborns, have rights, but the decision to withhold extraordinary care is based on ethical considerations. Choice B is incorrect as withholding care is not the same as euthanasia, which involves actively ending life. Choice C is incorrect as long as the decision is made within legal and ethical boundaries, it is not considered illegal professional practice.
2. Which cardiac defects are associated with tetralogy of Fallot?
- A. Right ventricular hypertrophy, atrial and ventricular defects, and mitral valve stenosis
- B. Origin of the aorta from the right ventricle and of the pulmonary artery from the left ventricle
- C. Right ventricular hypertrophy, ventricular septal defect, pulmonic stenosis, and overriding aorta
- D. Altered connection between the pulmonary artery and the aorta, right ventricular hypertrophy, and an atrial septal defect
Correct answer: C
Rationale: The correct answer is C: Right ventricular hypertrophy, ventricular septal defect, pulmonic stenosis, and overriding aorta are the cardiac defects associated with Tetralogy of Fallot. In Tetralogy of Fallot, these specific abnormalities contribute to the classic features of the condition. Choice A is incorrect as it includes mitral valve stenosis, which is not typically part of Tetralogy of Fallot. Choice B describes transposition of the great arteries, not Tetralogy of Fallot. Choice D mentions an altered connection between the pulmonary artery and the aorta, which is not a defining characteristic of Tetralogy of Fallot.
3. What is a common finding that the nurse can identify in most children with symptomatic cardiac malformations?
- A. Mental retardation
- B. Inherited genetic factors
- C. Delayed physical growth
- D. Clubbing of the fingertips
Correct answer: C
Rationale: Delayed physical growth is a common finding in most children with symptomatic cardiac malformations. This occurs due to inadequate oxygenation and nutrient supply to tissues as a result of the cardiac defect. Mental retardation (Choice A) is not typically associated with cardiac malformations unless there are complications affecting brain function. Inherited genetic factors (Choice B) may contribute to the development of cardiac malformations but are not a direct common finding in affected children. Clubbing of the fingertips (Choice D) is more commonly associated with chronic respiratory or cardiac conditions, not specifically cardiac malformations in children.
4. A 13-year-old girl tells the nurse at the pediatric clinic that she took a pregnancy test and it was positive. She adds that her grandfather, with whom she, her younger sisters, and her mother live, has repeatedly molested her for the past 3 years. When the nurse asks the girl if she has told this to anyone, she replies, 'Yes, but my mother doesn’t believe me.' Legally, who should the nurse notify?
- A. Police regarding a potential sex crime
- B. Health care provider to confirm the pregnancy
- C. Child Protective Services for immediate intervention
- D. The girl’s mother about the positive pregnancy test result
Correct answer: C
Rationale: In cases of child abuse and ongoing molestation, as described in the scenario, the primary concern is the safety and well-being of the child. Child Protective Services should be notified immediately for intervention to protect the girl and other children in the household from further harm. The police may be involved later to investigate the criminal aspect of the abuse. Notifying the healthcare provider solely to confirm the pregnancy or informing the girl’s mother about the positive test result does not address the urgent need for intervention and protection from abuse. Child Protective Services are trained to handle such cases and provide the necessary support and protection for the child and other vulnerable individuals in the family. Immediate action is crucial to ensure the girl's safety and prevent further harm.
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: The correct answer is A: nondisjunction. Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division leading to an extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome. Choices B, C, and D are incorrect. X-linked recessive inheritance refers to genetic disorders carried on the X chromosome, genomic imprinting involves gene expression based on parental origin, and autosomal dominant inheritance relates to disorders caused by a dominant gene on one of the non-sex chromosomes. In the case of trisomy 21, the cause is specifically related to the error in chromosome division, making nondisjunction the most appropriate answer.
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