Nursing Elites

1. 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.

2. Congenital heart defects have traditionally been divided into acyanotic or cyanotic defects. Based on the nurse’s knowledge of congenital heart defects, this system in clinical practice is

• A. helpful because it explains the hemodynamics involved
• B. helpful because children with cyanotic defects are easily identified
• C. problematic because cyanosis is rarely present in children
• D. problematic because children with acyanotic heart defects may develop cyanosis

Correct answer: D

Rationale: The classification system of congenital heart defects into acyanotic or cyanotic defects is problematic because children with acyanotic heart defects may develop cyanosis, complicating the differentiation. Cyanosis can occur in some acyanotic defects due to various reasons such as right-to-left shunting or decreased pulmonary blood flow, making the classification based solely on cyanosis misleading. Choice A is incorrect because while the classification may involve hemodynamics, the main issue lies in the potential for acyanotic defects to develop cyanosis. Choice B is incorrect as the ease of identifying children with cyanotic defects does not address the main problem with the classification system. Choice C is also incorrect as the presence of cyanosis is not the only factor determining the classification's validity.

3. During a clinical conference with a group of nursing students, the instructor is describing burn classification. The instructor determines that the teaching has been successful when the group identifies what as characteristic of full-thickness burns?

• A. Skin that is reddened, dry, and slightly swollen
• B. Skin appearing wet with significant pain
• C. Skin with blistering and swelling
• D. Skin that is leathery and dry with some numbness

Correct answer: D

Rationale: Full-thickness burns are characterized by a leathery, dry appearance with numbness due to nerve damage. Choice A describes characteristics of superficial burns, which are not full-thickness. Choice B describes characteristics of partial-thickness burns with intact blisters, not full-thickness burns. Choice C describes characteristics of partial-thickness burns with blistering and swelling, not full-thickness burns.

4. A child with a diagnosis of asthma is being evaluated for medication management. What is an important assessment for the nurse to perform?

• A. Assess the child's sleep patterns
• B. Assess the child's dietary intake
• C. Assess the child's academic performance
• D. Assess the child's behavior at home

Correct answer: B

Rationale: Assessing the child's dietary intake is crucial in managing asthma as certain foods can trigger or worsen symptoms. Monitoring dietary habits helps identify any potential triggers and ensures proper nutrition, which can impact asthma control. Assessing sleep patterns, academic performance, or behavior at home may provide valuable information in a general health assessment, but when specifically managing asthma, dietary intake assessment is the most relevant.

5. A healthcare provider is preparing a 2-year-old child for surgery. What preoperative teaching should be provided to this child?

• A. Explaining the procedure in simple terms
• B. Using a doll to demonstrate the procedure
• C. Showing pictures of the hospital environment
• D. Allowing the child to play with medical equipment

Correct answer: B

Rationale: Using a doll to demonstrate the procedure is the most appropriate preoperative teaching method for a 2-year-old child. It helps them understand what to expect in a non-threatening way by providing a visual representation of the upcoming surgery. Explaining the procedure in simple terms may be too abstract for a child of this age, as they may not fully comprehend verbal explanations. Showing pictures of the hospital environment may not be as effective as using a doll, as it may not provide a concrete understanding of the actual procedure. Allowing the child to play with medical equipment is unsafe and does not adequately prepare them for the surgery, as it may lead to misunderstandings or fear regarding the equipment's actual use during the surgery.

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