Nursing Elites

1. Which heart sound is produced by vibrations within the heart chambers or in the major arteries from the back-and-forth flow of blood?

• A. S1 and S2
• B. S3 and S4
• C. Murmur
• D. Physiologic splitting

Correct answer: C

Rationale: A murmur is produced by turbulent blood flow within the heart or major arteries, resulting in audible vibrations.

2. A young mother asks if her 9-month-old can begin drinking cow’s milk instead of formula. You explain that:

• A. Cow’s milk is easier to digest than formula
• B. Breast milk or formula should be used for now because whole cow’s milk is not recommended for infants under 1 year
• C. As long as whole milk is given and not skim milk, it is okay
• D. Cow’s milk will decrease the chance of iron deficiency anemia

Correct answer: B

Rationale: Breast milk or formula should be used for now because whole cow’s milk is not recommended for infants under 1 year. Cow’s milk is not suitable for infants under 1 year of age as it lacks essential nutrients like iron and can lead to iron deficiency. Therefore, it is important to continue with breast milk or formula to ensure the baby's nutritional needs are met. Choice A is incorrect as cow’s milk is not easier to digest than formula for infants. Choice C is incorrect as the type of milk, whether whole or skim, is not the primary concern at this age. Choice D is incorrect as cow’s milk can actually increase the risk of iron deficiency anemia in infants.

3. Which term best describes the sharing of common characteristics that differentiate one group from other groups in a society?

• A. Race
• B. Culture
• C. Ethnicity
• D. Superiority

Correct answer: C

Rationale: Ethnicity refers to the shared characteristics such as nationality, culture, language, and beliefs that differentiate one group from another.

4. The nurse is assessing a 3-year-old African American child whose height and weight are at the 20th percentile on the growth chart. What should the nurse recognize?

• A. The data suggest the child requires nutritional intervention
• B. The NCHS charts are accurate for U.S. African American children
• C. A correction factor is used for nonwhite ethnic groups
• D. No assessment can be made until several measurements are plotted over time

Correct answer: B

Rationale: The NCHS growth charts serve as reference guides for all racial or ethnic groups, including African American children. The 20th percentile for height and weight does not indicate nutritional failure but provides a reference point for ongoing assessment. Choice A is incorrect because being at the 20th percentile does not automatically imply the need for nutritional intervention. Choice C is incorrect as there is no correction factor specifically used for nonwhite ethnic groups in this context. Choice D is incorrect as a single measurement at the 20th percentile can provide valuable information for assessment.

5. What is often the initial sign of acute rheumatic fever in children?

• A. Polyarthritis
• B. Carditis
• C. Erythema marginatum
• D. Sydenham chorea

Correct answer: A

Rationale: Polyarthritis is indeed frequently the initial sign of acute rheumatic fever in children. It presents as joint pain, swelling, and redness. Carditis (inflammation of the heart), Erythema marginatum (a skin rash), and Sydenham chorea (involuntary muscle movements) are typically seen in the later stages of acute rheumatic fever and not as the initial sign.

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