RN

1. What factor has been shown to contribute to poor nutritional health among adolescents?

• A. Most teens choose fruit juice and milk over soda
• B. Many teens consume energy drinks on a regular basis
• C. Teens have busy schedules and rarely drink fluids throughout the day
• D. Teens are more likely to consume low-fat milk

Correct Answer: B

Rationale: The correct answer is B because many teens regularly consume energy drinks, which can contribute to poor nutritional health due to their high sugar and caffeine content, leading to unhealthy dietary patterns. Choice A is incorrect because choosing fruit juice and milk over soda would generally be considered a healthier choice. Choice C is incorrect as busy schedules leading to inadequate fluid intake might impact hydration but not necessarily poor nutritional health. Choice D is also incorrect as consuming low-fat milk is not typically a significant factor contributing to poor nutritional health among adolescents.

2. The ideal time to begin taking folate to prevent neural tube defects is:

• A. Before conception
• B. Once pregnancy begins
• C. At 6 weeks
• D. Upon completion of the first trimester

Correct Answer: A

Rationale: Folate is crucial before conception to prevent neural tube defects. Neural tube development occurs early in pregnancy, often before a woman knows she is pregnant.

3. If a person could not make bile, what would happen?

• A. experience fatigue, as the body would not be able to make lipid carriers to deliver fat to body cells for energy
• B. have less cholesterol being made by the liver
• C. need to consume higher levels of fat
• D. be unable to absorb most lipids, and fat would be excreted in the feces

Correct Answer: D

Rationale: The correct answer is D. Bile is essential for emulsifying fats in the small intestine, allowing them to be absorbed. Without bile, most fats would not be absorbed and would be excreted in the feces. Choices A, B, and C are incorrect because the primary role of bile is in the digestion and absorption of fats, rather than affecting lipid carriers, cholesterol production, or dietary fat consumption.

4. Which term is used to describe medical practices that have been thoroughly evaluated using scientific methods?

• A. Meta-analysis
• B. Systematic reviews
• C. Evidence-based
• D. Observational studies

Correct Answer: C

Rationale: The correct answer is C, 'Evidence-based.' Evidence-based practices refer to medical practices that have been thoroughly evaluated and supported by scientific research. Meta-analysis (A) involves statistical analysis that combines the results of multiple studies. Systematic reviews (B) are comprehensive reviews that synthesize evidence from multiple studies. Observational studies (D) are research methods where researchers observe subjects in their natural environment.

5. Patients with congestive heart failure need to restrict their intake of:

• A. fiber
• B. sodium
• C. cholesterol
• D. saturated fat

Correct Answer: B

Rationale: Patients with congestive heart failure need to restrict their intake of sodium. This restriction is crucial to prevent fluid retention, which can exacerbate the condition. While fiber is generally beneficial for heart health, sodium restriction is more critical in this scenario. Cholesterol and saturated fat intake should also be monitored, but sodium restriction takes precedence due to its direct impact on fluid balance.