Nursing Elites

1. You have been asked to help a top nutrition researcher conduct human experiments on vitamin C. As the subjects walk into the laboratory, you distribute all the vitamin C pill bottles to the girls and all the placebo pill bottles to the boys. What should you have done?

• A. Giving all the boys the vitamin C and the girls the placebo, and telling them what they were getting.
• B. Distributing the bottles randomly, randomizing the subjects, and telling them what they were getting.
• C. Telling the subjects which group they were in, but preventing yourself from knowing the contents of the pill bottles.
• D. Preventing yourself from knowing what is in the pill bottles, and distributing the bottles randomly to the subjects.

Correct answer: D

Rationale: The correct approach in a scientific experiment is to prevent yourself from knowing the contents of the pill bottles and distribute them randomly to the subjects. This randomization helps to avoid bias and ensures that the results are not influenced by preconceived notions. Option A is incorrect because it introduces gender bias by assigning pills based on gender. Option B is incorrect as it mentions telling the subjects what they are getting, which could lead to placebo effects. Option C is incorrect as it suggests disclosing group information to the subjects, which can also introduce bias.

2. What is a common treatment for a child with iron-deficiency anemia?

• A. Iron supplements
• B. High-protein diet
• C. Vitamin B12 injections
• D. Sodium chloride solution

Correct answer: A

Rationale: Iron supplements are the correct choice for treating iron-deficiency anemia in children. Iron supplements help replenish the low iron levels in the body, addressing the underlying cause of the anemia. High-protein diets may be beneficial for overall health but are not the primary treatment for iron-deficiency anemia. Vitamin B12 injections are used to treat B12 deficiency anemia, a different type of anemia. Sodium chloride solution is not a treatment for anemia and is typically used for hydration purposes.

3. Which of the following best describes the purpose of dietary guidelines?

• A. To ensure food safety and sanitation.
• B. To promote overall health and reduce the risk of chronic diseases.
• C. To prevent foodborne illnesses.
• D. To provide recommendations for physical activity.

Correct answer: B

Rationale: The correct answer is B: 'To promote overall health and reduce the risk of chronic diseases.' Dietary guidelines aim to improve public health by providing recommendations on dietary patterns and nutrient intake. While ensuring food safety and sanitation (choice A) is important, it is not the primary purpose of dietary guidelines. Preventing foodborne illnesses (choice C) is more related to food safety practices rather than dietary guidelines. Recommendations for physical activity (choice D) are important for overall health but are separate from dietary guidelines, which primarily focus on nutrition.

4. Following diarrhea, which foods should be offered to the school-age child?

• A. Apricots and peaches
• B. Chocolate milk
• C. Applesauce and milk
• D. Bananas and rice

Correct answer: D

Rationale: After a bout of diarrhea, it is important to offer foods that are gentle on the stomach and help in recovery. Bananas and rice are commonly recommended as they are easily digestible and can help firm up stools. Apricots, peaches, and applesauce may be too acidic and fibrous, potentially aggravating the stomach. Chocolate milk is high in sugar and can worsen diarrhea due to its lactose content.

5. Which nutrient is classified as a micronutrient?

• A. minerals
• B. proteins
• C. alcohols
• D. carbohydrates

Correct answer: A

Rationale: The correct answer is minerals. Micronutrients are required by the body in smaller amounts compared to macronutrients like proteins and carbohydrates. Proteins are macronutrients necessary for growth and repair, not classified as micronutrients. Alcohols and carbohydrates are not classified as micronutrients either.

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