Nursing Elites

1. Which nutrient is most important for maintaining fluid balance in the body?

• A. Protein
• B. Sodium
• C. Calcium
• D. Vitamin C

Correct answer: B

Rationale: Sodium plays a key role in maintaining fluid balance and regulating blood pressure.

2. Which mineral is essential for wound healing?

• A. iodine
• B. chromium
• C. zinc
• D. sulfate

Correct answer: C

Rationale: Zinc plays a critical role in wound healing due to its involvement in cell proliferation, immune function, and protein synthesis, all of which are essential for tissue repair.

3. Each of the following nutrients provides energy except one. Which one is the exception?

• A. Proteins
• B. Carbohydrates
• C. Fats
• D. Vitamins

Correct answer: D

Rationale: The correct answer is D, Vitamins. While proteins, carbohydrates, and fats provide energy, vitamins do not. Vitamins are essential micronutrients that help regulate various biochemical processes in the body, such as metabolism and immunity. Choice A, B, and C are incorrect because proteins, carbohydrates, and fats are macronutrients that the body uses as a source of energy.

4. A nurse in a long-term care facility is developing strategies to promote increased food intake for an older adult client. Which of the following interventions should the nurse implement?

• A. Offer sugar substitutes to increase the client’s appetite.
• B. Provide opportunities to eat three large meals per day.
• C. Provide entertainment while the client is eating.
• D. Offer finger foods at mealtime.

Correct answer: D

Rationale: The correct intervention for promoting increased food intake for an older adult client is to offer finger foods at mealtime. Finger foods are easier for older adults to manage, making eating less cumbersome and more enjoyable, which can help increase overall food intake. Providing sugar substitutes (Choice A) may not necessarily increase appetite and could have negative health effects. Eating three large meals per day (Choice B) may be overwhelming and not suitable for older adults who may prefer smaller, more frequent meals. While providing entertainment (Choice C) during meals can be beneficial in some cases, it may not directly contribute to increased food intake as effectively as offering finger foods.

5. Each statement is true regarding oral exposure to fermentable carbohydrates, except one. Which is the exception?

• A. Longer exposure leads to an increased risk of demineralization
• B. Longer exposure increases the opportunity for remineralization
• C. The Stephan curve illustrates pH changes within plaque after rinsing with a sugar solution
• D. The critical pH at which enamel decalcification occurs is 5.5 or less

Correct answer: B

Rationale: All the statements above are accurate about oral exposure to fermentable carbohydrates, except for option B. In fact, longer exposure to these carbohydrates decreases the opportunity for remineralization. This is because the process of demineralization, in which minerals are lost from the tooth enamel, is sped up by the presence of fermentable carbohydrates. The Stephan curve (option C) is a graph that demonstrates how the pH of dental plaque changes after a sugar rinse, usually dropping (becoming more acidic), which can lead to enamel decalcification. Option D is also accurate, as a pH of 5.5 or lower is the critical point at which enamel starts to decalcify.

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