Nursing Elites

1. Each of the following accurately describes features of MyPlate except one. Which one is the exception?

• A. MyPlate replaces the well-known food guide, MyPyramid.
• B. The interactive website is intended to help consumers apply personalized dietary guidance.
• C. Whereas MyPyramid was more specific in many areas, MyPlate provides more general information.
• D. Foods providing similar types of nutrients are grouped together and emphasize proportionality of food selections.

Correct answer: C

Rationale: The correct answer is C because MyPlate actually provides more specific guidance compared to MyPyramid. MyPlate was designed to simplify the dietary recommendations for consumers by focusing on a visual representation of a plate divided into food groups, making it easier to understand and apply. Choices A, B, and D accurately describe features of MyPlate: replacing MyPyramid, providing personalized dietary guidance through an interactive website, and grouping foods with similar nutrients while emphasizing proportionality of food selections.

2. Each statement regarding the correlation between vitamin D and sun exposure is accurate, except one. Which is the exception?

• A. The body can produce sufficient amounts of vitamin D from sunlight.
• B. UV radiation can convert a precursor of vitamin D to vitamin D3 by penetrating uncovered skin.
• C. Sunscreen blocks the formation of vitamin D3.
• D. By the age of 70 years, the skin generally produces vitamin D at only half the level it did at the age of 20 years.

Correct answer: C

Rationale: While UV radiation can penetrate uncovered skin and convert a precursor of vitamin D to vitamin D3, sunscreen does block the formation of vitamin D3. Sunscreen is recommended by dermatologists to prevent sunburn and reduce the risk of skin cancer. The other choices are correct: the body can produce sufficient vitamin D from sunlight, UV radiation can convert a precursor of vitamin D to vitamin D3, and skin generally produces less vitamin D as a person ages.

3. Which food is most likely to be included in a low-fiber diet?

• A. Broccoli
• B. Ripe Bananas
• C. Onions
• D. Whole-Grain Bread

Correct answer: B

Rationale: A low-fiber diet is generally recommended for individuals who need to restrict their intake of dietary fiber for health reasons. Ripe bananas are low in fiber and easy to digest, making them an ideal choice for a low-fiber diet. On the other hand, broccoli, onions, and whole-grain bread are high in fiber. Therefore, they are less suitable for a low-fiber diet as they could cause digestive discomfort or exacerbate certain health conditions. Ripe bananas, being low in fiber, are the most appropriate choice for a low-fiber diet.

4. During the Emergent phase of a burn, the most fatal electrolyte imbalance in a burned client is:

• A. Hypokalemia
• B. Hyperkalemia
• C. Hypernatremia
• D. Hyponatremia

Correct answer: A

Rationale: During the Emergent phase of burns, the most fatal electrolyte imbalance is Hypokalemia. This is due to the shift of potassium from the intracellular space to the extracellular space, leading to low potassium levels in the blood. Choices B, C, and D are incorrect because Hyperkalemia, Hypernatremia, and Hyponatremia are not typically associated with the Emergent phase of burns and do not pose the same level of risk as Hypokalemia in this context.

5. Cariogenic foods and beverages, which are fermentable carbohydrates that can be metabolized by oral bacteria, reduce salivary pH to what critical level?

• A. 5
• B. 5.5
• C. 6
• D. 6.5

Correct answer: B

Rationale: Cariogenic foods and beverages lower the pH level in the mouth to below 5.5. This is a critical threshold, as it is the point at which enamel begins to demineralize, increasing the risk of dental caries. Therefore, options 'A', 'C', and 'D' are incorrect. Although a pH level of 5, as suggested by option 'A', would indeed lead to demineralization, it's not the threshold value. The pH levels suggested by options 'C' and 'D' (6 and 6.5, respectively) are higher than the critical value of 5.5, which means they would not initiate enamel demineralization and the subsequent risk of dental caries.

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