Nursing Elites

1. 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.

2. Saturated fats are generally found in animal products with a few exceptions. Which of the following is a plant product that contains a large proportion of saturated fat?

• A. canola oil
• B. olive oil
• C. soybean oil
• D. coconut oil

Correct answer: D

Rationale: Coconut oil is a plant-based oil that is high in saturated fat, unlike most other plant oils, which are typically unsaturated.

3. Which hormone is produced in fat tissue and helps regulate body fat by suppressing appetite?

• A. glucagon
• B. ghrelin
• C. leptin
• D. insulin

Correct answer: C

Rationale: The correct answer is C, leptin. Leptin is a hormone produced by fat cells that helps regulate energy balance by suppressing hunger, thus aiding in the regulation of body fat. Glucagon (choice A) is a hormone that raises blood glucose levels, ghrelin (choice B) stimulates appetite, and insulin (choice D) regulates blood sugar levels and promotes glucose uptake.

4. Which of the following is not correct?

• A. energy density is a comparison of energy (kcals) content to the weight of food
• B. if a food product contains a 15% daily value of calcium, that product is said to be a low source of calcium
• C. MyPlate illustrates the 5 food groups
• D.

Correct answer: B

Rationale: A product with 15% Daily Value (DV) of calcium is considered a good source, not a low source. Typically, anything 10-19% DV is considered a good source.

5. A client with a body mass index of 28 is seeking dietary advice. Which of the following actions should the nurse take?

• A. Encourage the client to continue their current daily caloric intake.
• B. Recommend a total fiber intake of 12g per day.
• C. Advise the client to add 500 calories per day to their diet.
• D. Refer the client to a weight-loss support group.

Correct answer: D

Rationale: Referring the client to a weight-loss support group is the most appropriate action for a client with a body mass index of 28. This action can provide the necessary support, guidance, and motivation to help the client achieve their weight loss goals. Encouraging the client to continue their current daily caloric intake (Choice A) may not address the need for weight loss. Recommending a total fiber intake of 12g per day (Choice B) is important for overall health but may not directly address weight loss. Advising the client to add 500 calories per day to their diet (Choice C) would not be beneficial for weight loss in this scenario.

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