each correlation between vitamin d and sun exposure is accurate except one which is the exception

ATI RN

ATI Nutrition Proctored Exam

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. A nurse is caring for a client with a major burn injury and is receiving TPN. Which of the following lab tests is the priority for the nurse to use to confirm the client is receiving adequate nutrition?

A. Iron
B. Magnesium
C. Folic acid
D. Prealbumin

Correct answer: D

Rationale: Prealbumin is a sensitive indicator of protein status and nutrition, making it a priority for assessing nutritional adequacy in clients receiving TPN. Iron, magnesium, and folic acid levels are important for overall health but do not specifically indicate nutritional adequacy in the context of TPN administration.

3. Hypertrophic burn scars are caused by:

A. exaggerated contraction
B. random layering of collagen
C. wound ischemia
D. delayed epithelialization

Correct answer: C

Rationale: Effective nursing care involves comprehensive assessments that address all aspects of a patient's condition, ensuring that interventions are appropriately targeted and outcomes are optimized.

4. What kinds of foods do people who live in food deserts typically lack?

A. fresh fruits and vegetables
B. energy-dense foods
C. beef or pork products
D. grains and cereals

Correct answer: A

Rationale: Correct Answer: Fresh fruits and vegetables are often unavailable in food deserts, where access to nutritious, perishable foods is limited. Choice B, energy-dense foods, is incorrect because these are more likely to be available in food deserts, contributing to health issues. Choice C, beef or pork products, is incorrect as the focus is on the lack of fresh produce. Choice D, grains and cereals, is incorrect as these are staple foods that are more commonly found even in areas classified as food deserts.

5. A client with type 1 diabetes mellitus asks a nurse for a sweetener recommendation. Which of the following recommendations should the nurse make?

A. Corn syrup
B. Natural honey
C. Nonnutritive sugar substitute
D. Guava nectar

Correct answer: C

Rationale: The correct recommendation for a client with type 1 diabetes mellitus looking for a sweetener is a nonnutritive sugar substitute. Nonnutritive sugar substitutes do not significantly affect blood glucose levels, making them a suitable option for individuals with diabetes. Corn syrup and natural honey are high in sugar and can lead to spikes in blood glucose levels, which is not ideal for someone with diabetes. Guava nectar, while natural, is also high in sugar content and not recommended for individuals with diabetes.