which physiologic role does vitamin c play in the body
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Nursing Elites

ATI RN

ATI Nutrition Proctored Exam

1. Which physiologic role does vitamin C play in the body?

Correct answer: C

Rationale: Vitamin C plays a crucial role in protecting the integrity of cellular membranes. It is essential for collagen synthesis, which is important for wound healing and maintaining skin, blood vessels, and other tissues. Choice A is incorrect as the transcription of DNA to RNA is facilitated by vitamin A. Choice B is incorrect as calcium absorption and regulation are functions of vitamin D. Choice D is incorrect as vitamin K serves as a catalyst for the synthesis of blood-clotting factors, not vitamin C.

2. Which term is used to describe populations located in lower income, inner city, and rural areas with few supermarkets but numerous small stores stocking limited nutritious food items?

Correct answer: C

Rationale: A food desert refers to areas with limited access to affordable and nutritious food, often found in lower-income urban and rural areas.

3. A nurse is reinforcing teaching about food choices with the mother of an 8-month-old infant. Which of the following statements by the mother indicates a need for further teaching?

Correct answer: B

Rationale: Choice B, 'I will give my child rice cereal and crackers,' indicates a need for further teaching. Infants should not be given crackers at 8 months of age due to the risk of choking. Rice cereal is appropriate for infants, but it should be introduced carefully to avoid digestive issues. Choices A, C, and D are appropriate food choices for an 8-month-old infant, providing a variety of nutrients and textures suitable for their age and developmental stage.

4. Which vitamin acts most like a hormone?

Correct answer: C

Rationale: The correct answer is Vitamin D. Although vitamin D, also known as calciferol, has been called a vitamin, it is more appropriately classified as a hormone. Like hormones, vitamin D acts to control the function of other cell types. For example, it helps the body absorb and regulate skeletal calcium and phosphorus levels. Choice A (Vitamin A) plays a crucial role in vision and immune function. Choice B (Vitamin B) is a complex of different vitamins that play various roles in the body. Choice D (Vitamin C) is important for collagen production and acts as an antioxidant.

5. Which step of the management process is concerned with Policy making and Stating the goals and objective of the institution?

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.

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