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. A client who is 2 days postoperative following abdominal surgery is about to progress from a clear liquid diet to full liquids. Which of the following items should the nurse tell the client he may now request to have on his meal tray?

Correct answer: A

Rationale: Cranberry juice is an appropriate choice for a client transitioning from a clear liquid diet to full liquids post abdominal surgery. It provides hydration and some essential nutrients. Flavored gelatin is usually allowed on a clear liquid diet and may not be suitable for a full liquids phase. Skim milk and chicken broth are typically introduced in a later stage of the diet progression, closer to a soft diet, due to their higher protein and fat content.

3. Clients with type 2 diabetes are most likely to achieve metabolic control if they:

Correct answer: A

Rationale: Weight loss improves insulin sensitivity and glycemic control, making it a key strategy in managing type 2 diabetes.

4. What is the process of formal negotiations of working conditions between a group of registered nurses and employer?

Correct answer: C

Rationale: The correct answer is 'collective bargaining.' Collective bargaining involves negotiations between a group of employees, in this case, registered nurses, and their employer to determine working conditions, wages, benefits, and other aspects of employment. Grievance refers to a formal complaint about a workplace issue, arbitration involves a neutral third party making a decision in a dispute, and a strike is a work stoppage by employees to protest against their employer.

5. A nurse is instructing a group of clients about nutrition and eating foods high in iron. The nurse should include that which of the following aids in the absorption of iron?

Correct answer: C

Rationale: Vitamin C aids in the absorption of iron by enhancing the body's ability to absorb non-heme iron, which is found in plant-based foods. This vitamin helps convert iron into a form that is more easily absorbed in the intestines. Choices A, B, and D are incorrect because fiber, Vitamin A, and oxalates can actually inhibit the absorption of iron. Fiber can bind to iron and reduce its absorption, Vitamin A does not directly enhance iron absorption, and oxalates found in some foods like spinach and rhubarb can also hinder iron absorption.

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