the function of villi and microvilli in the gi tract is to
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Nursing Elites

ATI RN

Proctored Nutrition ATI

1. What is the function of villi and microvilli in the GI tract?

Correct answer: D

Rationale: Villi and microvilli in the GI tract serve to increase the surface area of the small intestine, aiding in the absorption of nutrients into the bloodstream. Choices A, B, and C are incorrect as villi and microvilli are primarily involved in enhancing absorption, not in producing bile, killing bacteria, or producing vitamin K.

2. Which breakfast items indicate an understanding of foods high in antioxidants A and C?

Correct answer: D

Rationale: The correct answer is D: Hard-boiled eggs, cantaloupe, and orange juice. Cantaloupe and orange juice are rich in vitamins A and C, which are known for their antioxidant properties. Choice A is incorrect because fried eggs, sausage, and whole wheat toast do not contain high levels of antioxidants A and C. Choice B is incorrect because, while blueberries are high in antioxidants, coffee does not provide significant amounts of vitamins A and C. Choice C is incorrect because, although strawberries are a good source of vitamin C, low-fat milk does not contribute significantly to vitamins A and C.

3. What is the recommended dietary intervention for a patient with hyperlipidemia?

Correct answer: C

Rationale: Increasing dietary fiber can help reduce cholesterol levels in patients with hyperlipidemia.

4. A nurse is discussing sources of vitamin K with a client. Which food should the nurse recommend?

Correct answer: B

Rationale: Leafy greens are rich in vitamin K, which is important for blood clotting.

5. Which of the following is a normal change observed in an elderly individual?

Correct answer: C

Rationale: The correct answer is C, frequent urination. As people age, they may experience physiological changes that can lead to an increased frequency of urination. This is due to a decrease in bladder capacity and increased bladder irritability, which are normal age-related changes. On the contrary, the sense of taste (Choice A) and appetite (Choice B) often decrease with age, not increase. As for Choice D, the lens of the eye actually thickens with age, not thins, leading to conditions like presbyopia. Therefore, Choices A, B, and D are incorrect.

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