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 t

ATI RN

ATI Nutrition

1. 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?

A. Fiber
B. Vitamin A
C. Vitamin C
D. Oxalates

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.

2. The dietary guidelines for Americans recommend consuming:

A. nutrient dense foods
B. non-essential amino acids
C. energy dense foods
D. organically grown foods

Correct answer: A

Rationale: The guidelines emphasize nutrient-dense foods that provide essential vitamins, minerals, and other nutrients without excessive calories, sugars, or unhealthy fats.

3. What are the best food sources of magnesium?

A. oils, bananas, and pork
B. pizza, potatoes, and tomatoes
C. milk, rice, and apples
D. legumes, whole grains, and chocolate

Correct answer: D

Rationale: The correct answer is D: legumes, whole grains, and chocolate. These foods are rich sources of magnesium, an essential mineral that plays a role in over 300 biochemical reactions in the body. Choices A, B, and C do not contain as high levels of magnesium compared to legumes, whole grains, and chocolate.

4. Where does most nutrient digestion and absorption occur?

A. Large intestine
B. Small intestine
C. Stomach
D. Mouth

Correct answer: B

Rationale: The small intestine is the correct answer. It is the primary site for nutrient digestion and absorption in the digestive system. The small intestine plays a crucial role in breaking down carbohydrates, proteins, and fats into forms that can be absorbed by the body. While the large intestine absorbs water and electrolytes, the majority of nutrient absorption occurs in the small intestine. The stomach primarily functions in the initial digestion of proteins, and the mouth begins the mechanical breakdown of food through chewing.