riboflavin

ATI RN

ATI Nutrition Practice A

1. Riboflavin

A. Vitamin B1
B. Vitamin B2
C. Vitamin B3
D. Vitamin B12

Correct answer: B

Rationale: Riboflavin is also known as Vitamin B2, which is important for energy production and the metabolism of fats, drugs, and steroids.

2. In persons who are obese, weight reduction can improve such CHD risk factors as hypertension, blood lipid abnormalities, and?

A. inflammation
B. insulin resistance
C. gastrointestinal motility disorders
D. damage from cigarette smoking

Correct answer: B

Rationale: Weight reduction in obese individuals can improve insulin resistance, a key factor in reducing the risk of coronary heart disease and type 2 diabetes.

3. Magnesium's major functions in the body would be least likely to include which of the following?

A. allowing muscles to relax after contraction
B. assisting the operation of hundreds of enzymes
C. synthesis of protein in the soft tissues
D. regulation of body temperature

Correct answer: D

Rationale: Magnesium plays a key role in muscle relaxation, enzyme operation, and protein synthesis, but it is not directly involved in regulating body temperature.

4. Lynn is an older adult who lives alone and has requested advice on how to eat a nutritious diet as cheaply as possible. One useful, practical tip for Lynn might be to _____.

A. buy just a few pieces of fresh fruit at a time, in different stages of ripeness
B. choose small boxes of frozen vegetables instead of large bags
C. purchase pre-sliced or shredded cheese rather than whole pieces
D. avoid buying certain foods in bulk, such as beans or dried legumes

Correct answer: A

Rationale: Buying a few pieces of fresh fruit at different stages of ripeness ensures that Lynn will have ripe fruit available over several days, reducing waste and cost. Choice B focuses on frozen vegetables but doesn't address the variety and ripeness factor like Choice A. Choice C is about cheese, which may not be as essential for a nutritious diet compared to fresh fruit. Choice D suggests avoiding certain foods in bulk, which might not be as relevant for maintaining a nutritious diet economically as the strategy in Choice A.

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

A. Enhanced sense of taste
B. Increased appetite
C. Frequent urination
D. Lens thinning

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.