which nutrient is most important for maintaining fluid balance in the body

ATI RN

ATI RN Nutrition Online Practice 2019

1. Which nutrient is most important for maintaining fluid balance in the body?

A. Protein
B. Sodium
C. Calcium
D. Vitamin C

Correct answer: B

Rationale: Sodium plays a key role in maintaining fluid balance and regulating blood pressure.

2. Because of increasing cases of fluorosis, low levels of fluoride are added to commercial infant formula. Breast milk provides low levels of fluoride.

A. Both statements are true
B. Both statements are false
C. The first statement is true; the second is false
D. The first statement is false; the second is true

Correct answer: D

Rationale: The first statement is false; fluoride is not added to infant formulas due to the risk of fluorosis. The second statement is true; breast milk contains low levels of fluoride.

3. A nurse is providing teaching to a group of older adults about sources of complete and incomplete protein. Which of the following foods should the nurse include as a complete protein?

A. Yogurt
B. Fresh vegetables
C. Nuts
D. Dried Beans

Correct answer: A

Rationale: Yogurt is the correct answer as it is a complete protein source, containing all nine essential amino acids. Fresh vegetables, nuts, and dried beans are incomplete protein sources as they lack one or more essential amino acids required by the body.

4. Which of the following is a good food source of iodine?

A. Seafood
B. Lettuce
C. Broccoli
D. Pork

Correct answer: A

Rationale: Seafood is a rich source of iodine, essential for maintaining healthy thyroid function and overall metabolic health. While lettuce, broccoli, and pork may contain some iodine, they do not provide as substantial an amount as seafood. Therefore, they are not considered 'good' sources of iodine in comparison.

5. A nurse is caring for a 30-month-old toddler and is preparing a nutritional snack. Which of the following foods is appropriate for the nurse to offer the toddler?

A. Plain popcorn
B. Grapes
C. Raw carrots
D. Cheese

Correct answer: D

Rationale: Cheese is a safe and nutritious option for toddlers as it provides calcium and protein without posing choking hazards. Plain popcorn, grapes, and raw carrots are not recommended for toddlers due to the potential choking risks they present, especially at a young age.