a health magazine contacts you for your expert opinion on what measure best describes the amounts of nutrients that should be consumed by the populati

HESI LPN

LPN Nutrition Practice Test

1. Which measure best describes the amounts of nutrients that should be consumed by the population?

A. The Dietary Reference Intakes, as they provide a set of nutrient intake values for healthy people in the United States and Canada
B. The Tolerable Upper Intake levels, as they indicate the maximum daily amount of a nutrient considered safe for most healthy people
C. The Estimated Average Requirements, as they reflect the average daily amount of a nutrient needed to maintain a specific function in half of the healthy individuals of a population
D. The Recommended Dietary Allowances, as they represent the average daily amount of a nutrient considered adequate to meet the known nutrient needs of practically all healthy individuals

Correct answer: D

Rationale: The Recommended Dietary Allowances (RDAs) are the best measure to describe the amounts of nutrients that should be consumed by the population. RDAs represent the average daily intake level that meets the nutrient requirements of nearly all (97-98%) healthy individuals in a particular life stage and gender group. Choice A, the Dietary Reference Intakes, provide a set of nutrient intake values but do not specifically address the average daily amount of a nutrient considered adequate for practically all individuals. Choice B, the Tolerable Upper Intake levels, focus on the maximum daily amount of a nutrient deemed safe for most healthy people, not the average daily amount needed. Choice C, the Estimated Average Requirements, reflect the average daily amount of a nutrient needed by half of the healthy individuals, which is not as comprehensive as the RDAs that cater to nearly all healthy people.

2. What intervention is recommended for a child with severe dehydration?

A. Oral rehydration therapy
B. Intravenous fluid replacement
C. High-protein diet
D. Increased physical activity

Correct answer: B

Rationale: Intravenous fluid replacement is the recommended intervention for a child with severe dehydration because it allows for rapid restoration of fluid and electrolyte balance. In severe cases, oral rehydration therapy (Choice A) may not be tolerated due to the child's condition. A high-protein diet (Choice C) is not the primary intervention and does not address the immediate fluid and electrolyte imbalance. Increased physical activity (Choice D) is contraindicated in severe dehydration as it can exacerbate fluid loss, making intravenous fluid replacement the most suitable choice for prompt correction of the severe dehydration.

3. The motive for a person who alters their diet due to religious convictions is most likely related to their ___.

A. values
B. body image
C. ethnic heritage
D. functional association

Correct answer: A

Rationale: The correct answer is A, 'values.' When individuals alter their diet due to religious convictions, it is primarily driven by their personal or cultural values associated with their faith. This choice reflects the strong influence that religious beliefs can have on dietary choices. Choice B, 'body image,' is incorrect because altering one's diet for religious reasons is more about spiritual beliefs than physical appearance. Choice C, 'ethnic heritage,' is incorrect as it pertains more to cultural background rather than religious convictions. Choice D, 'functional association,' is incorrect as it does not directly relate to the motivation behind altering one's diet for religious reasons.

4. What does a positive correlation between two variables indicate?

A. One variable causes the other.
B. Both variables move in the same direction.
C. Both variables move in opposite directions.
D. There is no relationship between the variables.

Correct answer: B

Rationale: A positive correlation between two variables indicates that they move in the same direction. This means that as one variable increases (or decreases), the other variable also increases (or decreases). Choice A is incorrect because correlation does not imply causation; it only shows a relationship between variables. Choice C is incorrect as it describes a negative correlation where variables move in opposite directions. Choice D is incorrect as a positive correlation implies a relationship between the variables.

5. What is an important dietary consideration for a child with cystic fibrosis?

A. High-calorie, high-fat diet
B. Low-sugar diet
C. Increased dietary fiber
D. High-sodium diet

Correct answer: A

Rationale: For a child with cystic fibrosis, an important dietary consideration is a high-calorie, high-fat diet. This type of diet helps address malabsorption issues commonly seen in individuals with cystic fibrosis and supports adequate growth and development. High-calorie, high-fat foods are recommended to help meet the increased energy needs of these individuals. Choices B, C, and D are not the most appropriate dietary considerations for a child with cystic fibrosis. A low-sugar diet may not provide enough calories for optimal growth, increased dietary fiber may exacerbate issues related to malabsorption, and a high-sodium diet is generally not recommended due to the risk of dehydration and electrolyte imbalances in individuals with cystic fibrosis.