what is the smallest amount of a nutrient that when consumed over a prolonged period maintains a specific function

HESI LPN

Nutrition Final Exam

1. What is the smallest amount of a nutrient that, when consumed over a prolonged period, maintains a specific function?

A. nutrient allowance
B. nutrient requirement
C. nutrient tolerable limit
D. nutrient adequate intake

Correct answer: B

Rationale: The correct answer is 'B: nutrient requirement.' The nutrient requirement refers to the smallest amount of a nutrient that, when consumed over a prolonged period, maintains a specific function in the body. This amount ensures the body's optimal functioning and health. Choice A, 'nutrient allowance,' is incorrect as it does not specifically refer to the minimum amount needed for bodily functions but rather suggests a broader term. Choice C, 'nutrient tolerable limit,' is incorrect as it pertains to the maximum amount of a nutrient that can be consumed without adverse effects. Choice D, 'nutrient adequate intake,' is incorrect as it refers to the recommended average daily intake level of a nutrient to meet the requirements of most healthy individuals.

2. Which individual is making a food choice based on negative association?

A. A tourist from China who rejects a hamburger due to unfamiliarity
B. A child who spits out his mashed potatoes because they taste too salty
C. A teenager who grudgingly accepts an offer for an ice cream cone to avoid offending a close friend
D. An elderly gentleman who refuses a peanut butter and jelly sandwich because he considers it a child's food

Correct answer: D

Rationale: Choice D is the correct answer because the elderly gentleman is refusing the peanut butter and jelly sandwich due to his negative association of considering it a child's food. This negative association influences his food choice. Choices A, B, and C do not involve negative associations with the food being consumed. Choice A is based on unfamiliarity, Choice B is due to taste preference, and Choice C is driven by social considerations rather than negative food association.

3. Which characteristic is most typical of a chronic disease?

A. It has a rapid onset.
B. It rarely has noticeable symptoms.
C. It produces sharp pains.
D. It progresses gradually.

Correct answer: D

Rationale: The correct answer is D. Chronic diseases are characterized by a gradual progression over time, affecting individuals for an extended period. Option A is incorrect as chronic diseases do not have a rapid onset like acute conditions. Option B is incorrect as chronic diseases often manifest noticeable symptoms. Option C is incorrect as sharp pains are not a defining characteristic of chronic diseases. Chronic diseases can present a variety of symptoms depending on the specific condition, but gradual progression is a common feature distinguishing them from acute illnesses.

4. How should a healthcare professional manage a child with scabies?

A. Use topical permethrin cream
B. Administer oral antibiotics
C. Apply topical antifungals
D. Provide supportive care only

Correct answer: A

Rationale: Corrected Rationale: Topical permethrin cream is the appropriate treatment for scabies as it effectively kills the mites causing the infestation. Oral antibiotics are not indicated for scabies as it is not a bacterial infection. Topical antifungals are used to treat fungal infections, not scabies. Providing supportive care only would not address the underlying cause of scabies, which is the mite infestation.

5. How should a caregiver manage a child with a known allergy to peanuts?

A. Avoid all peanut-containing products
B. Encourage regular exposure to peanuts
C. Administer antihistamines daily
D. Recommend peanut-containing supplements

Correct answer: A

Rationale: Avoiding peanut-containing products is crucial for managing a peanut allergy and preventing allergic reactions. Choice B suggesting regular exposure to peanuts can be harmful and trigger severe allergic reactions in a child with a peanut allergy. Regular exposure can increase the risk of anaphylaxis. Choice C of administering antihistamines daily is not a primary prevention strategy and should not be the first-line approach for managing a peanut allergy. Antihistamines only treat symptoms and do not prevent the allergic reaction. Choice D of recommending peanut-containing supplements can also lead to severe allergic reactions and is not recommended for a child with a known peanut allergy. It is essential to eliminate all sources of peanuts to prevent accidental exposure and potential life-threatening reactions.