Nursing Elites

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. Each of the following is a function of vitamin A, except one. Which is the exception?

• A. Prevention of night blindness
• B. Growth of soft tissues and bone
• C. Maintenance of more than 200 genes
• D. Integrity of body openings and their linings

Correct answer: C

Rationale: The correct answer is C. Maintenance of more than 200 genes is not a function of vitamin A; instead, it is a function of Vitamin D. Vitamin A plays a crucial role in the prevention of night blindness by aiding in the production of the visual pigment rhodopsin. It also supports the growth of soft tissues and bone, as well as the integrity of body openings and their linings. Choice C is incorrect because the maintenance of genes is primarily associated with Vitamin D, not Vitamin A.

3. Which of the following statements are true about iron?

• A. The iron needs of vegans are 20% higher, and the needs of endurance athletes are 10% lower.
• B. It is one of the most common nutrient deficiencies in the world.
• C. Its absorption is increased by Vitamin C and during pregnancy.
• D. Its absorption is increased by tannic acid and calcium in milk.

Correct answer: C

Rationale: Choice C is correct because iron absorption is indeed increased by Vitamin C and during pregnancy. The other choices are incorrect. Choice A is wrong as there are no universally accepted percentages for the iron needs of vegans and endurance athletes. Choice B is inaccurate as iron deficiency is actually one of the most common nutritional deficiencies worldwide. Choice D is incorrect because tannic acid and calcium in milk actually inhibit iron absorption rather than increasing it.

4. Generally, patients who wear dentures have reduced masticatory efficiency. Mandibular implant-supported dentures can have positive effects on the clinical aspects of mastication and swallowing.

• 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: A

Rationale: Both statements are true. Patients who wear dentures typically experience reduced masticatory efficiency. Mandibular implant-supported dentures are known to have positive effects on the clinical aspects of mastication and swallowing, significantly improving chewing function. Option A is correct because both statements align with these facts. Option B is incorrect as both statements are true. Option C is incorrect as the second statement is also true. Option D is incorrect as the first statement is true.

5. Which student lunch is the least nutritious?

• A. Ham sandwich, apple, and milk
• B. Hamburger, fries, and soft drink
• C. Macaroni and cheese, green beans, and peaches
• D. Meatloaf, broccoli, and pear slices

Correct answer: B

Rationale: The correct answer is B - 'Hamburger, fries, and soft drink' as it contains foods high in unhealthy fats, sugars, and low nutritional value. A hamburger, fries, and a soft drink are considered less nutritious compared to the other options. Choice A includes a ham sandwich, apple, and milk, which provide a balance of protein, fiber, and calcium. Choice C consists of macaroni and cheese, green beans, and peaches, offering a mix of carbohydrates, vegetables, and fruits. Choice D contains meatloaf, broccoli, and pear slices, which provide a good source of protein, vitamins, and fiber. Therefore, option B is the least nutritious among the given choices.

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