Nursing Elites

1. Why do older adult female clients need less iron than younger adult female clients?

• A. The need for iron decreases because older female clients produce more red blood cells.
• B. The need for iron decreases with age because older female clients carry oxygen more efficiently.
• C. The need for iron decreases with age because older female clients experience menopause.
• D. The need for iron decreases with age because older female clients exercise more.

Correct answer: C

Rationale: The correct answer is C. Older adult female clients need less iron than younger adult female clients because as women go through menopause, they no longer lose blood through menstruation, leading to a reduced need for iron. Choice A is incorrect because producing more red blood cells does not directly correlate with needing less iron. Choice B is incorrect as carrying oxygen more efficiently does not necessarily decrease the need for iron. Choice D is incorrect as exercising more does not explain the decreased need for iron in older adult female clients.

2. The substance that is most supportive of bones and teeth is:

• A. Hemoglobin
• B. Collagen
• C. Insulin
• D. Pepsin

Correct answer: B

Rationale: Collagen is a key structural protein in bones and teeth, providing support and strength.

3. What is the major diet-derived antioxidant found in cell membranes?

• A. B12
• B. beta-carotene
• C. vitamin E
• D. vitamin A

Correct answer: C

Rationale: The correct answer is vitamin E. Vitamin E is the major antioxidant found in cell membranes, where it plays a crucial role in protecting them from oxidative damage. Although B12, beta-carotene, and vitamin A are important nutrients with specific functions in the body, they are not the primary antioxidants found in cell membranes. Vitamin E specifically localizes in cell membranes to neutralize free radicals and prevent lipid peroxidation, making it an essential antioxidant for cellular health.

4. A client at risk for iron-deficiency anemia is being taught by a nurse about optimizing dietary intake of iron. The nurse should explain that which of the following sources of iron is easiest for the body to absorb?

• A. Spinach
• B. Cantaloupe
• C. Chicken
• D. Lentils

Correct answer: C

Rationale: The correct answer is 'Chicken.' Chicken contains heme iron, which is more easily absorbed by the body compared to non-heme iron found in plant-based sources like spinach, cantaloupe, and lentils. Heme iron, as present in chicken, is more bioavailable and is better absorbed by the body, making it an excellent source of iron for individuals at risk of iron-deficiency anemia. Spinach, cantaloupe, and lentils contain non-heme iron, which is not as efficiently absorbed as heme iron.

5. Nonnutritive sweeteners are not metabolized by microorganisms and do not promote dental caries. Products made with a nonnutritive sweetener can be used as frequently as 8 to 10 times per day.

• 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: C

Rationale: The first statement is true; nonnutritive sweeteners do not promote caries. However, the second statement is false because products with nonnutritive sweeteners should still be consumed in moderation.

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