Nursing Elites

1. Which vitamin deficiency is most likely to be associated with increased risk of macular degeneration?

• A. Vitamin A
• B. Vitamin B12
• C. Vitamin C
• D. Vitamin E

Correct answer: D

Rationale: Vitamin E is an antioxidant that helps protect eye health and prevent macular degeneration.

2. Each statement is true of calcium within saliva, except one. Which is the exception?

• A. Saliva is supersaturated with calcium.
• B. Saliva is a source of calcium to mineralize an immature or demineralized enamel surface.
• C. Calcium and phosphate in saliva provide a buffering action.
• D. Calcium within saliva increases dental caries.

Correct answer: D

Rationale: The correct answer is D. Calcium within saliva does not increase dental caries; in fact, the buffering action provided by calcium and phosphate in saliva inhibits caries formation by preventing the dissolution of enamel by plaque biofilm. Choice A is correct as saliva is indeed supersaturated with calcium. Choice B is correct as saliva serves as a source of calcium to mineralize an immature or demineralized enamel surface. Choice C is correct as calcium and phosphate in saliva do provide a buffering action to protect teeth from acids.

3. A client is being educated by a nurse on snacks suitable for a low-fat, low-sodium, and low-cholesterol diet. Which of the following food choices by the client indicates the need for further teaching?

• A. A slice of cheese
• B. A jam sandwich
• C. A cup of plain popcorn
• D. A small container of applesauce

Correct answer: A

Rationale: The correct answer is A: A slice of cheese. Cheese is high in fat, sodium, and cholesterol, making it unsuitable for a low-fat, low-sodium, and low-cholesterol diet. Choices B, C, and D are more appropriate for such a diet. B: A jam sandwich can be low in fat, sodium, and cholesterol if made with whole grain bread and a low-sugar jam. C: A cup of plain popcorn is a good choice as it is low in fat and can be made without added salt. D: A small container of applesauce is also a suitable option for a low-fat, low-sodium, and low-cholesterol diet.

4. Which of the following is a normal change observed in an elderly individual?

• A. Enhanced sense of taste
• B. Increased appetite
• C. Frequent urination
• D. Lens thinning

Correct answer: C

Rationale: The correct answer is C, frequent urination. As people age, they may experience physiological changes that can lead to an increased frequency of urination. This is due to a decrease in bladder capacity and increased bladder irritability, which are normal age-related changes. On the contrary, the sense of taste (Choice A) and appetite (Choice B) often decrease with age, not increase. As for Choice D, the lens of the eye actually thickens with age, not thins, leading to conditions like presbyopia. Therefore, Choices A, B, and D are incorrect.

5. Theresa, a mother with a 2-year-old daughter, asks, 'At what age can I start taking my daughter's blood pressure as a routine procedure, since hypertension is common in our family?' What would your answer be?

• A. At 2 years old, you may
• B. As early as 1 year old
• C. When she's 3 years old
• D. When she's 6 years old

Correct answer: D

Rationale: Regular blood pressure checks generally start from age 3, but in the case of a family history of hypertension, they should start when the child is around 6 years old. This is because the readings will be more reliable and indicative of the child's health condition at this age. The other options are incorrect because they suggest earlier ages for routine blood pressure checks. While blood pressure can be measured at any age, it is not typically included as part of a routine health check-up for very young children unless there are specific health concerns.

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