Nursing Elites

1. Cariogenic foods and beverages, which are fermentable carbohydrates that can be metabolized by oral bacteria, reduce salivary pH to what critical level?

• A. 5
• B. 5.5
• C. 6
• D. 6.5

Correct answer: B

Rationale: Cariogenic foods and beverages lower the pH level in the mouth to below 5.5. This is a critical threshold, as it is the point at which enamel begins to demineralize, increasing the risk of dental caries. Therefore, options 'A', 'C', and 'D' are incorrect. Although a pH level of 5, as suggested by option 'A', would indeed lead to demineralization, it's not the threshold value. The pH levels suggested by options 'C' and 'D' (6 and 6.5, respectively) are higher than the critical value of 5.5, which means they would not initiate enamel demineralization and the subsequent risk of dental caries.

2. What is the recommended dietary intervention for a patient with hyperlipidemia?

• A. Increase saturated fat intake
• B. Reduce fiber intake
• C. Increase dietary fiber intake
• D. Reduce protein intake

Correct answer: C

Rationale: Increasing dietary fiber can help reduce cholesterol levels in patients with hyperlipidemia.

3. What is the function of villi and microvilli in the GI tract?

• A. produce bile
• B. kill bacteria
• C. produce vitamin K
• D. increase the surface area for absorption

Correct answer: D

Rationale: Villi and microvilli in the GI tract serve to increase the surface area of the small intestine, aiding in the absorption of nutrients into the bloodstream. Choices A, B, and C are incorrect as villi and microvilli are primarily involved in enhancing absorption, not in producing bile, killing bacteria, or producing vitamin K.

4. What is the most appropriate instruction to provide to the parent of a child who does not like a food item?

• A. The child should not be encouraged to try it again.
• B. The child should be offered a reward if they eat most of the food items.
• C. The child should be offered the item at least 8 times on different occasions.
• D. The child should be encouraged to eat at least 5 bites of the food item.

Correct answer: C

Rationale: The correct answer is C. Encouraging repeated exposure to the food item can help the child develop a taste for it. Option A is incorrect as it suggests avoiding encouraging the child to try the food again, which may hinder their ability to develop a liking for it. Option B is incorrect as using rewards for eating may not promote a genuine interest in the food item. Option D is incorrect because setting a specific number of bites may create pressure and negativity around mealtime, rather than fostering a positive association with the food.

5. To raise HDL levels, what is Mrs. Smith advised to do?

• A. quit smoking
• B. increase dietary sodium
• C. take iron supplements
• D. avoid dairy products

Correct answer: A

Rationale: The correct answer is A: quit smoking. Smoking lowers HDL levels, so quitting smoking is crucial to raising HDL levels. Increasing dietary sodium (choice B) is not linked to raising HDL levels and can have negative effects on cardiovascular health. Taking iron supplements (choice C) is not directly related to increasing HDL levels. Avoiding dairy products (choice D) is not necessary to raise HDL levels; in fact, some dairy products like low-fat options can be part of a heart-healthy diet.

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