Nursing Elites

1. Each statement is true regarding oral exposure to fermentable carbohydrates, except one. Which is the exception?

• A. Longer exposure leads to an increased risk of demineralization
• B. Longer exposure increases the opportunity for remineralization
• C. The Stephan curve illustrates pH changes within plaque after rinsing with a sugar solution
• D. The critical pH at which enamel decalcification occurs is 5.5 or less

Correct answer: B

Rationale: All the statements above are accurate about oral exposure to fermentable carbohydrates, except for option B. In fact, longer exposure to these carbohydrates decreases the opportunity for remineralization. This is because the process of demineralization, in which minerals are lost from the tooth enamel, is sped up by the presence of fermentable carbohydrates. The Stephan curve (option C) is a graph that demonstrates how the pH of dental plaque changes after a sugar rinse, usually dropping (becoming more acidic), which can lead to enamel decalcification. Option D is also accurate, as a pH of 5.5 or lower is the critical point at which enamel starts to decalcify.

2. The two members of the health care team who work closely to monitor drug-nutrient interactions are the:

• A. physician and nurse
• B. physician and pharmacist
• C. nurse and clinical dietitian
• D. clinical dietitian and pharmacist

Correct answer: D

Rationale: The correct answer is D: clinical dietitian and pharmacist. Clinical dietitians and pharmacists work closely together to monitor and manage drug-nutrient interactions. While physicians and nurses play essential roles in patient care, they are not typically the primary professionals involved in monitoring drug-nutrient interactions. Therefore, choices A, B, and C are incorrect.

3. A client who is breastfeeding is being taught diet modification by a nurse. Which of the following statements by the client indicates an understanding of the teaching?

• A. I should drink an 8-ounce glass of water each time my baby nurses.
• B. I should take a 1500-milligram iron supplement daily.
• C. I can eat a 2500-calorie daily diet to lose 1 lb per week.
• D. I can eat ounces of swordfish daily.

Correct answer: A

Rationale: The correct answer is A because drinking an 8-ounce glass of water each time the baby nurses helps maintain hydration and support milk production. Choice B is incorrect as the need for iron supplementation should be discussed with a healthcare provider. Choice C is incorrect as a 2500-calorie diet is not typically recommended for weight loss during breastfeeding. Choice D is incorrect as consuming high levels of swordfish is not advisable due to its mercury content, which can be harmful to the baby.

4. What is the purpose of a chest tube after a lobectomy procedure, as understood by the nurse?

• A. Prevent mediastinal shift
• B. Promote chest expansion of the remaining lung
• C. Drain fluids and blood accumulated post-operatively
• D. Remove the air in the lungs to promote lung expansion

Correct answer: C

Rationale: After a lobectomy, a chest tube is typically inserted to drain fluids and blood that may have accumulated post-operatively. This tube helps to prevent complications, such as infections or pneumonia, and aids in patient recovery. While a chest tube may aid in preventing a mediastinal shift (Choice A), promoting chest expansion of the remaining lung (Choice B), and removing air in the lungs to promote lung expansion (Choice D), these are not the primary reasons for its use after a lobectomy. Therefore, Choices A, B, and D are incorrect.

5. The parent of a child newly diagnosed with lactose intolerance is being taught by the nurse. Which food items identified by the parent indicate an understanding of foods to avoid?

• A. Popcorn, seeds, and any foods containing nuts.
• B. Milk, cheese, ice cream, and puddings.
• C. Wheat, rye, barley, and commercially baked goods.
• D. Eggs, ham, bacon, and canned meats.

Correct answer: B

Rationale: The correct answer is B. Milk, cheese, ice cream, and puddings contain lactose, which individuals with lactose intolerance should avoid. Choices A, C, and D do not contain lactose and are not typically problematic for individuals with lactose intolerance.

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