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. When carbohydrates are eliminated from the diet to lose weight, which nutrients are most likely to become insufficient?

• A. Iron, fiber, and protein
• B. Iron, fiber, and vitamin K
• C. Vitamin A and vitamin C
• D. Iron, fiber, and B vitamins

Correct answer: D

Rationale: Iron, fiber, and B vitamins are most likely to become insufficient when carbohydrates are eliminated from the diet to lose weight. Carbohydrates are a primary source of B vitamins and fiber in the diet. Iron can also be obtained from plant-based sources like legumes and whole grains, which are often eliminated when carbohydrates are restricted. Choices A, B, and C are incorrect because protein, vitamin K, vitamin A, and vitamin C are not primarily sourced from carbohydrates and are less likely to become insufficient solely due to carbohydrate elimination.

3. While evaluating the meal choices of a client with major depressive disorder and a prescription of Phenelzine, which of the following selections should the nurse identify as appropriate?

• A. Cheddar cheese
• B. Smoked salmon
• C. Strawberry yogurt
• D. Pepperoni pizza

Correct answer: C

Rationale: The correct answer is C, 'Strawberry yogurt.' This choice is appropriate because it does not contain high levels of tyramine, which can lead to a dangerous interaction with Phenelzine, a monoamine oxidase inhibitor. Tyramine-rich foods, like aged cheeses (such as cheddar cheese) and cured meats (like smoked salmon and pepperoni), should be avoided by individuals taking Phenelzine to prevent hypertensive crisis. Strawberry yogurt is a safer option for the client in this scenario.

4. Which client is most likely to need regular injections of vitamin B12?

• A. The client with malabsorption syndrome.
• B. The client following a vegan eating pattern.
• C. The client whose stomach does not produce intrinsic factors.
• D. The client with alcoholism.

Correct answer: C

Rationale: The correct answer is C. The client whose stomach does not produce intrinsic factors is most likely to need regular injections of vitamin B12. Intrinsic factor is essential for the absorption of vitamin B12. Without intrinsic factor, the client cannot absorb vitamin B12 from food, necessitating the need for regular injections. Choices A, B, and D do not directly impact the production of intrinsic factors in the stomach, so they are less likely to result in the need for vitamin B12 injections.

5. The past history of Camila would most probably reveal that her premorbid personality is:

• A. schizoid
• B. extrovert
• C. ambivert
• D. cycloid

Correct answer: D

Rationale: Understanding the underlying pathology and therapeutic techniques ensures that nursing care is not only reactive but also preventative, reducing the risk of complications.

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