Nursing Elites

1. Which cells in the islet of the pancreas are responsible for synthesizing insulin?

• A. Alpha cells
• B. Beta cells
• C. Gamma cells
• D. Delta cells

Correct answer: B

Rationale: Beta cells in the islets of Langerhans in the pancreas are responsible for the production and secretion of insulin, which is crucial for regulating blood glucose levels. Alpha cells, on the other hand, produce glucagon, a hormone that raises blood glucose levels. Gamma cells and Delta cells do not exist in the islets of Langerhans; therefore, they are incorrect choices.

2. 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.

3. For a patient on a ketogenic diet, which macronutrient is primarily increased?

• A. Carbohydrates
• B. Protein
• C. Fats
• D. Fiber

Correct answer: C

Rationale: The correct answer is C: Fats. A ketogenic diet is characterized by high fat intake, moderate protein intake, and very low carbohydrate intake. This diet aims to shift the body's metabolism to use fat as the primary source of energy instead of carbohydrates. Increasing fat intake while reducing carbohydrates is essential for achieving and maintaining a state of ketosis. Therefore, choices A, B, and D are incorrect as they do not align with the macronutrient adjustments required for a ketogenic diet.

4. Each statement regarding the correlation between vitamin D and sun exposure is accurate, except one. Which is the exception?

• A. The body can produce sufficient amounts of vitamin D from sunlight.
• B. UV radiation can convert a precursor of vitamin D to vitamin D3 by penetrating uncovered skin.
• C. Sunscreen blocks the formation of vitamin D3.
• D. By the age of 70 years, the skin generally produces vitamin D at only half the level it did at the age of 20 years.

Correct answer: C

Rationale: While UV radiation can penetrate uncovered skin and convert a precursor of vitamin D to vitamin D3, sunscreen does block the formation of vitamin D3. Sunscreen is recommended by dermatologists to prevent sunburn and reduce the risk of skin cancer. The other choices are correct: the body can produce sufficient vitamin D from sunlight, UV radiation can convert a precursor of vitamin D to vitamin D3, and skin generally produces less vitamin D as a person ages.

5. Select all that apply. You are interested in learning about the effect of eating diet soft drinks on your health. Your internet search leads you to a website with the ending .com, which tells you that diet soft drinks contain sugar alcohols that can cause harm. Which of the following actions are logical?

• A. notice if there are any ads on the page that suggest conflicts of interest
• B. read about consuming diet soft drinks in the dietary guidelines for Americans
• C. visit a more credible website and compare information
• D. all of the above

Correct answer: D

Rationale: Logical steps include evaluating the credibility of the website, reading official guidelines, comparing information from credible sources, and verifying the author's qualifications.

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