Nursing Elites

1. Why is atherosclerosis dangerous to arterial function?

• A. It diminishes central circulation
• B. It causes decreased blood pressure on artery walls
• C. It narrows the arterial lumen so a clot can easily block it
• D. It increases arterial elasticity

Correct answer: C

Rationale: Atherosclerosis is dangerous to arterial function because it narrows the arterial lumen, increasing the risk of a clot completely blocking the blood flow. This can lead to severe cardiovascular events such as heart attacks or strokes. Choice A is incorrect since atherosclerosis does not primarily diminish central circulation, but rather, it impedes local blood flow where the plaque is present. Choice B is also incorrect as atherosclerosis increases the pressure on artery walls due to the narrowed space for blood flow, not decrease it. Lastly, choice D is incorrect as atherosclerosis causes the arteries to lose their elasticity, not increase it.

2. 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.

3. In conducting a cleansing enema, how does the nurse position the client?

• A. Right lateral position
• B. Left lateral position
• C. Right Sim's position
• D. Left Sim's position

Correct answer: B

Rationale: In preparing a patient for a cleansing enema, the nurse typically positions the patient in the left lateral position. This position allows for the best flow of the solution due to the anatomical configuration of the colon. The right lateral position, right Sim's position, and left Sim's position are not typically used for this procedure. The rationale provided initially is incorrect as it pertains to lung expansion and postural drainage, which are not relevant to a cleansing enema procedure.

4. Which food items should be consumed with nonheme iron to increase its absorption, according to a nurse's education plan for clients?

• A. Kiwi
• B. Strawberries
• C. Coffee
• D. Kiwi and Strawberries

Correct answer: D

Rationale: The correct answer is D: Kiwi and Strawberries. Both of these fruits are high in vitamin C, a nutrient known to enhance the absorption of nonheme iron. Vitamin C facilitates the conversion of nonheme iron into a form that is more readily absorbed by the body, thereby enhancing iron intake. In contrast, coffee (Choice C) contains certain compounds that can actually inhibit the absorption of iron, making it a less desirable choice when the goal is to increase iron absorption. Consequently, Choices A (Kiwi), B (Strawberries), and C (Coffee) were specifically picked to highlight the varying effects of different food items on nonheme iron absorption.

5. Which mineral-containing amino acids help to form the shape of proteins?

• A. phosphorus
• B. sulfur
• C. selenium
• D. iron

Correct answer: B

Rationale: The correct answer is B: sulfur. Sulfur-containing amino acids like cysteine and methionine play a crucial role in forming disulfide bonds within proteins. These bonds are essential for the proper folding and structural stability of proteins. Phosphorus (choice A), selenium (choice C), and iron (choice D) do not directly contribute to shaping proteins through bond formation.

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