Nursing Elites

1. 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.

2. Diseases of the heart and blood vessels are collectively referred to as _____.

• A. Coronary artery disease
• B. Cardiovascular disease
• C. Coronary heart disease
• D. Coronary vessel disease

Correct answer: B

Rationale: The correct term for diseases of the heart and blood vessels is cardiovascular disease. While coronary artery disease (Choice A) specifically involves the narrowing of coronary arteries, it is just one type of cardiovascular disease. Coronary heart disease (Choice C) is also a specific condition related to the heart's blood vessels. Choice D, coronary vessel disease, is not a commonly used term to describe diseases of the heart and blood vessels. Therefore, Choice B, cardiovascular disease, is the most inclusive and appropriate term to refer to these conditions.

3. Which systolic blood pressure measurement is classified as prehypertension?

• A. 106 mmHg
• B. 119 mmHg
• C. 130 mmHg
• D. 141 mmHg

Correct answer: B

Rationale: According to the blood pressure classification, a systolic blood pressure between 120-139 mmHg is considered prehypertension. This range indicates an increased risk for developing hypertension if not managed appropriately. Therefore, a systolic blood pressure of 119 mmHg falls into the prehypertension category. A systolic pressure of 106 mmHg is within the normal range, while 130 mmHg and above would be classified as stage 1 and stage 2 hypertension respectively, not prehypertension.

4. Medications that reduce stomach acidity can impair the absorption of _____.

• A. calcium
• B. iron
• C. vitamin D
• D. vitamin C

Correct answer: B

Rationale: Reduced stomach acidity impairs the absorption of iron, as an acidic environment is necessary for optimal iron absorption in the stomach. Choices A, C, and D are incorrect as medications that reduce stomach acidity typically do not significantly affect the absorption of calcium, vitamin D, or vitamin C.

5. In the management process, the periodic checking of the results of action to make sure that it coincides with the goal of the institution is termed as:

• A. Planning
• B. Evaluating
• C. Directing
• D. Organizing

Correct answer: B

Rationale: The correct answer is B: Evaluating. Evaluating involves the periodic checking of results to ensure they align with the institution's goals. Planning (choice A) is about setting goals and determining the actions required to achieve them. Directing (choice C) involves overseeing and guiding the activities of individuals or teams to accomplish goals. Organizing (choice D) is about arranging resources and tasks to achieve objectives. In the context of the management process described, evaluating best fits the action of checking results against goals.

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