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. The purpose of chest percussion and vibration is to loosen secretions in the lungs. The difference between the procedures is:

• A. Percussion uses only one hand, while vibration uses both hands
• B. Percussion delivers cushioned blows to the chest with cupped palms, while vibration gently shakes secretions loose
• C. In both percussion and vibration, the hands are not on top of each other, and hand action is not in tune with the client's breath
• D. Percussion slaps the chest to loosen secretions, while vibration shakes the secretions along with the inhalation

Correct answer: D

Rationale: Chest percussion involves the use of rhythmic tapping to dislodge mucus from the lungs, facilitating its movement toward the larger airways where it can be expelled. This technique is particularly important in conditions where mucus retention is a significant risk factor for infection. The key difference between chest percussion and vibration is that percussion involves slapping the chest to loosen secretions, while vibration involves shaking the secretions along with the inhalation, aiding in moving the loosened secretions upwards for easier removal. Choices A, B, and C do not accurately describe the main difference between chest percussion and vibration, making them incorrect.

3. Which of the following nursing interventions is appropriate after a total thyroidectomy?

• A. Place pillows under your patient’s shoulders.
• B. Raise the knee-gatch to 30 degrees
• C. Keep you patient in a high-fowler’s position.
• D. Support the patient’s head and neck with pillows and sandbags.

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.

4. A client states they are taking greater than the recommended daily allowance of vitamin E to prevent cataracts. Which complication should the nurse educate the client as related to taking excessive amounts of vitamin E?

• A. Lung cancer
• B. Stroke
• C. Diarrhea
• D. Liver damage

Correct answer: B

Rationale: The correct answer is B: Stroke. High doses of vitamin E supplements have been associated with an increased risk of hemorrhagic stroke due to its blood-thinning properties. Option A, lung cancer, is not a known complication of excessive vitamin E intake. Option C, diarrhea, is more commonly associated with excessive intake of other vitamins or minerals. Option D, liver damage, is not a commonly reported complication of vitamin E overdose.

5. A pregnant woman has applied to use WIC services to supplement her food intake. The WIC program would provide vouchers for _____ in this situation.

• A. lean beef
• B. fruit-flavored yogurt
• C. whole grain bread
• D. refried beans

Correct answer: C

Rationale: The correct answer is C: whole grain bread. The WIC program aims to provide nutritious foods to support a healthy diet during pregnancy. Whole grain bread is a good source of fiber and essential nutrients. Choice A, lean beef, is a protein source but may not be as versatile as whole grain bread in providing a variety of nutrients essential during pregnancy. Choice B, fruit-flavored yogurt, may contain added sugars and may not offer the same level of essential nutrients as whole grain bread. Choice D, refried beans, is a good source of protein and fiber, but whole grain bread is often a staple recommended in pregnancy for its nutritional benefits.

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