Nursing Elites

1. Which of the following are examples of mechanical digestion? Select all that apply.

• A. Heat
• B. Segmentation
• C. Option B and D
• D. Peristalsis

Correct answer: C

Rationale: Mechanical digestion involves physical movements that break down food in the digestive tract. Segmentation (choice B) and peristalsis (choice D), which are both movements of the muscles in the digestive tract, are examples of this type of digestion. Heat (choice A), on the other hand, is related to chemical digestion, not mechanical digestion. Therefore, choice C (Option B and D) is the correct answer as it includes both examples of mechanical digestion provided in the choices. Choices A and D are incorrect because heat (choice A) is not a mechanical digestion process, and peristalsis (choice D) is a movement that helps propel food along the digestive tract but is not directly involved in breaking down food physically.

2. What is the primary purpose of dietary fiber in the diet?

• A. Improving digestion
• B. Providing energy
• C. Aiding in the absorption of vitamins
• D. Reducing cholesterol

Correct answer: D

Rationale: The primary purpose of dietary fiber in the diet is to reduce cholesterol levels. While it does aid in digestion by promoting regular bowel movements, its main role is in lowering cholesterol. Choice A is partially correct but not the primary purpose. Choice B is incorrect as fiber is not a direct source of energy. Choice C is also incorrect as the primary role of fiber is not in the absorption of vitamins.

3. What instruction should a nurse include when teaching a client who has recently been prescribed a low-sodium diet?

• A. Avoid foods such as smoked meats and frozen dinners.
• B. Select foods with less than 4g of sodium as indicated on food labels.
• C. Use soy sauce for flavoring foods instead of table salt.
• D. Processed and prepared foods are typically low in sodium.

Correct answer: A

Rationale: The correct answer is A, which directs the client to avoid foods such as smoked meats and frozen dinners. These types of foods are typically high in sodium, making them unsuitable for a low-sodium diet. Option B is incorrect because foods with less than 4g of sodium might still be high in sodium for individuals on low-sodium diets. The daily recommended intake of sodium for a low-sodium diet is usually around 1.5g to 2g. Hence, 4g of sodium in a single food product can be excessive. Option C is incorrect as soy sauce, although a different source of flavor, is also high in sodium and should be used sparingly, if at all, in a low-sodium diet. Option D is incorrect because processed and prepared foods are usually not low in sodium. In fact, these foods often have high sodium content due to added salts and preservatives.

4. What food is most likely a source of trans fats in the diet?

• A. red meat
• B. peanut oil
• C. corn chips
• D. salmon

Correct answer: C

Rationale: The correct answer is C: corn chips. Corn chips, especially those processed and fried, are a common source of trans fats, which are associated with an increased risk of heart disease. Red meat (choice A) and salmon (choice D) do not typically contain trans fats unless they are processed or cooked in trans fat-containing oils. Peanut oil (choice B) can be a healthier option compared to trans fat-containing oils.

5. A nurse is reviewing the laboratory results for a client who has a history of atherosclerosis and notes elevated cholesterol levels. Which of the following statements by the client indicates the nurse should plan follow-up teaching on a low-cholesterol diet?

• A. "I flavor my meat with lemon juice."?
• B. "I eat two eggs for breakfast each morning."?
• C. "I cook my food with canola oil."?
• D. "I take an omega-3 supplement daily."?

Correct answer: B

Rationale: The correct answer is B. Eggs are high in cholesterol, so someone with elevated cholesterol levels, especially with a history of atherosclerosis, should be cautious about egg consumption. Choices A, C, and D are not as concerning for cholesterol levels. Lemon juice, canola oil, and omega-3 supplements do not significantly impact cholesterol levels compared to consuming eggs regularly.

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