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How many calories are contained in a food that has 15 grams of carbohydrates, 4 grams of protein, and 10 grams of fat?
- A. 106
- B. 124
- C. 166
- D. 202
Correct Answer: C
Rationale: To calculate the total calories in a food item, you can use the following conversions: every 1 gram of carbohydrate provides 4 calories, 1 gram of protein provides 4 calories, and 1 gram of fat provides 9 calories. Therefore, for this food item, multiply 15 grams of carbohydrates by 4 calories/gram, 4 grams of protein by 4 calories/gram, and 10 grams of fat by 9 calories/gram. The calculation would be (15 * 4) + (4 * 4) + (10 * 9) = 60 + 16 + 90 = 166 calories. Choice A (106) is incorrect because it does not consider the calories from fat. Choice B (124) is incorrect as it underestimates the calories by not including all macronutrients. Choice D (202) is incorrect as it overestimates the calories by adding up the values incorrectly.
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A nurse is teaching a client who needs to increase their daily fluid intake. Which of the following foods has the highest percentage of water by weight?
- A. Yogurt
- B. Milk
- C. Lettuce
- D. Honey
Correct Answer: C
Rationale: The correct answer is Lettuce. Lettuce has the highest percentage of water by weight among the options provided, making it an excellent choice to increase fluid intake. Yogurt and milk have some water content but are not as high in water percentage as lettuce. Honey, on the other hand, contains very little water and is not a good choice for increasing fluid intake.
A client with diabetes is being taught by a nurse about the dietary source that should provide the greatest percentage of calories. Which of the following statements indicates the client understands the teaching?
- A. "Most of my calories each day should be from fats."?
- B. "I should eat more calories from complex carbohydrates than anything else."?
- C. "Simple sugars are needed more than other calorie sources."?
- D. "Protein should be my main source of calories."?
Correct Answer: B
Rationale: The correct answer is '"I should eat more calories from complex carbohydrates than anything else."?' Clients with diabetes should focus on complex carbohydrates as their primary calorie source because they have a lower impact on blood sugar levels compared to simple sugars or fats. Choice A is incorrect because a high intake of fats can lead to various health issues. Choice C is incorrect because simple sugars can cause rapid spikes in blood sugar levels. Choice D is incorrect as while protein is important, it should not be the main source of calories for someone with diabetes.
A client is being prepared for placement of a catheter for total parenteral nutrition. Which of the following access sites should be planned for catheter insertion?
- A. Left antecubital vein
- B. Right subclavian vein
- C. Right femoral artery
- D. Left arm radial artery
Correct Answer: B
Rationale: The correct answer is the Right subclavian vein. When preparing a client for placement of a catheter for total parenteral nutrition, the preferred access site for catheter insertion is the subclavian vein due to its large size, central location, and lower risk of infection compared to peripheral veins. The other options provided (Left antecubital vein, Right femoral artery, and Left arm radial artery) are not suitable access sites for central venous catheter insertion for total parenteral nutrition.
A healthcare provider is teaching a client about nutritional requirements necessary to promote wound healing. Which of the following nutrients should the provider include in the teaching?
- A. Protein
- B. Calcium
- C. Vitamin B1
- D. Vitamin D
Correct Answer: A
Rationale: Protein is crucial for wound healing as it plays a vital role in tissue repair and synthesis. Calcium is important for bone health but not directly related to wound healing. Vitamin B1 is essential for energy production but not specifically significant for wound healing. Vitamin D is essential for bone health and immune function but is not a primary nutrient emphasized for wound healing.
A nurse is instructing a group of clients regarding calcium-rich foods. Which of the following foods should the nurse include in the teaching as the best source of calcium?
- A. 1⁄2 cup ice cream
- B. 1 ounce Swiss cheese
- C. 1 cup milk
- D. 1 cup cottage cheese
Correct Answer: D
Rationale: Cottage cheese is the best source of calcium among the options provided. It is rich in calcium and provides a significant amount per serving. 1 cup of cottage cheese contains more calcium compared to 1⁄2 cup of ice cream, 1 ounce of Swiss cheese, or 1 cup of milk. Ice cream is not a significant source of calcium and is often high in sugar and fat. Swiss cheese and milk contain calcium, but cottage cheese has a higher calcium content per serving, making it the best choice for meeting calcium needs.