Nursing Elites

1. In which individual does negative nitrogen balance occur?

• A. Adult who engages in a weight-training program.
• B. Woman who is pregnant or lactating.
• C. Child who is growing.
• D. Older adult with anorexia.

Correct answer: D

Rationale: Negative nitrogen balance occurs when the body loses more nitrogen than it gains. This imbalance is often seen in conditions like anorexia in older adults, where insufficient protein intake leads to muscle breakdown and negative nitrogen balance. Choices A, B, and C do not typically lead to negative nitrogen balance as seen in anorexia in older adults.

2. In addition to active transport, which process is involved in absorbing food in the small intestine?

• A. pinocytosis
• B. excretion
• C. phagocytosis
• D. electrochemical diffusion

Correct answer: A

Rationale: The correct answer is pinocytosis. Pinocytosis is a process where cells in the small intestine absorb nutrients by engulfing them. This process is different from phagocytosis, which involves engulfing large particles, and excretion, which is the removal of waste products. Electrochemical diffusion is not directly involved in the absorption of food in the small intestine.

3. What are oligosaccharides composed of?

• A. 3 to 10 monosaccharide units.
• B. large portions of partially digested starch.
• C. nonnutritive sweeteners.
• D. used for weight management.

Correct answer: A

Rationale: Oligosaccharides are carbohydrates composed of 3 to 10 monosaccharide units, making choice A the correct answer. Choice B is incorrect as oligosaccharides do not contain partially digested starch. Choice C is incorrect as nonnutritive sweeteners are a different category of compounds. Choice D is incorrect as oligosaccharides are not primarily used for weight management.

4. What does the Tolerable Upper Intake Level (UL) represent?

• A. a replacement for Recommended Dietary Allowances (RDAs).
• B. a safe level of intake for people of all ages.
• C. a potentially toxic level of intake of a nutrient.
• D. the highest amount of a nutrient that can be safely consumed.

Correct answer: D

Rationale: The Tolerable Upper Intake Level (UL) represents the highest amount of a nutrient that can be safely consumed without causing adverse health effects. It is not a replacement for Recommended Dietary Allowances (RDAs) (choice A) which are nutrient intake recommendations. While the UL is established to prevent toxicity, it is not a completely safe level for people of all ages (choice B). It is also not a potentially toxic level of intake of a nutrient (choice C), but rather the level that is unlikely to cause adverse health effects.

5. Which of the following saturated fats does not contain cholesterol?

• A. Butter
• B. Coconut oil
• C. Eggs
• D. Fish

Correct answer: B

Rationale: The correct answer is B, Coconut oil. Coconut oil is a saturated fat derived from plants and does not contain cholesterol, unlike the other options. Butter (choice A) is an animal-derived saturated fat that contains cholesterol. Eggs (choice C) and fish (choice D) also contain cholesterol, making them incorrect choices. Therefore, coconut oil is the only option that is a saturated fat and does not contain cholesterol.

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