Nursing Elites

1. What is the primary function of carbohydrates as a food source?

• A. Regulate metabolic processes.
• B. Build body tissue.
• C. Supply energy.
• D. Provide bulk.

Correct answer: C

Rationale: The primary function of carbohydrates as a food source is to supply energy. Carbohydrates are the body's main source of energy, providing fuel for various physiological functions. Choice A is incorrect because carbohydrates do not primarily regulate metabolic processes; that role is mainly attributed to enzymes and hormones. Choice B is incorrect because proteins are primarily responsible for building body tissue. Choice D is incorrect because fiber, not all carbohydrates, provides bulk in the diet.

2. 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.

3. Fructose is the sugar found in:

• A. bread.
• B. gelatin desserts.
• C. sugar-coated cereals.
• D. honey and fruit.

Correct answer: D

Rationale: Fructose is a sugar naturally found in honey and fruit. While bread contains carbohydrates, it does not primarily consist of fructose. Gelatin desserts are more likely to contain added sugars like sucrose rather than fructose. Sugar-coated cereals typically contain sucrose or other added sugars, not just fructose. Therefore, the correct answer is honey and fruit as they naturally contain fructose.

4. A protein that contains all the essential amino acids in the proper proportions is called:

• A. simple
• B. indispensable
• C. complete
• D. complementary

Correct answer: C

Rationale: A complete protein is the term used to describe a protein that contains all the essential amino acids required by the body in the right proportions. This makes choice C the correct answer. Choice A, 'simple,' is incorrect as it does not reflect the concept of essential amino acids. Choice B, 'indispensable,' while related to importance, does not specifically address the presence of all essential amino acids. Choice D, 'complementary,' is also incorrect as it refers to combining proteins to achieve a complete amino acid profile, rather than describing a protein that already contains all essential amino acids.

5. A high blood cholesterol level appears to be associated with the development of:

• A. chronic kidney disease.
• B. coronary heart disease.
• C. Alzheimer’s disease.
• D. Addison’s disease.

Correct answer: B

Rationale: A high blood cholesterol level is associated with an increased risk of developing coronary heart disease. Elevated cholesterol levels can lead to the buildup of plaque in the arteries, increasing the risk of heart disease. Choices A, C, and D are incorrect as high blood cholesterol is not primarily linked to chronic kidney disease, Alzheimer’s disease, or Addison’s disease.

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