Nursing Elites

1. Which physiologic role does vitamin C play in the body?

• A. Transcribing DNA to RNA
• B. Absorption and regulation of calcium
• C. Protects integrity of cellular membranes
• D. Catalyst for synthesis of blood-clotting factors

Correct answer: C

Rationale: Vitamin C plays a crucial role in protecting the integrity of cellular membranes. It is essential for collagen synthesis, which is important for wound healing and maintaining skin, blood vessels, and other tissues. Choice A is incorrect as the transcription of DNA to RNA is facilitated by vitamin A. Choice B is incorrect as calcium absorption and regulation are functions of vitamin D. Choice D is incorrect as vitamin K serves as a catalyst for the synthesis of blood-clotting factors, not vitamin C.

2. Stimulates secretion of bicarbonate ions and digestive enzymes from the pancreas to the small intestine:

• A. pepsin
• B. salivary amylase
• C. CCK
• D. secretin

Correct answer: D

Rationale: Secretin stimulates the pancreas to release bicarbonate ions to neutralize stomach acid and digestive enzymes into the small intestine.

3. What is the main function of dietary fiber in managing cholesterol levels?

• A. To reduce absorption of dietary fats
• B. To increase cholesterol synthesis
• C. To enhance protein digestion
• D. To decrease cholesterol absorption

Correct answer: D

Rationale: Dietary fiber helps lower cholesterol levels by binding to bile acids and reducing cholesterol absorption.

4. What instruction should the nurse include on weight gain during pregnancy?

• A. Failure to obtain the required weight gain during pregnancy will increase the risk of preterm birth.
• B. An obese client needs to gain as much weight as a client with a normal body mass index.
• C. A client with a normal body mass index should plan on gaining 50 pounds.
• D. Clients will need to eat for two when they are pregnant.

Correct answer: A

Rationale: Appropriate weight gain is crucial for reducing the risk of preterm birth.

5. A healthcare professional is preparing a list of resources in a community where nutritional status is significantly influenced by economics. What should the professional recommend?

• A. Public service announcement on healthy eating
• B. Educational programs on food safety
• C. The MyPyramid food guidance system
• D. The Supplemental Nutrition Assistance Program (SNAP)

Correct answer: D

Rationale: The correct answer is D, the Supplemental Nutrition Assistance Program (SNAP). SNAP provides financial assistance to help low-income individuals purchase food, directly addressing economic barriers to nutrition. Choices A, B, and C do not directly address the economic aspect of the community's nutritional status. A public service announcement on healthy eating may raise awareness but does not provide financial assistance. Educational programs on food safety focus on a different aspect of nutrition. The MyPyramid food guidance system is a tool for healthy eating but does not address the economic challenges faced by the community.

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