Nursing Elites

1. Cyanocobalamin is a form of which vitamin?

• A. Vitamin B1
• B. Vitamin B2
• C. Vitamin B3
• D. Vitamin B12

Correct answer: D

Rationale: Cyanocobalamin is a synthetic form of Vitamin B12. Vitamin B12 is essential for various bodily functions, including red blood cell formation, neurological function, and DNA synthesis. It is not to be confused with Vitamin B1, B2, or B3, which are separate vitamins with different roles in the body.

2. Which step of the management process is concerned with Policy making and Stating the goals and objective of the institution?

• A. Planning
• B. Organizing
• C. Directing
• D. Controlling

Correct answer: C

Rationale: Effective nursing care involves comprehensive assessments that address all aspects of a patient's condition, ensuring that interventions are appropriately targeted and outcomes are optimized.

3. Which enzyme digests fiber in the large intestine?

• A. salivary amylase
• B. pancreatic amylase
• C. cellulase
• D. none of the above

Correct answer: D

Rationale: The correct answer is 'none of the above.' Human digestive enzymes like salivary amylase and pancreatic amylase cannot digest fiber. Instead, fiber is fermented by gut bacteria in the large intestine. Cellulase, which is an enzyme produced by some animals and microorganisms, can break down cellulose found in plants, but it is not a human digestive enzyme, making it an incorrect choice in this context.

4. A nurse is developing a program about strategies to prevent foodborne illnesses for a community group. The nurse should plan to include which of the following recommendations? (Select one that does not apply).

• A. Keep cold food temperatures below 4.4�C (40�F).
• B. Reheat leftovers before eating.
• C. Wash raw vegetables thoroughly in clean water.
• D. Keep cooked foods at 48.9�C (120�F).

Correct answer: D

Rationale: The correct answer is to keep cooked foods at 48.9�C (120�F). This temperature is too low to keep cooked foods safe from bacterial growth. The ideal temperature to keep cooked foods safe is above 60�C (140�F). Choices A, B, and C are all important strategies to prevent foodborne illnesses. Keeping cold food temperatures below 4.4�C (40�F) helps prevent bacterial growth, reheating leftovers before eating kills any bacteria that may have grown during storage, and washing raw vegetables thoroughly in clean water helps remove dirt and bacteria.

5. What physiologic role does calcium play in the body?

• A. Blood clotting, transmission of nerve impulses, muscle contraction and relaxation
• B. Calcium homeostasis, structural integrity of heart muscle
• C. No known metabolic function, caries-preventing properties
• D. ATP energy release; metabolism of fats, carbohydrates, proteins; regulates acid-base balance.

Correct answer: A

Rationale: The correct answer is A: 'Blood clotting, transmission of nerve impulses, muscle contraction and relaxation.' Calcium plays a crucial role in various physiological functions such as blood clotting, transmission of nerve impulses, muscle contraction and relaxation, membrane permeability, and activation of certain enzymes. Choice B is incorrect because while calcium is involved in calcium homeostasis, it is not the only role it plays in the body. Choice C is incorrect as calcium indeed has several known metabolic functions, and it is not solely for preventing caries. Choice D is also incorrect as the functions mentioned are primarily carried out by other nutrients and not specifically by calcium.

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