Nursing Elites

1. Magnesium's major functions in the body would be least likely to include which of the following?

• A. allowing muscles to relax after contraction
• B. assisting the operation of hundreds of enzymes
• C. synthesis of protein in the soft tissues
• D. regulation of body temperature

Correct answer: D

Rationale: Magnesium plays a key role in muscle relaxation, enzyme operation, and protein synthesis, but it is not directly involved in regulating body temperature.

2. An advance directive known as a durable power of attorney involves appointing another person called a(n) _____ to act as the decision maker in the event of the patient's incapacitation.

• A. witness
• B. primary caregiver
• C. health care agent
• D. state proxy

Correct answer: C

Rationale: The correct answer is 'health care agent.' A health care agent is appointed through a durable power of attorney to make medical decisions on behalf of a patient who becomes incapacitated. The term 'witness' (choice A) is incorrect because a witness only observes the signing of the directive and does not make decisions. 'Primary caregiver' (choice B) is also incorrect as they may provide care but are not necessarily legally empowered to make decisions. 'State proxy' (choice D) is not commonly used in the context of advance directives or health care decision making, making it an incorrect choice.

3. What is the procedure called when direct observations are used to generate an estimate of a client's current food intake?

• A. Food diary
• B. 24-hour recall
• C. Kilocalorie count
• D. Nutrient surveillance record

Correct answer: C

Rationale: A kilocalorie count is the correct answer as it involves directly observing a client's food intake, which is often used in hospitals to accurately assess nutritional intake and ensure it meets dietary requirements. A food diary (Choice A) is typically self-reported by the client and not directly observed. A 24-hour recall (Choice B) is also usually self-reported and relies on a client's memory of the past 24 hours, which can be unreliable. A nutrient surveillance record (Choice D) is a broader term for tracking nutrient intake in a population and is not specific to the direct observation of an individual's food intake.

4. A nurse is assessing the nutritional status of an infant who is 6 months old. The infant weighed 2.7 kg at birth. Which of the following indicates to the nurse that the infant is within the expected range?

• A. 5.5 kg
• B. 6.4 kg
• C. 4.5 kg
• D. 3.6 kg

Correct answer: B

Rationale: The correct answer is B, 6.4 kg. An infant's weight should approximately double by 6 months. In this case, starting from a birth weight of 2.7 kg, a weight of 6.4 kg at 6 months indicates normal growth. Choice A (5.5 kg) is below the expected range for a 6-month-old infant. Choices C (4.5 kg) and D (3.6 kg) are also below the expected weight gain, indicating inadequate growth.

5. In managing Type 2 diabetes, what is the most important dietary change?

• A. Increase carbohydrate intake
• B. Increase fiber intake
• C. Increase protein intake
• D. Reduce fat intake

Correct answer: B

Rationale: Increasing fiber intake can help regulate blood sugar levels in patients with Type 2 diabetes.

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