Nursing Elites

1. An essential nutrient must:

• A. be eaten every day
• B. be obtained by the diet
• C. be water soluble
• D. be eaten at every meal

Correct answer: B

Rationale: The correct answer is B: 'be obtained by the diet.' Essential nutrients are those that the body cannot synthesize in sufficient quantities and must therefore be obtained through the diet. Choice A is incorrect because not all essential nutrients need to be consumed daily; the frequency of consumption varies. Choice C is incorrect because not all essential nutrients are water-soluble; they can be water-soluble or fat-soluble. Choice D is incorrect because essential nutrients do not need to be consumed at every meal, but rather need to be included in the overall diet regularly.

2. A nurse is educating a group of older adults in a community center on weight management using the BMI scale. Using the client's height and weight to calculate BMI, which of the following clients has a healthy BMI?

• A. A client with a weight of 128 lb and height of 70 inches
• B. A client with a weight of 150 lb and height of 68 inches
• C. A client with a weight of 200 lb and height of 72 inches
• D. A client with a weight of 133 lb and height of 60 inches

Correct answer: A

Rationale: To determine a healthy BMI, we need to calculate it using the formula: BMI = weight (lbs) / height^2 (inches) x 703. For choice A, BMI = 128 / (70 x 70) x 703 = 18.38, which falls within the healthy BMI range of 18.5-24.9. Therefore, choice A is correct. Choices B, C, and D have BMIs of 22.8, 27.1, and 26.1, respectively, which are outside the healthy range. Thus, choices B, C, and D are incorrect.

3. Which mineral is essential for wound healing?

• A. iodine
• B. chromium
• C. zinc
• D. sulfate

Correct answer: C

Rationale: Zinc plays a critical role in wound healing due to its involvement in cell proliferation, immune function, and protein synthesis, all of which are essential for tissue repair.

4. What are the potential consequences of damage to the stomach?

• A. Reduced digestion of carbohydrates
• B. Inability to produce or secrete bile
• C. Inability to produce or secrete gastric acid
• D. Increased ability to produce or secrete intrinsic factor

Correct answer: C

Rationale: Damage to the stomach can lead to a reduced ability to produce gastric acid (Choice C) and intrinsic factor, the latter of which is crucial for vitamin B12 absorption (Choice D). That's why these two choices are correct. The stomach doesn't play a direct role in the digestion of carbohydrates (Choice A) as this process primarily occurs in the small intestine with the help of pancreatic enzymes. Similarly, bile is produced by the liver and stored in the gallbladder, not the stomach, hence stomach damage wouldn't lead to an inability to produce or secrete bile (Choice B).

5. In taking the client’s blood pressure, the nurse should position the client’s arm:

• A. At the level of the heart
• B. Slightly above the level of the heart
• C. At the 5th intercostals space midclavicular line
• D. Below the level of the heart

Correct answer: A

Rationale: Proper patient positioning is essential for maximizing lung expansion and promoting the drainage of secretions. Postural drainage techniques rely on gravity to help clear different lung segments, which is critical in preventing complications such as atelectasis or pneumonia in immobilized patients.

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