Nursing Elites

1. What is a major constituent of cell membranes?

• A. cholesterol
• B. phospholipid
• C. saturated
• D. triglyceride

Correct answer: B

Rationale: Phospholipids are a major component of cell membranes, providing structural integrity and facilitating cell signaling. Cholesterol (choice A) is also present in cell membranes but in smaller amounts and plays a different role. Saturated (choice C) and triglyceride (choice D) are not major constituents of cell membranes.

2. In the following ingredient list, which is the most abundant by weight? Ingredients: enriched flour, sugars, eggs, soy lecithin, artificial colors, natural flavors, milk.

• A. milk
• B. eggs
• C. sugar
• D. enriched flour

Correct answer: D

Rationale: The correct answer is 'enriched flour.' In ingredient lists, items are typically listed by weight in descending order. Therefore, the first ingredient, in this case, 'enriched flour,' is the most abundant by weight. Choice A, 'milk,' is not the most abundant as it appears last in the list. Choice B, 'eggs,' and choice C, 'sugar,' also rank lower in the list compared to 'enriched flour,' making them less abundant by weight.

3. What is the major diet-derived antioxidant found in cell membranes?

• A. B12
• B. beta-carotene
• C. vitamin E
• D. vitamin A

Correct answer: C

Rationale: The correct answer is vitamin E. Vitamin E is the major antioxidant found in cell membranes, where it plays a crucial role in protecting them from oxidative damage. Although B12, beta-carotene, and vitamin A are important nutrients with specific functions in the body, they are not the primary antioxidants found in cell membranes. Vitamin E specifically localizes in cell membranes to neutralize free radicals and prevent lipid peroxidation, making it an essential antioxidant for cellular health.

4. A client with frequent kidney stones is receiving dietary teaching from a nurse. Which of the following instructions should the nurse include?

• A. Limit your intake of dairy products.
• B. Increase your consumption of protein-rich foods.
• C. Avoid eating tree nuts, such as almonds.
• D. Take a vitamin C supplement twice daily.

Correct answer: A

Rationale: The correct answer is to instruct the client to limit their intake of dairy products. Dairy products are high in calcium and can contribute to kidney stone formation in susceptible individuals. Increasing protein intake may lead to higher excretion of calcium, which can exacerbate kidney stone formation. While tree nuts are high in oxalates, which can contribute to kidney stone formation, it is not the primary concern in this case. Vitamin C supplements can increase oxalate levels in the urine, potentially increasing the risk of kidney stone formation, so it should not be recommended.

5. A nurse is providing teaching to a client with gastroesophageal reflux. Which of the following statements by the client indicates a need for further teaching?

• A. I should elevate the head of my bed while sleeping.
• B. I drink no more than 4 cups of coffee a day.
• C. I take my time when I am eating.
• D. I avoid foods and drinks made with chocolate.

Correct answer: B

Rationale: The correct answer is B: 'I drink no more than 4 cups of coffee a day.' Excessive coffee consumption can aggravate gastroesophageal reflux due to its acidic nature. Choices A, C, and D are all appropriate self-care measures for managing gastroesophageal reflux. Elevating the head of the bed while sleeping helps prevent acid reflux, eating slowly can reduce reflux episodes, and avoiding trigger foods like chocolate can help alleviate symptoms.

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