Nursing Elites

1. Which mineral is a principal component of cell membranes?

• A. phosphorus
• B. magnesium
• C. iron
• D. iodine

Correct answer: A

Rationale: Phosphorus is the correct answer. It is a key component of cell membranes, being part of the phospholipid bilayer that provides structure and controls the movement of substances in and out of cells. Magnesium, iron, and iodine do not serve as principal components of cell membranes. Magnesium is involved in various enzymatic reactions, iron is essential for oxygen transport, and iodine plays a role in thyroid hormone synthesis.

2. A client has acute dysphagia. Which of the following nursing interventions should be included in the plan of care?

• A. Providing a straw for consumption of liquids
• B. Encouraging larger bites
• C. Placing the client in semi-Fowler's position during meals
• D. Instructing the client to tilt head forward when swallowing

Correct answer: C

Rationale: Placing the client in semi-Fowler's position during meals is the correct intervention for a client with acute dysphagia. This position helps prevent aspiration by facilitating swallowing. Providing a straw for consumption of liquids (Choice A) can increase the risk of aspiration and is not recommended for clients with dysphagia. Encouraging larger bites (Choice B) can also increase the risk of choking and aspiration. Instructing the client to tilt the head forward when swallowing (Choice D) is not the recommended technique for managing dysphagia as it does not address the underlying issue effectively.

3. A healthcare provider is on a med-surg unit caring for a client who follows the dietary laws of Orthodox Judaism. Which of the following menu selections should the healthcare provider recommend for this client?

• A. Fried catfish
• B. Broiled shrimp
• C. Pork sausage
• D. Grilled vegetables

Correct answer: D

Rationale: The correct answer is D: Grilled vegetables. Orthodox Judaism restricts the consumption of certain animals, including catfish, shrimp, and pork, making choices A, B, and C inappropriate for a client following these dietary laws. Grilled vegetables are a safe and suitable option that complies with Orthodox Jewish dietary guidelines.

4. Each statement is true regarding oral exposure to fermentable carbohydrates, except one. Which is the exception?

• A. Longer exposure leads to an increased risk of demineralization
• B. Longer exposure increases the opportunity for remineralization
• C. The Stephan curve illustrates pH changes within plaque after rinsing with a sugar solution
• D. The critical pH at which enamel decalcification occurs is 5.5 or less

Correct answer: B

Rationale: All the statements above are accurate about oral exposure to fermentable carbohydrates, except for option B. In fact, longer exposure to these carbohydrates decreases the opportunity for remineralization. This is because the process of demineralization, in which minerals are lost from the tooth enamel, is sped up by the presence of fermentable carbohydrates. The Stephan curve (option C) is a graph that demonstrates how the pH of dental plaque changes after a sugar rinse, usually dropping (becoming more acidic), which can lead to enamel decalcification. Option D is also accurate, as a pH of 5.5 or lower is the critical point at which enamel starts to decalcify.

5. Among people who are ill, significant weight loss may be masked by?

• A. dehydration
• B. a large tumor
• C. drug therapy
• D. fluid retention

Correct answer: D

Rationale: Fluid retention can mask weight loss in ill individuals as the retained fluid adds to body weight, making it difficult to detect true fat or muscle loss. Dehydration (Choice A) would actually lead to weight loss rather than masking it. While a large tumor (Choice B) could contribute to weight loss, it would not mask the weight loss itself. Drug therapy (Choice C) may cause side effects, including weight changes, but it is unlikely to mask significant weight loss in the same way that fluid retention does.

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