Nursing Elites

1. 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.

2. 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.

3. What is the term for the act of performing beneficial services rather than harmful ones?

• A. Beneficence
• B. Disclosure
• C. Maleficence
• D. Justice

Correct answer: A

Rationale: The term for the act of performing beneficial services rather than harmful ones is 'Beneficence'. Beneficence refers to actions that enhance the well-being of others. In the healthcare context, beneficence ensures that health services are advantageous and beneficial to patients. 'Disclosure' (choice B) is the act of revealing information, not directly related to whether actions are beneficial or harmful. 'Maleficence' (choice C) is the opposite of beneficence, involving actions that can cause damage or harm. 'Justice' (choice D) denotes fairness and equality, important in various contexts but not specifically related to performing beneficial services.

4. The nurse cares for a hospitalized adolescent with the diagnosis of anorexia nervosa. Which nursing goal is a priority for this client?

• A. Encourage effective coping skills
• B. Restore normal eating habits
• C. Stop weight loss or restore weight
• D. Promote realistic self-image

Correct answer: C

Rationale: In the treatment of anorexia nervosa, stopping weight loss or restoring weight is a critical priority. This helps address the immediate health risks associated with severe malnutrition and supports the client's physical well-being. Encouraging effective coping skills, restoring normal eating habits, and promoting a realistic self-image are essential aspects of treatment but may come later in the care plan once the immediate risk of severe weight loss has been addressed.

5. A nurse is caring for a client with a major burn injury and is receiving TPN. Which of the following lab tests is the priority for the nurse to use to confirm the client is receiving adequate nutrition?

• A. Iron
• B. Magnesium
• C. Folic acid
• D. Prealbumin

Correct answer: D

Rationale: Prealbumin is a sensitive indicator of protein status and nutrition, making it a priority for assessing nutritional adequacy in clients receiving TPN. Iron, magnesium, and folic acid levels are important for overall health but do not specifically indicate nutritional adequacy in the context of TPN administration.

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