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. The nurse is planning education about appropriate protein food choices for a client who has recently been prescribed a renal diet. Which protein food items should the nurse include in the education?

• A. Yogurt, seeds, and lentils
• B. Beef, bacon, and nuts
• C. Peanut butter, beans, and peas
• D. Poultry, eggs, and fish

Correct answer: D

Rationale: The correct answer is D: Poultry, eggs, and fish. These protein sources are high-quality proteins suitable for a renal diet as they provide essential amino acids without excessive amounts of potassium or phosphorus. Choice A, yogurt, seeds, and lentils, may be high in potassium and phosphorus, which could be restricted in a renal diet. Choice B, beef, bacon, and nuts, are also high in phosphorus and may not be ideal for a renal diet. Choice C, peanut butter, beans, and peas, are high in potassium and phosphorus, making them less suitable for a renal diet.

3. 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.

4. What special consideration should be taken into account when Mario prepares Richard for postural drainage and percussion?

• A. Monitoring a respiratory rate of 16 to 20 per minute
• B. Assessing the client's ability to tolerate sitting and lying positions
• C. Ensuring the client is free of signs of infection
• D. Knowing the time of the client's last food and fluid intake

Correct answer: A

Rationale: The correct answer is A, 'Monitoring a respiratory rate of 16 to 20 per minute'. When performing postural drainage and percussion, it is crucial to monitor the respiratory rate to ensure the safety and effectiveness of the procedure. Choice B, 'Assessing the client's ability to tolerate sitting and lying positions', while important, is not directly related to the specifics of postural drainage and percussion. Similarly, option C, 'Ensuring the client is free of signs of infection', although important, is not directly linked to the procedure. Option D, 'Knowing the time of the client's last food and fluid intake', might be relevant for other procedures, but it is not the primary consideration for postural drainage and percussion.

5. Age group categories within older adults are classified as 'young old,' 'old,' and 'oldest old,' the latter of which comprises adults aged _____.

• A. 70-80 years
• B. 75-84 years
• C. 80-90 years
• D. 85 years or older

Correct answer: D

Rationale: The 'oldest old' category includes adults aged 85 years or older. This age group faces unique health challenges and requires specialized care. Choices A, B, and C are incorrect as they do not fall within the age range specified for the 'oldest old' category.

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