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. To prevent recurrent attacks on client with glomerulonephritis, the nurse instructs the client to:

• A. Take a shower instead of tub baths
• B. Avoid situations that involve physical activity
• C. Continue the same restriction on fluid intake
• D. Seek early treatment for respiratory infection

Correct answer: C

Rationale: Effective nursing care involves comprehensive assessments that address all aspects of a patient's condition, ensuring that interventions are appropriately targeted and outcomes are optimized.

3. A healthcare provider is evaluating a client who reports paresthesia of the hands and feet. The provider should identify this manifestation as an indication of which of the following dietary deficiencies?

• A. Iron
• B. Riboflavin
• C. Vitamin C
• D. Vitamin B12

Correct answer: D

Rationale: Correct! Vitamin B12 deficiency can lead to neurological symptoms, including paresthesia (tingling or numbness) of the hands and feet, due to its role in nerve health. Iron deficiency is more commonly associated with anemia symptoms like fatigue and pallor. Riboflavin deficiency can cause mouth and skin changes. Vitamin C deficiency is linked to scurvy symptoms like bleeding gums and easy bruising.

4. 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.

5. Which of the following suggestions is the healthiest for Miguel, who is always hungry and never seems to feel full despite eating enough calories?

• A. Switch out energy-dense foods with more nutrient-dense foods that are more likely to make him feel full
• B. Drink adequate amounts of water
• C. A, B
• D. Eat foods with more fat, as fat slows gastric emptying and will make him feel more full

Correct answer: C

Rationale: The correct answer is A and B. Switching to more nutrient-dense foods can help Miguel feel full despite eating enough calories. Nutrient-dense foods provide essential nutrients and are more satisfying. Drinking adequate water is also crucial for overall health and can help with feelings of fullness. Choice D is incorrect because while fat can contribute to satiety, it should be consumed in balance with other nutrients. Consuming foods with high fat content excessively may lead to other health issues and does not address the underlying problem of feeling constantly hungry despite eating.

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