each is true regarding oral exposure to fermentable carbohydrates except one which is the exception

ATI RN

ATI Nutrition Practice A

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. You are teaching your clients the difference between Type I (IDDM) and Type II (NDDM) diabetes. Which of the following statements is true?

A. Both types of diabetes mellitus clients are prone to developing ketosis.
B. Type II (NIDDM) is more common and preventable compared to Type I (IDDM) diabetes, which is genetic.
C. Type I (IIDM) is characterized by fasting hyperglycemia.
D. Type II (NIDDM) is characterized by abnormal immune response.

Correct answer: D

Rationale: The correct answer is D. Type II diabetes (NIDDM) is characterized by insulin resistance and a relative lack of insulin. It is not primarily characterized by an abnormal immune response. Option A is incorrect because only Type I diabetes clients are prone to developing ketosis due to a lack of insulin. Option B is incorrect because while Type II diabetes is more common and often preventable through lifestyle changes, it is not solely genetic. Option C is incorrect because Type I diabetes, not Type II, is characterized by fasting hyperglycemia due to an absolute lack of insulin production.

3. A nurse is teaching a client about strategies to prevent constipation. Which of the following statements by the client indicates an understanding of the teaching?

A. Drinking four to five glasses of water per day will prevent constipation.
B. I should consume mineral oil once per day.
C. Eating foods high in fiber will make elimination easier.
D. I can skip a meal if I feel bloated.

Correct answer: C

Rationale: The correct answer is C. Eating foods high in fiber increases stool bulk and promotes easier elimination, thus preventing constipation. Choices A, B, and D are incorrect. Drinking water is important, but the emphasis should be on high-fiber foods. Mineral oil is not a recommended first-line treatment for constipation, and skipping meals can disrupt regular bowel movements, potentially leading to constipation.

4. Which is NOT a characteristic or function of lipids?

A. Involved in energy metabolism and storage
B. Provide insulation and protection
C. Act as hormones that regulate the body
D. Are hydrophilic

Correct answer: D

Rationale: Lipids are known for several functions including involvement in energy metabolism and storage (Choice A), providing insulation and protection (Choice B), and acting as hormones that regulate the body (Choice C). However, lipids are not hydrophilic (water-attracting), contrary to choice D. They are actually hydrophobic, meaning they repel water and do not mix well with it. This is a key property that differentiates them from many other biological molecules.

5. The community/Public Health Bag is:

A. a requirement for home visits
B. an essential and indispensable equipment of the community health nurse
C. contains basic medications and articles used by the community health nurse
D. a tool used by the Community health nurse is rendering effective nursing procedures during a home visit

Correct answer: B

Rationale: Nursing interventions should be grounded in a deep understanding of the physiological processes involved, ensuring that care provided is both effective and efficient.