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. What can be a potential consequence of consuming insufficient fat?
- A. constipation
- B. marasmus
- C. infertility
- D. diverticulitis
Correct answer: C
Rationale: The correct answer is C. Fat is crucial for the production of hormones, including reproductive hormones. Consuming too little fat can lead to hormonal imbalances, affecting fertility. Choices A, B, and D are incorrect. Constipation is more commonly associated with insufficient fiber intake, marasmus is severe malnutrition due to overall calorie deficiency, and diverticulitis is often related to low fiber intake and not specifically low fat consumption.
3. Which client is most likely to need regular injections of vitamin B12?
- A. The client with malabsorption syndrome.
- B. The client following a vegan eating pattern.
- C. The client whose stomach does not produce intrinsic factors.
- D. The client with alcoholism.
Correct answer: C
Rationale: The correct answer is C. The client whose stomach does not produce intrinsic factors is most likely to need regular injections of vitamin B12. Intrinsic factor is essential for the absorption of vitamin B12. Without intrinsic factor, the client cannot absorb vitamin B12 from food, necessitating the need for regular injections. Choices A, B, and D do not directly impact the production of intrinsic factors in the stomach, so they are less likely to result in the need for vitamin B12 injections.
4. Mario listens to Richard’s bilateral sounds and finds that congestion is in the upper lobes of the lungs. The appropriate position to drain the anterior and posterior apical segments of the lungs when Mario does percussion would be:
- A. Client lying on his back then flat on his abdomen on Trendelenburg position
- B. Client seated upright in bed or on a chair then leaning forward in sitting position then flat on his back and on his
- C. Client lying flat on his back and then flat on his abdomen
- D. Client lying on his right then left side on Trendelenburg position
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.
5. Which food has the highest calcium content?
- A. 1 cup of carrot strips
- B. 3 oz of canned salmon
- C. 1 plain baked potato
- D. 1 cup of chopped chicken breast
Correct answer: 3 oz of canned salmon
Rationale: The highest source of calcium among the given choices is the 3 oz of canned salmon. This is due to the presence of bones in canned salmon, which are rich in calcium. The other options, including 1 cup of carrot strips, 1 plain baked potato, and 1 cup of chopped chicken breast, do not contain as much calcium due to the nature of their composition and lack of bone content.