which is an example of mechanical digestion select all that apply
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Nursing Elites

ATI RN

ATI Nutrition Proctored Exam 2023

1. Which of the following are examples of mechanical digestion? Select all that apply.

Correct answer: C

Rationale: Mechanical digestion involves physical movements that break down food in the digestive tract. Segmentation (choice B) and peristalsis (choice D), which are both movements of the muscles in the digestive tract, are examples of this type of digestion. Heat (choice A), on the other hand, is related to chemical digestion, not mechanical digestion. Therefore, choice C (Option B and D) is the correct answer as it includes both examples of mechanical digestion provided in the choices. Choices A and D are incorrect because heat (choice A) is not a mechanical digestion process, and peristalsis (choice D) is a movement that helps propel food along the digestive tract but is not directly involved in breaking down food physically.

2. Which enzyme is most essential for the digestion of triglycerides found in butterfat?

Correct answer: A

Rationale: The correct answer is A: Gastric lipase. Gastric lipase is crucial for the digestion of short- and medium-chain triglycerides, such as those found in butterfat. Pepsin is involved in protein digestion, not lipid digestion. Mucus acts as a protective barrier in the stomach and does not play a direct role in lipid digestion. Intrinsic factor is involved in the absorption of vitamin B12 and is not related to the digestion of triglycerides.

3. A nurse is preparing a teaching plan for a client who has neutropenia as a result of radiation therapy for the treatment of lung cancer. Which of the following should the nurse plan to include in the teaching?

Correct answer: A

Rationale: In neutropenia, which is a low count of neutrophils, the client is at a high risk of infection. It is crucial to emphasize the importance of proper hydration to maintain overall health. Bottled water is a safe choice as it reduces the risk of exposure to contaminants that could further compromise the client's immune system. The other options, like the salad bar, soft-boiled eggs, and eating at a buffet, may not be suitable for a client with neutropenia due to the risk of bacterial contamination or exposure to pathogens that could lead to infections, which should be avoided.

4. A client who is postpartum and has been diagnosed with iron deficiency anemia should be taught to consume which of the following dietary recommendations?

Correct answer: C

Rationale: The correct answer is spinach and beef. Both spinach and beef are high in iron, making them excellent choices to help combat iron deficiency anemia. Yogurt, mozzarella, milk, turkey slices, fish, and cottage cheese are not as rich in iron compared to spinach and beef, so they are not the most suitable dietary recommendations for a client with iron deficiency anemia.

5. A client with diabetes is being taught by a nurse about the dietary source that should provide the greatest percentage of calories. Which of the following statements indicates the client understands the teaching?

Correct answer: B

Rationale: The correct answer is '"I should eat more calories from complex carbohydrates than anything else."?' Clients with diabetes should focus on complex carbohydrates as their primary calorie source because they have a lower impact on blood sugar levels compared to simple sugars or fats. Choice A is incorrect because a high intake of fats can lead to various health issues. Choice C is incorrect because simple sugars can cause rapid spikes in blood sugar levels. Choice D is incorrect as while protein is important, it should not be the main source of calories for someone with diabetes.

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