which substance is most essential for hydrolyzing large protein molecules
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Nursing Elites

ATI RN

ATI Nutrition Proctored Exam 2023

1. Which enzyme is most essential for hydrolyzing large protein molecules?

Correct answer: B

Rationale: Pepsin, choice B, is the correct answer as it is a proteolytic enzyme that is essential for the breakdown of large protein molecules in the stomach. Gastric lipase, choice A, is incorrect because it primarily targets fats, not proteins, hence it is not involved in protein hydrolysis. Mucus, choice C, is incorrect as it serves to protect the stomach lining from acidic gastric juices and does not play a direct role in protein digestion. Intrinsic factor, choice D, is incorrect as it is vital for the absorption of Vitamin B12 in the small intestine and doesn't participate in the process of hydrolyzing proteins.

2. Which gluten-free food choice would be most appropriate for a patient with celiac disease?

Correct answer: C

Rationale: Eggs are a safe food choice for individuals with celiac disease as they are naturally gluten-free. Scalloped potatoes often contain flour in the sauce, which might contain gluten. Oatmeal can be a subject of debate due to possible cross-contamination during processing, so it might not be safe unless labeled gluten-free. Tortillas are typically made from wheat flour containing gluten, but gluten-free versions are available. However, eggs are universally gluten-free, making them the best choice for individuals with celiac disease.

3. Which factor contributes to the development of bone diseases in patients with Chronic Kidney Disease (CKD) due to retention?

Correct answer: D

Rationale: The correct answer is phosphorus. Retention of phosphorus in patients with Chronic Kidney Disease (CKD) contributes to the development of bone disorders, including osteodystrophy, because it disrupts the balance of calcium and phosphorus in the body. This imbalance leads to a variety of bone diseases. The other options - iron, sodium, and potassium - while important in the overall metabolic function, are not directly linked to the development of bone diseases in CKD patients due to retention.

4. A client who practices Islam and is currently observing dietary restrictions for the month of Ramadan. Which of the following interventions should the nurse include in the plan of care?

Correct answer: B

Rationale: During Ramadan, individuals fast from dawn to sunset. Facilitating fasting during daylight hours respects the dietary practices of clients observing Ramadan. Choice A is incorrect as the dietary restriction during Ramadan involves abstaining from all food and drink during daylight hours, not just beef products. Choice C is incorrect as Muslims generally do not consume meat and dairy together due to religious dietary laws. Choice D is incorrect as providing a low-carb diet on Fridays does not specifically align with the dietary restrictions observed during Ramadan.

5. An elderly man is hospitalized with a diagnosis of malnutrition three months following his wife's death. What risk factor for malnutrition does this scenario illustrate?

Correct answer: B

Rationale: This scenario illustrates depression or social isolation as a risk factor for malnutrition. After the death of his wife, the elderly man may have experienced depression or social isolation, which can lead to decreased food intake and poor nutritional status. Although age, chronic illness, and impaired mobility can also contribute to malnutrition, they are not the primary factors described in this scenario. The history of chronic illness (Choice A) and impaired mobility (Choice D) were not mentioned in the scenario, and while age (Choice C) is a factor, it's not the main factor depicted in this case.

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