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. What food assistance program provides a food debit card for older adults with low incomes?

Correct answer: C

Rationale: The correct answer is C: the Supplemental Nutrition Assistance Program (SNAP). SNAP provides a food debit card to assist low-income individuals, including older adults, in purchasing food. Choice A, the OAA Nutrition Program, is incorrect as it refers to a different program specifically focused on providing nutrition services to older adults. Choice B, Meals on Wheels, is incorrect as it is a meal delivery service for homebound individuals rather than a food debit card program. Choice D, the Emergency Food Assistance Program, is incorrect as it typically involves the distribution of emergency food supplies rather than providing a food debit card.

3. Which enzyme initiates protein digestion in the stomach?

Correct answer: A

Rationale: Pepsin is the enzyme that initiates protein digestion in the stomach. It breaks down proteins into smaller peptides, aiding in their further digestion and absorption in the intestines. Salivary Amylase (Choice B) functions in breaking down dietary carbohydrates in the mouth, not proteins. CCK (Choice C) and Secretin (Choice D) are hormones involved in the digestion of fats and carbohydrates, not proteins. Therefore, Choices B, C, and D are incorrect in the context of protein digestion in the stomach.

4. A client is planning eating strategies with a nurse who has nausea from equilibrium imbalance. Which of the following strategies should the nurse recommend?

Correct answer: B

Rationale: The correct answer is B: Provide low-fat carbohydrates with meals. Low-fat carbohydrates are easier to digest and can help manage nausea without overloading the digestive system. Encouraging the client to eat even if nauseated (Choice A) may worsen their symptoms. Limiting fluid intake between meals (Choice C) may lead to dehydration, which can exacerbate nausea. Serving hot foods at mealtime (Choice D) may not necessarily address the underlying issue of equilibrium imbalance causing nausea.

5. What special consideration should be taken into account when Mario prepares Richard for postural drainage and percussion?

Correct answer: A

Rationale: The correct answer is A, 'Monitoring a respiratory rate of 16 to 20 per minute'. When performing postural drainage and percussion, it is crucial to monitor the respiratory rate to ensure the safety and effectiveness of the procedure. Choice B, 'Assessing the client's ability to tolerate sitting and lying positions', while important, is not directly related to the specifics of postural drainage and percussion. Similarly, option C, 'Ensuring the client is free of signs of infection', although important, is not directly linked to the procedure. Option D, 'Knowing the time of the client's last food and fluid intake', might be relevant for other procedures, but it is not the primary consideration for postural drainage and percussion.

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