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. Proteolytic enzymes are most likely to break down which food type?

Correct answer: B

Rationale: Proteolytic enzymes target proteins for breakdown into amino acids. Carbohydrates are broken down by enzymes like amylase, while fats are broken down by lipase. Lipids, which include fats, are not specifically targeted by proteolytic enzymes.

3. Miss CEE is admitted for treatment of major depression. She appears withdrawn, disheveled, and states 'Nobody wants me'. What does the nurse most likely expect that Miss CEE is to be placed on?

Correct answer: C

Rationale: Given Miss CEE's state of major depression and her expressed feelings of worthlessness ('Nobody wants me'), the nurse would most likely expect her to be placed on suicide precaution. This means that measures would be taken to ensure her safety and to prevent her from harming herself. While medications like neuroleptics (Choice A) and anxiolytics (Choice D) might be employed as part of her overall treatment, these medicines are primarily used for conditions like psychosis and anxiety respectively, not specifically for depression or suicidal ideation. A special diet (Choice B) may be part of a comprehensive treatment plan, but it is not as immediate or as directly related to her current emotional and psychological state as suicide precaution is.

4. The goal of remotivation therapy is to facilitate:

Correct answer: A

Rationale: Patient safety and efficacy of care depend on actions rooted in established nursing protocols that consider both the immediate and long-term needs of the patient.

5. Churns chyme and has an environment of pH2; holds 4-6 cups of food:

Correct answer: A

Rationale: The stomach churns food into chyme and has a highly acidic environment (pH 2) to aid in the digestion of proteins and other nutrients.

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