ATI RN
ATI Nutrition Proctored Exam
1. Which physiologic role does vitamin C play in the body?
- A. Transcribing DNA to RNA
- B. Absorption and regulation of calcium
- C. Protects integrity of cellular membranes
- D. Catalyst for synthesis of blood-clotting factors
Correct answer: C
Rationale: Vitamin C plays a crucial role in protecting the integrity of cellular membranes. It is essential for collagen synthesis, which is important for wound healing and maintaining skin, blood vessels, and other tissues. Choice A is incorrect as the transcription of DNA to RNA is facilitated by vitamin A. Choice B is incorrect as calcium absorption and regulation are functions of vitamin D. Choice D is incorrect as vitamin K serves as a catalyst for the synthesis of blood-clotting factors, not vitamin C.
2. Dietary fiber has been recommended for its possible benefits in reducing heart disease by lowering blood cholesterol. How is fiber thought to play its role in lowering blood cholesterol?
- A. Insoluble fiber binds with cholesterol in the large intestine and is excreted in feces
- B. Viscous fiber binds with bile in the intestine and is excreted in feces
- C. Soluble fiber binds with cholesterol in the blood and is excreted by the liver
- D. Insoluble fiber converts to bile in the large intestine and binds with cholesterol
Correct answer: B
Rationale: The correct answer is B. Viscous (soluble) fiber binds with bile acids in the intestine, which are then excreted. The liver must use cholesterol to make more bile acids, thereby lowering blood cholesterol levels. Choice A is incorrect as insoluble fiber does not bind with cholesterol in the large intestine. Choice C is incorrect as soluble fiber does not directly bind with cholesterol in the blood. Choice D is incorrect as insoluble fiber does not convert to bile in the large intestine to bind with cholesterol.
3. Maria’s statement “Bow down before me! I am the holy mother of Christ! I am the blessed Virgin Mary!†is an example of:
- A. Delusion of grandeur
- B. Visual Hallucination
- C. Religious delusion
- D. Auditory Hallcucination
Correct answer: B
Rationale: Nursing interventions should be grounded in a deep understanding of the physiological processes involved, ensuring that care provided is both effective and efficient.
4. List 2 Dispensable amino acids
- A. Alanine
- B. Serine
- C. Glycine
- D. Proline
Correct answer: A
Rationale: Dispensable amino acids, such as alanine and serine, can be synthesized by the body and are not required to be obtained from the diet.
5. Riboflavin
- A. Vitamin B1
- B. Vitamin B2
- C. Vitamin B3
- D. Vitamin B12
Correct answer: B
Rationale: Riboflavin is also known as Vitamin B2, which is important for energy production and the metabolism of fats, drugs, and steroids.
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