which physiologic role does vitamin c play in the body
Logo

Nursing Elites

ATI RN

ATI Nutrition Proctored Exam

1. Which physiologic role does vitamin C play in the body?

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. _____ neutralizes stomach acid in the small intestine:

Correct answer: C

Rationale: The correct answer is C: bicarbonate ions. Bicarbonate ions, secreted by the pancreas, neutralize the acidic chyme entering the small intestine from the stomach, creating a more suitable environment for digestive enzymes. Saliva (choice A) helps in the initial breakdown of food in the mouth, not in neutralizing stomach acid. Gastric mucus (choice B) protects the stomach lining from the acidic environment but does not neutralize the acid in the small intestine. Enzymes (choice D) facilitate chemical reactions in digestion but do not neutralize stomach acid.

3. Much of the research investigating probiotics and intestinal illness has focused on the prevention and treatment of _____.

Correct answer: D

Rationale: The correct answer is 'D: infectious diarrhea.' Research has extensively explored the use of probiotics in the prevention and treatment of infectious diarrhea. Probiotics can aid in restoring the balance of gut flora, thereby reducing symptoms. Choices A, B, and C are incorrect because while probiotics may have some benefits for these conditions, the primary focus of research in relation to probiotics and intestinal illness has been on infectious diarrhea.

4. A nurse is completing a nutritional assessment of an adult female client. Which of the following findings should indicate to the nurse that the client is at an increased risk of developing cancer?

Correct answer: C

Rationale: The correct answer is C because limiting alcohol consumption to 2 drinks per day is still above the recommended limit for reducing cancer risk. The recommended limit for women is 1 drink per day to lower the risk of developing cancer. Choices A, B, and D are not indicative of an increased risk of developing cancer as they all align with a healthy diet and lifestyle, which can actually help reduce the risk of cancer.

5. Which of the following nutrients provide energy?(Select ONE that does not apply.)

Correct answer: D

Rationale: Carbohydrates, fats, and proteins are the three macronutrients that provide energy (calories) to the body. Carbohydrates are the body's primary source of energy, fats act as a secondary source when carbohydrate energy is exhausted, and proteins are used for energy when carbohydrate and fat sources are low. Choice D, Water, is essential for the body's functions, but it does not provide energy.

Similar Questions

In one of your home visit to Mr. JUN, you found out that his son is sick with cholera. There is a great possibility that other member of the family will also get cholera. This possibility is a/an:
After surgery Leda develops peripheral numbness, tingling and muscle twitching and spasm. What would you anticipate to administer?
The most energy-rich nutrient is:
Which of the following nutrients deficiency may lead to a diabetes-like condition?
A client with iron deficiency anemia is being taught about dietary recommendations by a nurse. Which of the following dietary recommendations should the nurse include as a food that enhances iron absorption when consumed with nonheme iron?

Access More Features

ATI RN Basic
$69.99/ 30 days

  • 5,000 Questions with answers
  • All ATI courses Coverage
  • 30 days access

ATI RN Premium
$149.99/ 90 days

  • 5,000 Questions with answers
  • All ATI courses Coverage
  • 30 days access

Other Courses