ATI RN
ATI Nutrition Proctored Exam 2023 Test Bank
1. Where does most nutrient digestion and absorption occur?
- A. Large intestine
- B. Small intestine
- C. Stomach
- D. Mouth
Correct answer: B
Rationale: The small intestine is the correct answer. It is the primary site for nutrient digestion and absorption in the digestive system. The small intestine plays a crucial role in breaking down carbohydrates, proteins, and fats into forms that can be absorbed by the body. While the large intestine absorbs water and electrolytes, the majority of nutrient absorption occurs in the small intestine. The stomach primarily functions in the initial digestion of proteins, and the mouth begins the mechanical breakdown of food through chewing.
2. Which of the following is not a desirable blood lipid value?
- A. low total cholesterol
- B. high LDL
- C. high HDL
- D. low blood triglycerides
Correct answer: B
Rationale: The correct answer is B. High levels of LDL (low-density lipoprotein) cholesterol are undesirable as they are associated with an increased risk of cardiovascular disease. Therefore, low total cholesterol (choice A), high HDL (choice C), and low blood triglycerides (choice D) are considered desirable blood lipid values. Low total cholesterol is beneficial as high levels can increase the risk of heart disease. High HDL cholesterol is considered good as it helps remove LDL cholesterol from the arteries. Low blood triglycerides are also preferred as high levels are associated with an increased risk of heart disease.
3. What is the primary function of antioxidants in the diet?
- A. Provide energy
- B. Support muscle growth
- C. Neutralize free radicals
- D. Increase blood sugar
Correct answer: C
Rationale: The primary function of antioxidants in the diet is to neutralize free radicals. Free radicals can cause cellular damage, leading to various chronic diseases. Antioxidants help combat this oxidative stress by neutralizing free radicals. Choices A, B, and D are incorrect because antioxidants do not provide energy, support muscle growth, or increase blood sugar; their main role is in combating oxidative stress.
4. Which type of diabetes is often associated with a BMI greater than 25 and an increased percentage of body fat, particularly in the abdominal region, contributing to insulin resistance?
- A. Type 1 Diabetes
- B. Type 2 Diabetes
- C. Gestational Diabetes
- D. Prediabetes
Correct answer: B
Rationale: The correct answer is B. Type 2 Diabetes is often associated with a BMI greater than 25 and an increased percentage of body fat, particularly in the abdominal region, contributing to insulin resistance. Type 1 Diabetes is an autoimmune condition not primarily linked to BMI or body fat percentage. Gestational Diabetes occurs during pregnancy and is not directly related to BMI. Prediabetes is a condition where blood sugar levels are higher than normal but not high enough to be diagnosed as Type 2 Diabetes; although it can be associated with higher BMI, it is not as definitive as in Type 2 Diabetes.
5. A woman who has been following a vegan diet may need ____ supplements.
- A. vitamin C and vitamin A
- B. vitamin D and vitamin B12
- C. vitamin E and K
- D. vitamin D and niacin
Correct answer: B
Rationale: The correct answer is B: vitamin D and vitamin B12. Vegans may need to supplement vitamin D and B12 as these nutrients are mainly found in animal products. While choices A, C, and D are essential vitamins, they are not typically lacking in a vegan diet. Vitamin C can be obtained from various plant sources, vitamin A can be derived from beta-carotene in plants, and vitamin E and K are also found in plant-based foods. Niacin, although important, can be sourced from plant-based sources and is not a common deficiency in vegan diets.
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