ATI RN
ATI Nutrition Proctored Exam 2023 Test Bank
1. Which test is used to monitor the degree of blood glucose control over a long period?
- A. Glucose tolerance test
- B. Glycated hemoglobin level
- C. Self-monitoring of blood glucose
- D. 24-hour urinary glucose excretion
Correct answer: B
Rationale: The correct answer is B, glycated hemoglobin level. The glycated hemoglobin (HbA1c) test measures the average blood glucose levels over the past 2-3 months, providing a long-term picture of glucose control. Choice A, the glucose tolerance test, measures how well your body processes glucose but is not specifically for long-term monitoring. Choice C, self-monitoring of blood glucose, involves daily testing by individuals, providing immediate rather than long-term information. Choice D, 24-hour urinary glucose excretion, measures the amount of glucose excreted in the urine over 24 hours and is not typically used for long-term monitoring of blood glucose control.
2. Each statement accurately describes the physical effects of food on periodontal health, except one. Which is the exception?
- A. Supragingival plaque biofilm adhesion is influenced by frequent consumption of monosaccharides
- B. Supragingival plaque biofilm adhesion is influenced by frequent consumption of disaccharides
- C. Poor nutrition has an adverse effect on the periodontium
- D. Chewing soft, spongy foods stimulates salivary flow
Correct answer: D
Rationale: The correct answer is D. Chewing soft, spongy foods does not stimulate salivary flow; rather, firm, fibrous foods like fruits and vegetables do. Soft foods can stick to teeth, promoting plaque buildup. Choices A, B, and C are accurate: Supragingival plaque biofilm adhesion is influenced by both monosaccharides and disaccharides, while poor nutrition can indeed have adverse effects on the periodontium.
3. Which bond is formed by a positively charged metal ion and negatively charged nonmetal ion?
- A. Ionic bond
- B. Covalent bond
- C. Functional group
- D. Metallic bond
Correct answer: A
Rationale: The correct answer is an ionic bond. An ionic bond is formed when a positively charged metal ion joins with a negatively charged nonmetal ion, resulting in a transfer of electrons. In contrast, a covalent bond involves sharing electrons between atoms rather than complete transfer. Functional groups are specific groups of atoms within molecules that determine the molecule's chemical properties. Metallic bonds occur between metal atoms where electrons are shared across a delocalized electron cloud.
4. Which of the following converts starch to disaccharides, and this reaction occurs in the _____?
- A. pancreatic amylases, small intestine
- B. brush border enzymes, small intestine
- C. luminal enzymes, large intestine
- D. pancreatic amylases, pancreas
Correct answer: A
Rationale: The correct answer is A. Pancreatic amylases break down starch into disaccharides in the small intestine. This process occurs in the small intestine, not the large intestine or pancreas. Brush border enzymes act on disaccharides to break them down into monosaccharides, while luminal enzymes are not specifically involved in the conversion of starch to disaccharides.
5. For a patient on a ketogenic diet, which macronutrient is primarily increased?
- A. Carbohydrates
- B. Protein
- C. Fats
- D. Fiber
Correct answer: C
Rationale: The correct answer is C: Fats. A ketogenic diet is characterized by high fat intake, moderate protein intake, and very low carbohydrate intake. This diet aims to shift the body's metabolism to use fat as the primary source of energy instead of carbohydrates. Increasing fat intake while reducing carbohydrates is essential for achieving and maintaining a state of ketosis. Therefore, choices A, B, and D are incorrect as they do not align with the macronutrient adjustments required for a ketogenic diet.
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