ATI RN
Nutrition ATI Proctored Exam
1. Which cells in the islet of the pancreas are responsible for synthesizing insulin?
- A. Alpha cells
- B. Beta cells
- C. Gamma cells
- D. Delta cells
Correct answer: B
Rationale: Beta cells in the islets of Langerhans in the pancreas are responsible for the production and secretion of insulin, which is crucial for regulating blood glucose levels. Alpha cells, on the other hand, produce glucagon, a hormone that raises blood glucose levels. Gamma cells and Delta cells do not exist in the islets of Langerhans; therefore, they are incorrect choices.
2. Given that orthodontic patients are frequently adolescents, their nutrition and oral self-care are often subpar. A dental hygienist may successfully motivate these noncompliant patients by emphasizing that optimal nutrition and oral self-care can enhance their appearance. Is this true or false?
- A. Both statements are true
- B. Both statements are false
- C. The first statement is true; the second is false
- D. The first statement is false; the second is true
Correct answer: A
Rationale: Both statements are indeed true. Many adolescents undergoing orthodontic treatment often neglect proper nutrition and oral hygiene, leading to subpar practices in these areas. It's common for them to be less attentive to these aspects due to various factors. A dental hygienist's role includes motivating these patients towards better self-care practices. One effective approach is by emphasizing that good nutrition and oral hygiene can significantly enhance their appearance. This approach is particularly effective for adolescents as they are often highly conscious about their looks. The other choices are incorrect because they suggest that one or both of the statements are false, which is not the case.
3. Which change during pregnancy is related to the slowing of the gastrointestinal tract?
- A. Diarrhea
- B. Constipation
- C. Decreased absorption of iron
- D. Decreased absorption of calcium
Correct answer: B
Rationale: During pregnancy, the gastrointestinal tract tends to slow down, leading to constipation. This is due to hormonal changes that relax the intestinal muscles, allowing more time for nutrient absorption and ultimately leading to constipation. Diarrhea is not typically associated with the slowing of the gastrointestinal tract during pregnancy. Decreased absorption of iron and calcium may occur during pregnancy due to increased demands, but they are not directly related to the slowing of the gastrointestinal tract.
4. Which monosaccharide is the most sweet?
- A. Glucose
- B. Dextrose
- C. Fructose
- D. Sucrose
Correct answer: C
Rationale: Fructose is the sweetest of the monosaccharides. Note that glucose and dextrose are the same, and sucrose is a disaccharide, not a monosaccharide.
5. When should a newborn transition to whole milk according to dietary teaching for breastfeeding parents?
- A. 6 months
- B. 8 months
- C. 10 months
- D. 12 months
Correct answer: D
Rationale: Breast milk or formula should be the primary source of nutrition for infants up to around 1 year of age. The transition to whole cow's milk is recommended at 12 months of age, not earlier. Introducing whole milk before 12 months can lead to digestive issues and nutrient deficiencies. Therefore, choices A, B, and C are incorrect as they suggest transitioning to whole milk before the recommended age of 12 months.
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