ATI RN
ATI RN Nutrition Online Practice 2019
1. A factor contributing to the risk for dehydration in the older adult is that _____.
- A. drinking fluids causes loss of bladder control
- B. older adults do not seem to notice mouth dryness as readily as younger people
- C. increased fluid intake will decrease the intake of nutrient-dense foods
- D. changes in intestinal motility contribute to excess fluid loss
Correct answer: C
Rationale: Older adults may not notice mouth dryness as readily as younger individuals, increasing their risk for dehydration, especially if they do not consciously increase fluid intake.
2. Poor nutrition results in delayed eruption and exfoliation of deciduous teeth and increased dental caries. Increased caries susceptibility in at-risk children may be related to changes in salivary composition caused by malnutrition.
- 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 true. Poor nutrition can affect tooth development and increase the risk of dental caries in children.
3. Risk factors that have been shown to contribute to age-related macular degeneration include _____.
- A. oxidative stress from sunlight
- B. iron-deficiency anemia
- C. decreased intake of phytochemicals
- D. vitamin B6 malabsorption
Correct answer: A
Rationale: The correct answer is A: oxidative stress from sunlight. Oxidative stress caused by exposure to sunlight is a significant risk factor for age-related macular degeneration. This condition can result in vision loss among older individuals. Choices B, C, and D are incorrect. Iron-deficiency anemia, decreased intake of phytochemicals, and vitamin B6 malabsorption are not established risk factors for age-related macular degeneration.
4. Sugar alcohols have anticariogenic properties and can protect the teeth by decreasing demineralization, enhancing remineralization, or increasing salivary flow, even in the presence of a fermentable carbohydrate. Name 3 sugar alcohols.
- A. Sorbitol
- B. Mannitol
- C. Xylitol
- D. Erythritol
Correct answer: D
Rationale: Sugar alcohols such as sorbitol, mannitol, and xylitol are commonly used in sugar-free products and have properties that help protect teeth from caries by promoting remineralization and increasing salivary flow. Erythritol is another common sugar alcohol used as a sweetener in various products, but it was not listed in the question.
5. Men generally have a higher RDA than women, except during pregnancy and lactation when women’s nutritional needs increase significantly.
- A. TRUE
- B. FALSE
- C.
- D.
Correct answer: A
Rationale: The statement is TRUE. Men typically require a higher Recommended Dietary Allowance (RDA) than women due to physiological differences. However, during pregnancy and lactation, women's nutritional needs increase significantly to support the growth and development of the baby. Therefore, during these stages, women may require a higher RDA compared to men. This exception is crucial to consider when evaluating nutritional requirements based on gender.
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