Exam (elaborations)
NURS 3100 Exam 1 – Questions With Complete Solutions
NURS 3100 Exam 1 – Questions With Complete Solutions
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NURS 3100 Exam 1 – Questions With CompleteSolutions
What are the RDA's and how should they be used? What are the limitations of
the RDA's? ✔️Ans - - RDA stands for recommended dietary allowance.
- It is the average daily dietary intake level of a nutrient considered sufficient
to meet the requirements of nearly all (97-98%) healthy individuals in each
lifestage and gender group.
- Some problems with RDA's is that they are set by a committee, the
knowledge is limited for some populations, safety margins vary (do not cover
disease, Rx or illicit drugs, and alcohol), and they vary in different countries.
Explain why hair and nail samples are worthless measures of nutritional
status with respect to vitamins. ✔️Ans - - They don't store water soluble
vitamins and people who use cosmetics adds different chemicals to your hair
and nails.
What is the dietary reference value (DRV)? How is it used? ✔️Ans - - DRV
stands for daily reference values.
- The recommendations are outlined by age and gender. Within the DRVs ,
there are subcategories EAR (estimated average requirements), AI (adequate
intake), RDA (recommended dietary allowance), and UL (tolerable upper
intake levels).
- DRV's are on all food labels; used so that the consumer is aware of what
nutrients are in it.
Fraternal twins (a boy and a girl aged 17) are enrolled in a metabolic study.
Which twin do you expect to burn more Calories/minute on the elliptical
machine? Why? ✔️Ans - - I expect the boy to burn more calories/minute
on the elliptical machine because men have more muscle mass and females
have more body fat and the more muscle you have, the more calories you
burn.
Pages 582-3 in your nutrition textbook lists the Dietary Reference Intakes
(DRIs) for vitamins and minerals. Why are some values in a bold font and
some in ordinary type followed by an * ? (Um... and do not try to memorize
these values!!!) ✔️Ans - - Some values are in bold font because they are
the RDAs.
, - Some values are in ordinary font and followed by an * because they are the
AIs.
What are the "EAR," "AI," "UTL?" ✔️Ans - - EAR is the estimated average
requirements. It is the average daily intake expected to satisfy the needs of
50% of the people in that age group.
- AI is the adequate intake. It is the suggested daily intake of a nutrient when
there is insufficient research to establish an RDA, but the amount established
is believed to be adequate for most everyone in the demographic group.
- UTL is the tolerable upper intake levels. It is the highest amount of nutrient
that can be safely consumed with no risk of toxicity or adverse effects on
human health (ex. Vitamin D that can be harmful in large amounts).
7. What do the new USDA "plate" guidelines suggest? How many minutes of
activity are recommended by the guidelines? (These questions always appear
on nursing boards!) ✔️Ans - - The plate guidelines break up how much of
each food intake you need each day. Half an hour of strenuous activity and one
hour non strenuous
Define nutrient density. ✔️Ans - - Nutrient density is when there is a
higher proportion of nutrients compared to the number of calories (ex. candy
is not nutritionally dense, but milk is for calcium)
List 3 characteristics shared by all essential nutrients. ✔️Ans - - They
cannot be synthesized in the body, must be supplied in food, and they prevent
specific deficiency disease.
Which foods MUST provide nutrition labels? ✔️Ans - - Enriched, fortified,
and nutritional claim foods must provide nutrition labels (foods that do not
need nutrition labels include coffee, tea, and spices)
How many Calories (kcal) per gram are provided by carbohydrate? fat?
protein? alcohol? ✔️Ans - - carbohydrate: 4 kcal/gram
- fat: 9 kcal/gram
- protein: 4 kcal/gram
- alcohol: 7 kcal/gram
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