Ch. 45 Nutrition Flashcards
- A nurse is teaching about the energy needed at rest to maintain life-sustaining activities for a specific period of time. What is the nurse discussing?
a. Resting energy expenditure (REE)
b. Basal metabolic rate (BMR)
c. Nutrient density
d. Nutrients
ANS: B
The basal metabolic rate (BMR) is the energy needed at rest to maintain life-sustaining activities for a specific period of time. The resting energy expenditure (REE), or resting metabolic rate, is the amount of energy an individual needs to consume over a 24-hour period for the body to maintain all of its internal working activities while at rest. Nutrients are the elements necessary for body processes and function. Nutrient density is the proportion of essential nutrients to the number of kilocalories. High–nutrient density foods provide a large number of nutrients in relation to kilocalories.
- In general, when a patient’s energy requirements are completely met by kilocalorie (kcal) intake in food, which assessment finding will the nurse observe?
a. Weight increases.
b. Weight decreases.
c. Weight does not change.
d. Weight fluctuates daily.
ANS: C
In general, when energy requirements are completely met by kilocalorie (kcal) intake in food, weight does not change. When kilocalories ingested exceed a person’s energy demands, the individual gains weight. If kilocalories ingested fail to meet a person’s energy requirement, the individual loses weight. Fluid, not kilocalories, causes daily weight fluctuations.
A nurse is asked how many kcal per gram fats provided. How should the nurse answer?
a. 3
b. 4
c. 6
d. 9
ANS: D
Fats (lipids) are the most calorie-dense nutrient, providing 9 kcal/g. Carbohydrates and protein provide 4 kcal/g.
A nurse is teaching a patient about proteins that must be obtained through the diet and cannot be synthesized in the body. Which term used by the patient indicates teaching is successful?
a. Amino acids
b. Triglycerides
c. Dispensable amino acids
d. Indispensable amino acids
ANS: D
The body does not synthesize indispensable amino acids, so these need to be provided in the diet. The simplest form of protein is the amino acid. The body synthesizes dispensable amino acids. Triglycerides are made up of three fatty acids attached to a glycerol.
A nurse is caring for a patient with a postsurgical wound. When planning care, which goal will be the priority?
a. Reduce dependent nitrogen balance.
b. Maintain negative nitrogen balance.
c. Promote positive nitrogen balance.
d. Facilitate neutral nitrogen balance.
ANS: C
When intake of nitrogen is greater than output, the body is in positive nitrogen balance. Positive nitrogen balance is required for growth, normal pregnancy, maintenance of lean muscle mass and vital organs, and wound healing. Negative nitrogen balance occurs when the body loses more nitrogen than the body gains. Neutral nitrogen balance occurs when gain equals loss and is not optimal for tissue healing. There is no such term as dependent nitrogen balance.
.In providing diet education for a patient on a low-fat diet, which information is important for the nurse to share?
a. Polyunsaturated fats should be less than 7% of the total calories.
b. Trans fat should be less than 7% of the total calories.
c. Unsaturated fats are found mostly in animal sources.
d. Saturated fats are found mostly in animal sources.
ANS: D
Most animal fats have high proportions of saturated fatty acids, whereas vegetable fats have higher amounts of unsaturated and polyunsaturated fatty acids. Linoleic acid, an unsaturated fatty acid, is the only essential fatty acid in humans. Diet recommendations include limiting saturated fat to less than 7% and trans fat to less than 1%.
A patient has a decreased gag reflex, left-sided weakness, and drooling. Which action will the nurse take when feeding this patient?
a. Position in semi-Fowler’s.
b. Flex head with chin tuck.
c. Place food on left side.
d. Offer fruit juice.
ANS: B
Have the patient flex the head slightly to a chin-down position to help prevent aspiration. If the patient has unilateral weakness, teach him or her and the caregiver to place food in the stronger side of the mouth. Provide a 30-minute rest period before eating and position the patient in an upright, seated position in a chair or raise the head of the bed to 90 degrees. Thin liquids such as water and fruit juice are difficult to control in the mouth and are more easily aspirated.
.The patient has been diagnosed with cardiovascular disease and placed on a low-fat diet. The patient asks the nurse, “How much fat should I have? I guess the less fat, the better.” Which information will the nurse include in the teaching session?
a. Cholesterol intake needs to be less than 300 mg/day.
b. Fats have no significance in health and the incidence of disease.
c. All fats come from external sources so this can be easily controlled.
d. Deficiencies occur when fat intake falls below 10% of daily nutrition.
ANS: D
Deficiency occurs when fat intake falls below 10% of daily nutrition. While keeping cholesterol below 300 mg is correct according to the American Heart Association, it does not answer the patient’s question about fat. Various types of fatty acids have significance for health and for the incidence of disease and are referred to in dietary guidelines. Linoleic acid and arachidonic acid are important for metabolic processes but are manufactured by the body when linoleic acid is available from the diet.
The nurse is describing the ChooseMyPlate program to a patient. Which statement from the patient indicates successful learning?
a. “I can use this to make healthy lifestyle food choices.”
b. “I can use this to count specific calories of food.”
c. “I can use this for my baby girl.”
d. “I can use this when I am sick.”
ANS: A
ChooseMyPlate serves as a basic guide for making food choices for a healthy lifestyle. The ChooseMyPlate program was developed by the U.S. Department of Agriculture to replace the MyFoodPyramid program. It helps balance calories but does not provide specific calories of food. These guidelines are for Americans over the age of 2 years. These guidelines are provided for health, not sickness.
The nurse is teaching a health class about the ChooseMyPlate program. Which guidelines will the nurse include in the teaching session?
a. Balancing sodium and potassium
b. Decreasing water consumption
c. Increasing portion size
d. Balancing calories
ANS: D
The ChooseMyPlate program includes guidelines for balancing calories; decreasing portion size; increasing healthy foods; increasing water consumption; and decreasing fats, sodium, and sugars. It does not balance sodium and potassium.
The nurse is providing nutrition education to a Korean patient using the five food groups. In doing so, what should be the focus of the teaching?
a. Discouraging the patient’s ethnic food choices
b. Changing the patient’s diet to a more conventional American diet
c. Including racial and ethnic practices with food preferences of the patient
d. Comparing the patient’s ethnic preferences with American dietary choices
ANS: C
As a nurse, consider the food preferences of patients from different racial and ethnic groups, vegetarians, and others when planning diets. Initiation of a balanced diet is more important than conversion to what may be considered an American diet. Ethnic food choices may be just as nutritious as American choices. Foods should be chosen for their nutritive value and should not be compared with the American diet.
A nurse is teaching a nutrition class about the different daily values. When teaching about the referenced daily intakes (RDIs), which information should the nurse include?
a. Have values for protein, vitamins, and minerals
b. Are based on percentages of fat, cholesterol, and fiber
c. Have replaced recommended daily allowances (RDAs)
d. Are used to develop diets for chronic illnesses requiring 1800 cal/day
ANS: A
The RDIs are the first set, comprising protein, vitamins, and minerals based on the RDA. The daily reference values (DRVs) make up the second set and consist of nutrients such as total fat, saturated fat, cholesterol, carbohydrates, fiber, sodium, and potassium. Combined, both sets make up the daily values used on food labels. Daily values did not replace RDAs but provided a separate, more understandable format for the public. Daily values are based on percentages of a diet consisting of 2000 kcal/day for adults and children 4 years or older.
The nurse is planning care for a group of patients. Which task will the nurse assign to the nursing assistive personnel?
a. Measuring capillary blood glucose level
b. Measuring nasoenteric tube for insertion
c. Measuring pH in gastrointestinal aspirate
d. Measuring the patient’s risk for aspiration
ANS: A
The skill of measuring blood glucose level after skin puncture (capillary puncture) can be delegated to nursing assistive personnel. The other skills cannot be delegated. A nurse must measure a nasoenteric tube for insertion, pH in gastrointestinal aspirate, and patient’s risk for aspiration.
In teaching mothers-to-be about infant nutrition, which instruction should the nurse provide?
a. Supplement breast milk with corn syrup.
b. Give cow’s milk during the first year of life.
c. Add honey to infant formulas for increased energy.
d. Provide breast milk or formula for the first 4 to 6 months.
ANS: D
Breast milk or formula provides sufficient nutrition for the first 4 to 6 months of life. Infants should not have regular cow’s milk during the first year of life. It is too concentrated for an infant’s kidneys to manage, increases the risk of milk product allergies, and is a poor source of iron and vitamins C and E. Furthermore, children under 1 year of age should never ingest honey and corn syrup products because they are potential sources of the botulism toxin, which increases the risk of infant death.
When planning care for an adolescent who plays sports, which modification should the nurse include in the care plan?
a. Increasing carbohydrates to 55% to 60% of total intake
b. Providing vitamin and mineral supplements
c. Decreasing protein intake to 0.75 g/kg/day
d. Limiting water before and after exercise
ANS: A
Sports and regular moderate to intense exercise necessitate dietary modification to meet increased energy needs for adolescents. Carbohydrates, both simple and complex, are the main source of energy, providing 55% to 60% of total daily kilocalories. Protein needs increase to 1 to 1.5 g/kg/day. Fat needs do not increase. Adequate hydration is very important. Adolescents need to ingest water before and after exercise to prevent dehydration, especially in hot, humid environments. Vitamin and mineral supplements are not required, but intake of iron-rich foods is required to prevent anemia.
ANS: A
Sports and regular moderate to intense exercise necessitate dietary modification to meet increased energy needs for adolescents. Carbohydrates, both simple and complex, are the main source of energy, providing 55% to 60% of total daily kilocalories. Protein needs increase to 1 to 1.5 g/kg/day. Fat needs do not increase. Adequate hydration is very important. Adolescents need to ingest water before and after exercise to prevent dehydration, especially in hot, humid environments. Vitamin and mineral supplements are not required, but intake of iron-rich foods is required to prevent anemia.
ANS: C
Folic acid intake is particularly important for DNA synthesis and growth of red blood cells. Inadequate intake may lead to fetal neural tube defects, anencephaly, or maternal megaloblastic anemia. Protein intake throughout pregnancy needs to increase to 60 grams daily. Calcium intake is especially critical in the third trimester, when fetal bones mineralize. Prenatal care usually includes vitamin and mineral supplementation to ensure daily intakes; however, pregnant women should not take additional supplements beyond prescribed amounts.
ANS: C
Folic acid intake is particularly important for DNA synthesis and growth of red blood cells. Inadequate intake may lead to fetal neural tube defects, anencephaly, or maternal megaloblastic anemia. Protein intake throughout pregnancy needs to increase to 60 grams daily. Calcium intake is especially critical in the third trimester, when fetal bones mineralize. Prenatal care usually includes vitamin and mineral supplementation to ensure daily intakes; however, pregnant women should not take additional supplements beyond prescribed amounts.
The patient is an 80-year-old male who is visiting the clinic today for a routine physical examination. The patient’s skin turgor is fair, but the patient reports fatigue and weakness. The skin is warm and dry, pulse rate is 116 beats/min, and urinary sodium level is slightly elevated. Which instruction should the nurse provide?
a. Drink more water to prevent further dehydration.
b. Drink more calorie-dense fluids to increase caloric intake.
c. Drink more milk and dairy products to decrease the risk of osteoporosis.
d. Drink more grapefruit juice to enhance vitamin C intake and medication absorption.
ANS: A
Thirst sensation diminishes, leading to inadequate fluid intake or dehydration; the patient should be encouraged to drink more water/fluids. Symptoms of dehydration in older adults include confusion, weakness, hot dry skin, furrowed tongue, and high urinary sodium. Milk continues to be an important food for older woman and men, who need adequate calcium to protect against osteoporosis; the patient’s problem is dehydration, not osteoporosis. Caution older adults to avoid grapefruit and grapefruit juice because these will decrease absorption of many drugs. The patient needs fluids not calories; drinking calorie-dense fluids is unnecessary.
The nurse is assessing a patient for nutritional status. Which action will the nurse take?
a. Forego the assessment in the presence of chronic disease.
b. Use the Mini Nutritional Assessment for pediatric patients.
c. Choose a single objective tool that fits the patient’s condition.
d. Combine multiple objective measures with subjective measures.
ANS: D
Combine multiple objective measures with subjective measures related to nutrition to adequately screen for nutritional problems. Using a single objective measure is ineffective in predicting risk of nutritional problems. Chronic disease and increased metabolic requirements are risk factors for the development of nutritional problems; these patients may be in critical need of this assessment. The Mini Nutritional Assessment is used for screening older adults in home care programs, nursing homes, and hospitals.