Final Flashcards
Define: Infancy
First year of life (birth-12 months)
Infancy is sometimes broken down into:
- Early infancy (0-6 months)
- Later infancy (6-12 months)
T or F: Newborns hear and move in response to familiar sounds.
True
T or F: Newborns CNS is immature; subtle cues for hunger and satiety vs. stronger cues
True
Define: Reflex
automatic response triggered by specific stimulus
Define: Rooting Reflec
infant turns head toward the cheek that is touched
Define: Suckle
reflex causing tongue to move forward and backward
What are the domains of development (infants):
- Motor: voluntary muscle movement : gross and fine influenced by sensory system
- Sensory: information from the environment
- Cognitive / mental
- Language and Communication
- Social, adaptive, emotional
Define: Intrinsic influence
child’s health (nutrition), brain function, temperament
Define: extrinsic influence
family, environment, cultural norms
Define: Motor development
the ability to control voluntary muscles
T or F: Motor development is top down
True: the child first controls the head, and lastly controls the lower legs.
- central to extremities: shoulders are controlled before fingers
In infancy: cognitive skills
- thumb sucking becomes intentional
- sensitivity to food texture helps develop speech skills
- feeding tubes in early infancy can interrupt development and have long-term negative consequences
Infancy: Digestive System Development
- Gut is functional at birth (can digest fat, protein, simple sugars)
- ~ six months required for GI tract maturation
Digestive system development: what happens as an infant ages?
- levels of digestive enzymes expand
- speed of stomach emptying increases
- Peristalsis becomes more consistent
Feeding skills Development: What is happening at 4-6 weeks?
- reflexes fade
- infant begins to purposely signal wants and needs
Feeding skills Development: What is happening at 4-6 months?
- tongue moves side to side
- teeth arrive
- can swallow pureed foods and hold a bottle
Feeding skills Development: What is happening at 9-12 months?
- self-feeding with hands or spoon
- munching and biting skills
- lumpy and chopped foods
- drinking from an open cup
T or F: Infants do not have an inherent preference for sweet taste.
False: Infants DO have an inherent preference for sweet taste.
What are the energy needs of an infant?
108 kcal/kg/day from birth to 6 months
98 kcal/kg/day from 6-12 months
120 kcal/kg/day for babies born prematurely
How much is that?
Newborn weighing 4 kg (8.8 lbs) needs 108 x 4 = 432 kcal
6 month old weighing 8kg (17.6 lbs) needs 98 x 8 = 784 kcal
Absolute calorie needs are more from 6-12 months, but relative amounts are less
What factors influence caloric needs of infants?
- Weight
- Growth rate
- Sleep/wake cycle
- temperature and climate
- metabolic response to food
- health status
When do growth spurts typically occur for infants?
- 3 weeks
- 3 months
What are the protein needs of an infant?
- 2 g/kg/day from birth to 6 months
- 6 g/kg/day from 6-12 months
Preemie Protein Needs
1.52 g/kg adequate if growth or digestion are not affected
3.0-3.5 g/kg required for preterm or recovery from illness
4.0 g/kg may be needed for extremely low birth weight (< 1000g)
Hydrolyzed protein or single amino acid formulas may be used for preemies or sick infants
What are the fat needs for infants?
AI about 30 g/day; no change from birth- 6 mo and 6-12mo; restriction not recommended
Infants need cholesterol for brain development
Breast milk contains about 55% calories from fat
Breast milk contains short-chain and medium-chain fatty acids (in addition to the long-chain)
Short and medium-chain fatty acids are easier to digest and utilize
Preemies lack the bile required to digest long-chain fatty acids- can add MCT (medium-chain triglyceride) oil to boost energy
What are the carbohydrate needs for infants?
- 60 g/day from birth to 6 months
- 95 g/day from 6-12 months
What is the metabolic rate of infants?
- Metabolic rate of infants is highest of any time after birth
- The higher rate is related to rapid growth and high proportion of muscle
- Low carbohydrate and/or energy intake results in protein catabolism which impact growth
- 6 weeks → 6 months
True or false: Infants need to be supplemented with fluoride at 6 months
True; unless they are provided with fluorinated water daily
What is fluoride important for? (infants)
- incorporated into enamel of forming teeth
T or F: Breastfed babies need Vitamin D supplement of 400 IU from birth until 1 year of age
True
T or F: Anemia is common in infants
False: anemia is uncommon in infants because of prenatal iron stores of the mother and high bioavailability in breastmilk
T or F: it is recommended that Iron-fortified cereals and other iron-rich foods are given to the infant starting at 6 months
True
T or F: Premature or sick infants may need additional vitamins and minerals to support “catch-up” growth or while recovering from illness
True
T or F: Human fortifiers provide additional calories and nutrients to infants (calcium, vitamin B12)
True
T or F: Formula composition is strictly regulated in Canada to match breast milk as closely as possible
true
What is the hierarchy of recommendations for milk for infants?
- Breast milk
- cow’s milk formula
- soy based formula
T or F: Soy formula is recommended for managing colic
False; soy formula is NOT recommended for managing colic, not even recommended with milk-based allergies or intolerances
What do some of the specialized formulas include?
- higher energy
- hydrolyzed proteins
- lactose replaces with other sugars
- MCT added
- DHA added
- prebiotics
- decreased minerals
- fibre
How long does Health Canada support breast feeding for?
- Up to two years or beyond, as long as mother and child want to continue
Why should whole, reduced-fat or skim cow’s milk not be used before 9 months of age?
- Iron-deficiency anemia linked to early introduction of cow’s milk
- gastro-intestinal (GI) blood loss
- Displacement of iron-rich foods
When should complementary feeding start (infants)?
- Start at six months
What foods should be first presented to infants?
- Iron-rich foods (cereals and meats) then slowly progress (1 new food every 2-3 days) to a variety of foods that the family eats)
- Serve foods prepared without sugar
By 12 months, what is the recommended frequency of complementary feedings?
- 3 ‘meals’ and 3’snacks’ per day
Should honey be consumed before the age of 1?
No
What is the transition of textured foods for infants?
- pureed
- lumpy
- mashed
- diced
T or F: Lumpy foods should be offered no later than 9 months
True
T or F: After 6 months, there is no evidence that introducing any allergen has an increase risk of developing an allergy
True
How many allergens should you offer to an infant at once?
- Offer no more than 1 potential allergen at a time and wait at least two days before introducing another
What types of foods should be avoided when thinking about food safety for infants?
- hard, small, round , smooth, and sticky foods
What are some foods that could choke infants?
- popcorn
- peanuts
- raisins
- stringy meat
- gum and gummy textured candy, hard candy, or jelly beans
- hot dogs
- hard fruits or vegetables
What are the food recommendations for infants aged 6-9 months:
- texture: pureed, lumpy, mashed
- slowly increase amount based on infant’s appetite
- by end of 9 months, eating 3 ‘meals’ with breast/formula feeds
What are the food recommendations for infants aged 9-12 months:
- Texture: move towards diced soft foods
- foods need to increase in texture to encourage chewing
- encourage self-feeding and eating ‘family foods’
What are the food expectations for infants aged 12 months?
- general pattern of 3 meals and 3 snacks
- slow self-weaning as increase solid food intake at nine months is 3-4 milk/feedings/day, 12 months is about 2 milk feedings/day
- texture: solids increase in amount progressing towards ‘table’ foods with some modification
What are some cues to tell if an infant is hungry?
- watches food being prepared
- reaches for food, spoon
- tight fists
- irritation is pace is too slow or stops
What are some cues to tell if an infant is full?
- Plays with food, utensils
- slows pace of eating
- turns away from spoon
- tries to get out of high chair
- stops eating
- spits out food
What does the physical growth assessment reflect for infants?
- nutritional adequacy
- health status
- economic and environmental adequacy
What is being measured in the physical growth assessment of infants?
- weight
- height / length
- head circumference
T or F: Infant / child height and weight must be interpreted in the context of age and gender
true
Who is the reference population for the WHO recommendations for infants?
- children from 6 countries worldwide (Brazil, Ghana, India, Norway, Oman, USA)
- based on standard measurements of babies
- Based on exclusively breastfed population that are 4 months old
T or F: Charts developed by WHO describe how children should grow
True
What is the difference between the CDC and the WHO in regards to infant growth?
CDC –> how children have grown, past patterns
WHO –> how children should grow, looking into the future
What are warning signs of a need for intervention for growth of infants?
- loss of weight or length gain
- plateau in weight or length for > 1
- Drop in weight without regain in a few weeks
- fast gain in weight
What is the process of correcting for gestational age?
- Subtract gestational age at birth from 40 weeks
- Divide by 4 to get months
- subtract that amount from current age
Example: infant born at 30 weeks; assessing growth at 3 months
40-30 = 10 weeks
10/4 = 2.5 months
Current age = 3 months
3 months - 2.5 months = 0.5 months or two weeks
Therefore you will chart baby’s growth at two weeks to chart more accurately
T or F: Low birth weight infants are at a greater risk of dying during the first year of life, and of developing chronic health problems
true
Describe ‘failure to thrive’ in infants:
- Defined as when the infant is growing more slowly than other infants his/her own age; there is inadequate gain in weight or length
- Organic → diagnosed condition
Examples: chronic ear infections, developmental disability - Non-organic → not based on medical diagnosis
Examples: maternal mental health, dilution of formula, general neglect
What are the nutrition interventions related to failure to thrive infants?
- May be complex and involve a team approach including the registered dietitian
- Nutrition interventions to establish energy and protein intake goals and feeding schedule
T or F: about 6-8% of children < 4 years old have allergies
true
What are the ‘problems’ with allergies for infants?
- diagnosis is challenging
- Families seeking testing is increasing → increased number of false positives (ie. incorrect diagnoses are common)
- Families determining ‘allergic’ without testing
- Self-diagnosis may lead to removal of foods/group that may decrease nutritional adequacy
What are some new thoughts on allergies for infants?
- Food avoidance /postponement may lead to decreased nutritional adequacy and limit variety
- Breast milk for infants at risk of allergies
- Oral Tolerance Induction:
Idea of slow sensitization especially for milk, soy, egg, wheat
Overcome risk of allergy by consuming tiny by increasing portions of the food
Train immature immune system
Discuss lactose intolerance in infants:
- Inability to digest the disaccharide lactose
- Characterized by cramps, nausea and pain and alternating diarrhea and constipation
- Treated with lactose-free cow’s milk or soybean-based formulas
- Many infants “outgrow” lactose intolerance
GI tract matures and produces the necessary enzymes
The development of motor control starts with:
a. Lower leg control, then arm control, and then head control
b. head and trunk control, then lower legs
c. trunk and arm control, then lower legs, then head
d. head and leg control that occur simultaneously, then neck control
e. finger and hand control, then lower legs, then head and neck control
b. Head and trunk control, then lower legs
Which of the following would NOT be a cue an infant might have given when signalling that s/he is hungry and ready to eat?
a. watching the food be opened
b. reaching for the spoon
c. showing irritation if the feeding pace is too slow
d. spitting out food on the floor
e. c and d
d. spitting out food on the floor
What is the gestational-adjusted age for a 9-month old infant born at 32 weeks of age?
a. 6.5 months
b. 7 months
c. 8 months
d. 8.5 months
b. 7 months
What percentage of children less than four years of age have a food allergy?
a. less than 10%
b. 10-30%
c. 30-40 %
d. over 50%
a. less than 10%
What is one of the signs associated with inadequate growth in infants?
a. weight loss within the first week after birth
b. weight remaining stable over 3 months
c. weight gain over 3 months
d. missing weights in the medical record
b. weight remaining stable over 3 months
On average, toddlers gain:
a. 4 oz per month
b. 8 oz per month
c. 1 lb per month
d. 2-3 lbs per month
b. 8 oz per month
On average, preschoolers gain:
a. 4lbs per year
b. 6 lbs per year
c. 8 lbs per year
d. 10 lbs per year
a. 4 lbs per year
What percentage of children aged 2-5 are overweight / obese?
a. 5%
b. 13%
c. 17%
d. 22%
b. 13%
Targeting behaviours in the prevention of overweight or obesity from birth would include all of the following except:
a. limiting sugary beverages
b. encouraging consumption of fruits and vegetables
c. skipping breakfast every day
d. limiting portion sizes
e. eating a fibre-rich diet
c. skipping breakfast every day
What is the recommended intake of total fibre for children aged 4-8 years?
a. 25 g/day
b. 29 g/day
c. 31 g/day
d. 35 g/day
a. 25 g/day
A child with a body mass index (BMI) equal or greater than the 85th percentile, but less than the 95th percentile, is:
a. at a normal weight
b. at risk of becoming overweight
c. overweight
d. obese
c. overweight
It is recommended that children engage in at least ____ minutes of physical activity every day.
a. 30
b. 45
c. 60
d. 90
e. > 90
c. 60
Females experience a ___ % increase in body fat during puberty.
a. 40%
b. 50%
c. 100%
d. 120%
d. 120%
During peak weight gain, adolescent males gain an average of ____ lb/year.
a. 10
b. 20
c. 30
d. 40
b. 20
It is difficult to meet vitamin and mineral needs at calorie levels below:
a. 1300 kcal
b. 1600 kcal
c. 1800 kcal
d. 2000 kcal
c. 1800 kcal
What is the life expectancy in Canada?
a. 73 years
b. 78 years
c. 82 years
d. 85 years
c. 82 years
Chronic conditions with modifiable risk factors include which of the following?
a. heart disease
b. cancer
c. stroke
d. type 2 diabetes
e. all of the above
e. all of the above
On average, lean body mass decreased by ____ per decade from age 30 to 70.
a. 2-3%
b. 5-7%
c. 8-10%
d. 12-13%
a. 2-3%
Toddlers can be defined as:
- between the ages of 1-3 years
- toddler stage is characterized by rapid increase in gross and fine motor skills
Preschoolers can be characterized by:
- increasing autonomy
- broader social circumstances
- increasing language skills
- expanding self-control
Define: weaning
caloric needs met without bottle or breastfeedings
What might early weaning result in?
- impaired growth (due to reduced calories)
- constipation (from low fluid intake)
What is the recommended age for weaning?
between 12 and 24 months
What might late weaning result in?
- later problems with feeding
- problems with speech development
What are the recommendations for young children (Health Canada)?
- Serve small nutritious meals and snacks each day
- Do not restrict nutritious foods because of their potential allergen content. Offer a variety of foods from the four food groups
- Satisfy their thirst with water
- Respect your children’s ability to determine how much food to eat
- be patient
- Be a good role model
- Organize fun physical activities
T or F: Toddlers and preschoolers have large stomachs so they can consume more food less often
FALSE; toddlers and preschoolers have small stomachs, and so they need to eat small amounts of food more often throughout the day
T or F: You should offer a variety of nutritious foods, including some choices that contain different flavours, colours and textures such as 2% milk, peanut butter and avacados (toddlers and preschool)
True
What are some facts surrounding fluid intake for toddlers and infants?
- encourage young children to drink water to quench their thirst and replenish body fluids
- Canada’s food guide recommends that children choose vegetables and fruit more often than juices
- children also need a total of 500 mL (2 cups) of milk everyday to help meet their requirement for vitamin D
If a toddler rejects a food the first time it is offered, should it be offered again?
Yes, the more often children are exposed to a new food the more likely they are to accept it
What are the energy needs for children ages 13-36 months?
[89 x child’s weight (kg) - 100 + 20kcal]
- account for age, gender, height , weight, physical activity level
- range from approx 1100-2000kcal per day
- Most Canadian toddlers / preschoolers meet or exceed these recommendations
What is the RDA for protein for toddlers and preschoolers?
RDA for protein: 1.1g/kg/day (1-3 years)
0.9g/kg/day (4-8 years)
*Most Canadians meet these recommendations
Most toddlers and preschool-age children have adequate vitamin and mineral consumption except for:
- Iron
- Calcium
- Vitamin D
Approximately _____ % of children aged 1-5 years have iron-deficiency anemia in Canada
3.5-10.5%
Why is iron-deficiency anemia so prominent in First nations communities?
- high consumption of evaporated milk and cow’s milk at 6 months of age; prolonged breastfeeding without sufficient supplementation
What can Iron-deficiency anemia lead to?
- May cause delays in cognitive development and behavioural disturbances
How can iron-deficiency anemia be prevented?
- Limit milk consumption to 2 cups per day since milk is a poor source of iron
- Provide iron-rich foods: fortified cereal, hamburger whole grain or enriched bread, beans, meat
- Canadian task force on the periodic health examination recommends that all high-risk infants should be screened at 6 and up to 12 months
How can Iron-deficiency anemia be treated?
- Iron supplements (typically flavoured drops)
- counseling with parents
- repeat screening
- Micronutrient powders: single dose sachets containing iron in a powder form, which are easily sprinkled onto any foods prepared in the household
What is the calcium RDA for children?
RDA for children 1-3 years is 700 mg/day
RDA for children 4-8 years is 1000mg/day
How can we ensure adequate intake of calcium?
- milk and milk alternatives
- dark green vegetables
- fish with soft bones that are eaten, such as canned salmon or sardines
What is the vitamin D RDA for children aged 1-8 years?
600 IU
Approximately ___% of Canadian children are deficient in vitamin D
20%
For toddlers: it may take up to ____ exposures to new foods before acceptance
8 to 10
What are some negative ways that parents get their children to eat vegetables?
- “Clean your plate” This reduces child’s ability to listen to hunger cues
- “Instrumental feeding: using food as reward, child value the reward foods more, and healthful food less
- Heavy restriction of less healthy foods, may overindulge on the food when have access
What are some common pitfalls related to feeding toddlers and preschoolers?
- don’t try to get food into child
don’t expect child to be consistent - avoid too much or too little hunger
- don’t allow grazing
How can you overcome the pitfalls associated with feeding toddlers and preschoolers?
- prepare food that you and your family likes
- offer everyone the same meal
- provide 4-5 dishes including bread
- include familiar and unfamiliar foods
- teach and model aproppriate eating behaviours
- know children’s needs
Beginning at age 3, the DRI equations for estimating a child’s energy requirements are based on a child’s:
a. age, height, weight, activity level and gender
b. age, weight, height, BMI, and activity level
c. activity level, age, height, and gender
d. activity level and BMI
a. age, height, weight, activity level and gender
At what percentile are children aged 2-5 years considered obese? (WHO)
Obese:
BMI > 97th percentile for age and gender
At what percentile are children aged 2-5 years considered overweight? (WHO)
Overweight:
BMI > 85th percentile for age and gender
How much physical activity should toddlers and preschoolers obtain daily?
- 180 minutes of physical activity per day, at any intensity
- up to 60 minutes per day at high intensity
What are some interpersonal and environmental considerations for health of children? **Short answer Question
- Child care (what is being fed to the children at the centre, if they follow activity guidelines
- Neighbourhood environment (playing outside with neighbours)
- Family influence- role model (parents need to be outside being active as well and eating healthy foods)
- Peers (what peers are eating)
- Parenting style
- Media (commercials on TV)
Discuss the four parenting styles in regard to feeding:
- Authoritarian: control child eating, restricting food, forcing food (low warmth/high demandingness)
- Indulgent: minimal guidance/structure, child eating whenever and whatever (high warmth, low demandingness)
- Neglectful: parenting is absent, foods available may be inadequate/inappropriate (low warmth, low demandingness)
- Authoritative: balances approach; parent determines what offered, child determines what is eaten (high warmth, high demandingness)
Compared to authoritative parenting, higher rates of obesity were shown with:
- Authoritarian: risk was 4 x higher
- Indulgent: risk was 2 x higher
- Neglectful: risk was 2 x higher
How much screen time is recommended for children ages 0-2 years?
No screen time is recommended
How much screen time is recommended for children ages 2-4 years?
Screen time should be limited to under 1 hour per day
According to a study of 3 yr old children, What was each one hour increment in TV viewing associated with?
- higher intakes of sugar-sweetened beverages, fast food, red and processed meat, total energy intake, and percent energy intake from trans fat
- Lower intakes of fruits and vegetables, calcium and dietary fiber
What was television viewing associated with?
- Displacement of physical activity –> obesity
- increased energy intake (snacking) –> obesity
To reduce risk of overweight and obesity: we should decrease what?
- sugar-sweetened beverages
- energy dense foods
- tv screen time
- fast foods
- portion sizes
To reduce risk of overweight and obesity: we should increase what?
- calcium rich diets
- diets high in fiber
- vegetables and fruits
- daily breakfast
- physical activity
What are the treatment guidelines for overweight and obesity?
Goal: maintaining weight while increasing height
- weight loss typically not recommended; should not exceed 1 pound per month