nutrition for a lifetime Flashcards
prenatal period
time between conception and birth
aka pregnancy
lactation
milk production for breastfeeding
life stages
prenatal
lactation
infancy
childhood
adolescence
adult
older adult
why study nutrition for different life stages
you may become a parent in the future
your parents and grandparents may experience declining physical fin
you are likely to experience these changes
long-term health related practices
conception
moment when a sperm enters an egg
preconception period
before a female of childbearing age becomes pregnant, and a male who is sexually mature father of a child
before pregnancy, lifestyle choices of females and males influence the chances of having a normal pregnancy and healthy baby. these include
consuming nutritionally adequate diet
achieve and maintain healthy BMI
avoid harmful drugs
exercise regularly
gestation
conception to birth of full term infant
full term infant
38-42 weeks
fertilized egg divides repeatedly after conception forming a mass of cells that enters the
uterus
embryo
human organism from 14 days to 8 weeks after conception
fetus
human organism from 8 weeks after conception until birth
first trimester: embryo develops
most of its organs
prenatal critical stage occurs in ___ trimester
first
first trimester critical stage
negative effects of nutrient deficiencies and excesses and exposure to toxic compounds
sedan semester: organs continue to grow and mature; has fully formed ____, ____, ____, ____, ____, ____
arms, hands, fingers, legs, feet, toes
third trimester fetus ____ in length, multiplies weight by ____
doubles
3-4
placenta
organ of pregnancy that connects the uterus to the embryo/fetus via the umbilical cord
placenta function
transfer nutrients and O2 into fetus
transfer waste from fetus to mothers bloodstream to eliminate
the placenta does not filter
many microbes and toxic substances
a fetus needs to spend at least ____ weeks developing in the uterus to not need special care after birth
37
low birth weight baby
<5.5 lb at birth
second leading cause of infant death
low birth weight
LBW infants are more likely to occur with
younger females (<20)
older females (>40)
females who smoke
LBW is often associated with
preterm or premature birth
preterm
born before 37th week
early preterm
born before 34th week
prolactin stimulates
development of milk producing tissue in the breast
morning sickness
nausea and vomiting associated with pregnancy that can occur at any time of the day
morning sickness usual time frame
early first trimester to 16th week
morning sickness tips
avoid odors and fried or greasy foods; smaller but more frequent meals and snacks; ginger tea
in the first trimester fatigue may result from
physiological anemia
physiological anemia
lower concentration of RBD in blood stream, normal in pregnancy
in the first trimester blood volume increases by
150%
third trimester fatigue may be due to
physical demand of carrying a rapidly growing fetus
edema
fluid retention that usually results in minor swelling, especially hands and feet
pregnancy constipation can occur due to
hormones from placenta that relax digestive tract
pregnancy constipation treatment
adequate intake of fiber and fluid
pregnancy heartburn can occur due to
uterus pushing upward in the mothers abdominal cavity
pregnancy heartburn treatment
smaller meals, avoid lying after eating, less fatty foods
kilocalorie increase for first trimester
EER+0
kilocalorie increase for second trimester
EER+340
kilocalorie increase for third semester
EER+452
what is the increase of protein DRI from not pregnant to pregnant
46 to 71
what is the increase of vit c DRI from not pregnant to pregnant
75 to 85
what is the increase of thiamin DRI from not pregnant to pregnant
1.1 to 1.4
what is the increase of niacin DRI from not pregnant to pregnant
14 to 18
what is the increase of folate DRI from not pregnant to pregnant
400 to 600
what is the increase of vit d DRI from not pregnant to pregnant
stays the same; 15
what is the increase of calcium DRI from not pregnant to pregnant
stays the same; 1000
what is the increase of iron DRI from not pregnant to pregnant
18 to 27
what is the increase of iodine DRI from not pregnant to pregnant
150 to 220
folate increase ___% from pre pregnancy
50
iron increases ____% from prepregnancy
50
when is fish not safe to eat in pregnancy
larger fish
swordfish, shark, king mackerel, tilefish, marlin, orange roughy, bigeye tuna
why is fish not always safe to eat
some contain methylmurcury
what does large amounts of methylercury do in pregnancy
toxic, damage fetal nervous system
pregnancy craving cause
unknown
pica
craving and eating nonfood items such as laundry starch, chalk, clay, cigarette ashes, soil
pica may be associated with
iron, zinc deficiencies
recommended range of weight gain during pregnancy depends on
pre pregnancy weight
weight gain recommendation for mother BMI <18.5 (underweight)
28-40lb
weight gain recommendation for mother BMI 18.5-24.9 (healthy weight)
25-35lb
weight gain recommendation for mother BMI 25-29.9 (overweight)
15-25lb
weight gain recommendation for mother BMI >30 (obese)
11 to 20 lb
weight gain recommendations are higher for females with
more than one fetus
females who gain excess weight during pregnancy are likely to
retain extra pounds after birth
give birth to high birth weight baby
high birth weight baby
> 8lb 13 oz
high birth weight babies have a higher risk of
being injured during birth
obesity, diabetes, HTN
females who are underweight and do not gain enough weight during pregnancy are at risk of
having preterm or low birth weight infants
distribution of weight gain during pregnancy: blood
4 lb
distribution of weight gain during pregnancy: breasts
2lb
distribution of weight gain during pregnancy: uterus
2lb
distribution of weight gain during pregnancy: fat, protein, retained fluid
11lb
distribution of weight gain during pregnancy: fetus
7.5lb
distribution of weight gain during pregnancy: placenta
1.5lb
distribution of weight gain during pregnancy: amniotic fluid
2lb
healthy pregnancy weight gain rate
up to 5 lb during first trimester
3-4lb per month during 2nd and 3rd
prenatal care
specialized health care for pregnant females
prenatal care should begin
early in pregnancy