Lecture 3 - Part II Flashcards
Why is being underweight a bad thing if you are trying to conceive?
Increase risk of preterm birth and perinatal mortality
-BMI less than 18.5kg/m^
If you are underweight, what is the recommendation if you are trying to conceive?
Should gain extra weight during pregnancy (28-40lbs) in order to retain some weight gained for own stores
Why is being overweight a bad thing if you are trying to conceive?
- Increase risk of GDM and postpartum infections
- More likely to have complications at labor and delivery
- infant more lily to be born post term, high BW or macrocosmic
If you are overweight, what is the recommendation if you are trying to conceive?
Should avoid excessive Wt gain during pregnancy (15-25lbs) because they already have the extra fat stored you would normally need if they were at a normal wt
How much weight should each person gain depending on their weight pre-pregnancy?
Under: 28-40lbs
Normal: 25-35lbs
Over: 15-25lbs
Obese: 11-20lbs
When pregnant, how much weight gained goes towards what baby needs?
Breasts: 1-2lbs Baby: 6-8lbs Placenta: `1-2lbs Uterus: 1-2lbs Amniotic fluid: 2-3lbs
When pregnant, how much weight gained goes towards what mom needs?
Your blood: 3-4lbs
Your protein and fat storage: 8-10lbs
Body fluids: 3-4lbs
When do body fat stores increase the most?
Between 10 and 20 weeks then decrease towards the end
What % of the placenta males up the baby weight?
15-20%
How does mom get rid of the extra fluid in her body?
Mom pees a lot of it out in the first 48hrs
What happens when mom breastfeeds?
uterus contracts a little so it can get back down to the size it was, can be painful cramp feeling
How much weight should you gain in the 1st T?
2-8lbs
For the 2nd and 3rdT, how much weight should you gain?
~1lb/wk (norm) >1lb/wk (under) ~0.7lb/wk (over) ~0.5lb/wk (obese) ~1.5lb/wk (twins)
What rate of weight gain is more stable during pregnancy, maternal or fetal?
Maternal is more steady
Fetal has more variation in exponential growth periods
What are the risks of inadequate wt gain?
Increase maternal factors such as:
- low SES
- single moms
- minority groups
- cigarette smokers
- history of eating disorders
What happens when you have a large weight gain over a short period of time?
Water retention leads to signs of preeclampsia which is very risky for mom and baby
What is preeclampsia characterized by?
Hypertension
Water retention
Proteinuria (abnormal quantities of protein in the urine)
what is the recommended amount of weight to be lost after having a baby?
Initially you lose weight from baby and water but after should do 1-4 pounds per month until pre-pregnancy weight it achieved.
What happens if weight is lost too quickly after birth?
Can sacrifice milk production and effect quality and energy status
Should nourish adequately and exercise cautiously
What happens if you gain more weight than needed while pregnant in terms of weight loss?
The more the weight will be retained and it may take longer to lose
What is the placenta?
Organ that develops inside thee uterus in pregnancy, in which maternal and fetal blood circulate in close proximity so that materials can be exchanged between them
What are the main functions of the placenta?
Hormone and enzyme production
Site of breathing and exchange
Protection from harmful elements
What is able to cross into the placenta if mom ingests it/
Alcohol
Excess Vitamins
Drugs
Viruses
When does the placenta develop?
Precedes fetal development