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OB Chapter 7, uterus changes
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Goal of maternity care is a healthy pregnancy w/physically safe and emotionally satisfying outcome for
Mother
Baby
Family
After conception, changes occur in the woman's body to
Support & nourish fetus
Prepare for lactation & labor
Maintain mom's health
Nonpregnant uterus weighs about ______ and has capacity of __________
1.8-2.5 oz
10 ml
By term, the uterus weighs _______ and has a capacity of ________
1.8-2.6 lbs
5000ml/ 5L
Uterine growth occurs due to _______ in the first trimester
hyperplasia from stimulation by estrogen and growth factors
Uterine growth in the 2nd and 3rd trimeseter is caused by
hyperplasia and hypertrophy as the muscle stretches and accommodates fetus
By term the wall of the uterus thins to ____ which helps for easier auscultation of the fetus heart
.5-1 cm
At 10 weeks the uterus is the size of an
orange
At 12 weeks the uterus is the size of a
grapefruit
When is the uterus able to be palpitated above the pubis symphysis
12 weeks
When do patients begin to "show"
14 weeks
When does the fundus reach midway btwn the symphysis pubis and the umbilicus
16 weeks
When is the fundus located at the umbilicus
20-22 weeks
When does the xiphoid process push against the diapghrgram and cause SOB
36 weeks
Fundus measurements should correlate with
weeks of pregnancy
What is lightening
fetus descends into pelvis, mother can breath easier, put urinates more frequently due to pressure on the bladder
When does lightening occur
38-40 weeks
What are Braxton Hicks contractions
irregular and painless contractions that occur intermittently
What is the purpose of Braxton Hicks
facilitate uterine blood flow
Increase O2 to fetus
Can Braxton Hicks increase in intensity/ duration, or cause cervical dilation
no
What happens to blood flow as uterus increases in size
increase rapidly(750 ml/min), can lead to anemic mom's
What are 3 factors that decrease uterine blood flow
low maternal arterial pressure
contractions of the uterus
supine position(mother)
Author
tville01
ID
210816
Card Set
OB Chapter 7, uterus changes
Description
OB Chapter 7 uterus changes
Updated
2013-04-02T01:08:58Z
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