CH 21 Woman during pregnancy Flashcards
(115 cards)
WHAT should you screen for in pregnancy when adding a new member to the family?
physical, emotional, and/or financial abuse during preg and postpartum period
zygote and blastocyst
at fertilization it’s a zygote
then blastocyte up to 2 weeks (ball of cells)
embryo weeks
embryo is 2-8 weeks
fetus in weeks
8 weeks to term
early term in weeks
37 weeks (lungs are now mature) through 38 weeks plus 6 days
full term in weeks
39 weeks through 40 weeks plus 6 days (Estimated date of delivery (EDD)) = 40 weeks)
-most women give birth at 40 weeks
Late-term in weeks
41 weeks through 41 weeks plus 6 days
-more awake and hungry; more neurological development
Post-term in weeks
42 weeks and beyond
-do not encourage beyond 42 weeks, placenta deterioriates
at what stage of development is baby not susceptible to teratogens?
first 2 weeks; blastocyst stage
no organ system for teratogen to damage
implantation bleeding
~2 week after conception, when fertilized egg implants to uterus = light bleeding
Ask how many days lasted? timing normal? duration of menses?
“last period came 1 week early and lasted 1 day and was very light”
when is fetus most susceptible to teratogenic drugs?
week 3-8 is most intense organogensis (organs developing)
stages of human development
brain develops throughout pregnancy
naegele’s rule
expected date of delivery EDD by last menstrual period
- substract 3 months from 1st day of LMP, add 7 days = 40 weeks from LMP or 38 weeks from date of conception
can be inaccurate if have irregular menses or unclear LMP
when is the MOST accurate source for EDD?
1st trimester ultrasound
-using crown-rump measurement
-accurate with potential of 7 day error mragin
what is another way to estimate EDD by ultrasound that is not accurate?
2nd trimster ultrasound (up to 22 weeks)
using multiple fetal measurements BUT 14 day error
why evaluate uterine size?
provides info during antepartum period about fetal growth and maternal well being
size of non gravid and at 8 weeks old?
non gravid - lemon
8 weeks - tennis ball/orange
when can you hear fetal heart sounds?
starting at 10 weeks and fersure at 12 weeks via doppler
-baseball size
what week is when the fetus is rising above symphysis pubis?
- at 12 weeks (can also reliably hear FHT)
- softball/grapefruit
at what week is fundal height halfway between symphysis pubis and umbilicus?
16 weeks
at what week is fundal height at umbilicus?
20 weeks
from 20 weeks to 36 weeks, how high does fundal height grow per week?
1 cm per week *correlates to gestational age plus or minus 1 cm
-ex: 28 week gestion, u anticipate fundal heigh t is 28 cm above umbilicus + or - 1 cm
when does fundal height drops?
-at term. uterus dips into pelvis with fetal head engagement
-vertex (cephalic) position by 36 weeks
how much calories does she need during pregnancy?
-additional 300 calories/day over baseline
-need more calories if 1-2 years from menarche (mom is still growing) and w/ mult gestation