III. Prenatal Care Flashcards
fetal assessment onwards not included
when to do amniocentesis?
15-20wks AOG
For karyotyping, FISH, Relieve hydramnios
when to do chorionic venous sampling?
10-13 wks AOG
For karyotyping
CI: fetal loss, limb reduction, oromandibular limb hypoplasia
Cordocentesis indication (Fetal blood sampling)
fetal anemia, tx of platelet alloimmunization
When does fetal movement occur:
Primi? __
Multigravida? __
Primi: 18-20wks
Multi: 16-18wks
HCG is produced by: ___
syncytiotrophoblasts
HCG: Detected in maternal serum or urine by 8 – 9 days after ovulation; Plateau approximately 16 weeks
Increase in hCG conditions:
give 3 out of 5
Increase in hCG conditions: oMultiple pregnancy oMolar pregnancy oExogenous injection o Impaired renal clearance o hCG secreting tumors from GI, ovary, bladder, lungs
first sonographic evidence of pregnancy
_____ sign surrounding the gestational sac.
Gestational sac: first sonographic evidence of pregnancy; implants eccentrically; double decidual sign surrounding the gestational sac.
Pseudogestational sac/pseudosac: fluid in the endometrial cavity with ectopic pregnancy; seen in the midline.
at what AOG do you see gestation sac?
4-5 wks
what do you see on UTZ in middle of 5th wk? findings?
yolk sac
echogenic ring with an anechoic center; confirms intrauterine location of pregnancy.
when do you see embryo in utz?
Embryo: linear structure adjacent to yolk sac; cardiac motion is noted.
> 6 wks
Up to 12 weeks AOG, this is predictive of gestational age within 4 days?
crown rump length
Put in order of appearance and state what wk of appearance.
Yolk sac
CRL
Embryo
Gestation sac
Gestation sac (4-5th wk AOG)
Yolk sac (middle of 5th weeks AOG)
Embryo (>6 wks AOG)
CRL (up to 12 wks)
fetal heart sounds:
by doppler: __ wks AOG
by stethoscope: __ wks AOG
10, 20 (80%)
heart sounds heard in all babies
22 wks AOG
normal weight gain for normal BMI?
underweight?
overweight?
obese?
25-35lbs
28-40lbs
15-25lbs
11-20lbs
