OB/GYN pretest Flashcards
rate of twins?
1/250
results of 2 vessel cord?
<1% singleton 2.5% of SAB increased in diabetic moms
t/f: hydropnephrosis/ hydroureter is benign in pregnancy?
true. gravid uterus compresses structures, progesterone relaxes things
how is glucose filtration affected during pregnancy?
GFR is increased, and glucose filtration is decreased
whats a succenturiate placenta?
accessory lobe located away from the main placenta –> can give way to PPH
whats a fenestrated placenta?
middle is missing
define: OB conjugate
shortest distance between promontory of sacrum and symphysis pubis ~10.5 cm

types of pelvic shapes

what is meant by “mentum transverse”
chin is presenting part
what does a saltatory pattern on fetal heart tracing represent?
brief acute hypoxia that is seen in second phase of labor
- characterized by increased variability
- be wary of progression to acidosis

who can attempt TOLAC?
pt with history of low transverse
diagnostic tests that arereassuring for fetal lung status?
1) + phosphatydal glyercol in amniotic fluid
2) ratio > 2/1 of L/s in blood
increased systolic:diastolic cord doppler can signs of….
IUGR
preE
progesterone value that indicates a viable fetus?
a non viable fetus?
<5ng/ml vs >25ng/ml
nl weight gain ranges during pregnancy?
normal weight= 25-35 lbs
underweight= 40
obese= 15
basic phys of LE in pregnancy
increase venous pressure due to compression of IVC + decreased plasma osmolality due to dilutional affect
what are indications to proceed with NSVD with breech presentation? what about “stargazer?
frank breech
flexed head
nl fluid
weight between 2500-3800
“stargazer= extended neck= CS!!
signs of fetal metabolic acidosis
tachy
0 variability
lates
***signs for emergent section
what is the appropriate amount of fetal kicks?
~10/2hr
treatment for any imbedded placenta (acc-per)
hyst
when do you see ACUTE polyhydramnios?
before 28 weeks, with preterm labor
what are complications of polyhydramnios
placental abruption
uterine dysfuntion
PPH
indications for cerclage?
hx of >3 2nd/3rd tri losses or hx of preterm deliveries
***cervical length < 25 mm is sketchy
when is indomethacid contraindicated?
after 34 weeks
-oligohydramnios –> can decrease fetal urine
