OB/GYN pretest Flashcards

1
Q

rate of twins?

A

1/250

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2
Q

results of 2 vessel cord?

A

<1% singleton 2.5% of SAB increased in diabetic moms

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3
Q

t/f: hydropnephrosis/ hydroureter is benign in pregnancy?

A

true. gravid uterus compresses structures, progesterone relaxes things

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4
Q

how is glucose filtration affected during pregnancy?

A

GFR is increased, and glucose filtration is decreased

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5
Q

whats a succenturiate placenta?

A

accessory lobe located away from the main placenta –> can give way to PPH

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6
Q

whats a fenestrated placenta?

A

middle is missing

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7
Q

define: OB conjugate

A

shortest distance between promontory of sacrum and symphysis pubis ~10.5 cm

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8
Q

types of pelvic shapes

A
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9
Q

what is meant by “mentum transverse”

A

chin is presenting part

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10
Q

what does a saltatory pattern on fetal heart tracing represent?

A

brief acute hypoxia that is seen in second phase of labor

  • characterized by increased variability
  • be wary of progression to acidosis
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11
Q

who can attempt TOLAC?

A

pt with history of low transverse

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12
Q

diagnostic tests that arereassuring for fetal lung status?

A

1) + phosphatydal glyercol in amniotic fluid
2) ratio > 2/1 of L/s in blood

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13
Q

increased systolic:diastolic cord doppler can signs of….

A

IUGR

preE

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14
Q

progesterone value that indicates a viable fetus?

a non viable fetus?

A

<5ng/ml vs >25ng/ml

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15
Q

nl weight gain ranges during pregnancy?

A

normal weight= 25-35 lbs

underweight= 40

obese= 15

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16
Q

basic phys of LE in pregnancy

A

increase venous pressure due to compression of IVC + decreased plasma osmolality due to dilutional affect

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17
Q

what are indications to proceed with NSVD with breech presentation? what about “stargazer?

A

frank breech

flexed head

nl fluid

weight between 2500-3800

“stargazer= extended neck= CS!!

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18
Q

signs of fetal metabolic acidosis

A

tachy

0 variability

lates

***signs for emergent section

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19
Q

what is the appropriate amount of fetal kicks?

A

~10/2hr

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20
Q

treatment for any imbedded placenta (acc-per)

21
Q

when do you see ACUTE polyhydramnios?

A

before 28 weeks, with preterm labor

22
Q

what are complications of polyhydramnios

A

placental abruption

uterine dysfuntion

PPH

23
Q

indications for cerclage?

A

hx of >3 2nd/3rd tri losses or hx of preterm deliveries

***cervical length < 25 mm is sketchy

24
Q

when is indomethacid contraindicated?

A

after 34 weeks

-oligohydramnios –> can decrease fetal urine

25
whats a vasa previa? what are the consequences?
when fetal vessels overlie the os due to valementous cord insertion can cause rapid exsanguination of fetus (baby doesn't have a lot of blood to loose to begin with)
26
post delivery risks for IUGR babies?
hypoxia at birth due to placental insufficiency multiorgan thrombosis due to polycythemia as comp for hypoxia
27
whats the anti-D titer indicative of fetal hemolytic dz?
1:16
28
order of major congenital malformations in patients with preexisting DM?
CARDIAC \>\> msk \> nervous system
29
whats the one diabetic seq that WORSENS in pregnancy?
proliferative neuropathy
30
how is hyperthyroidism treated in pregnancy? effects to baby?
treated with thionimides (PTU) --\> crosses placenta --\> babies can have goiter and hypothyroidism
31
how do you treat ITP in pregnant women with counts \>50,000 and asymptomatic?
you dont.
32
best diagnostic test for suspected DVT?
compression US
33
stillborn with hydrops, petechiae/ purpuric lesions and hypertrophic placenta?
syphillis \*\*parvo does not have hypertrophic placenta or skin findings
34
are neonates more at risk from mom with crhonic hep B or acute hep B?
ACUTE!!
35
timing of GBS meningitis vs listeriosis?
GBS iswithin one week, listeria withini 3-4
36
montevideo units indicative of appropriate labor contractions?
200MVU, and they should have 3 contractions in 10 minutes, so each should be about 70mmHG in intensity
37
corneal abrasions more likely in.....
forceps over vacuum delivery
38
a third degree tear goes through the rectal ______ but not the rectal \_\_\_\_\_\_\_
sphincter, mucosa
39
how are you "supposed" to handle a prolonged latent phase
pain management so ideally they can go to sleep and wake up in the active phase
40
is external cephalic version appropriate in labor/after broken membranes
no, uterus is too contracted and broken membranes put at risk of cord prolapse
41
when do you use internal podalic version?
in the delivery of the second twin
42
most common uro finding in MS?
detrusor HYPERREFLEXIA
43
cause of fetal demise in Factor V leiden mutation?
uteroplacental artery microthrombosis build up
44
whats greatest risk for pre-eclamptic babies?
restricted growth
45
tests to do for reccurrent second tri losses?
cervical length for cervical insufficiency hysterosalpingogram to look for uterine anomolies
46
nuchal trans
47
achondroplasia moms and risk
spinal stenosis can make an epidural difficult and c/s are common due to distorted shape of pelvis -achondroplasia fetus' should be by c section
48
most common anomalies from fetal alcohol syndrome?
cardiac and joint problems
49
what does cloramphenicol cause? what do sulfa drugs do?
chlor= grey baby syndrome sulfa= kernicterus