antepartum testing Flashcards

1
Q

what tests are done in weeks 8-12

A

CBC, hub and hct, blood type, RH factor and antibody, UA, HIV, RPR/VDRL, Rubela, Hep B, TORCH, UDS, hCG, PAP
ultrasound

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2
Q

if mother has RH ____ and baby has ____ then the mother could develop ______ against baby

A

negative; positive; antibodies

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3
Q

what is RPR/VDRL tested for

A

syphilis

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4
Q

what is important to know about the T in TORCH testing

A

its toxico something… but just know that if a mom is pregnant she should not be cleaning out a cats letterbox or planting in a garden

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5
Q

what should we expect hCG to do early in pregnancy

A

first off this is what indicates a women is pregnant but the levels should double early in pregnancy (if abnormally high there could be another baby)

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6
Q

what does a positive pap smear indicate

A

the mother had or has HPV

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7
Q

ultrasound is very accurate to _____ pregnancies but after __-__ wks its not as accurate

A

date; 8-12

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8
Q

what tests are done in 12-24 wks

A

genetic screens; MSAFP
triple or quad
CVS/Amniocentesis
ultrasound

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9
Q

low levels of MSAFP indicate

A

down syndrome

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10
Q

high levels of MSAFP indicate

A

neural tube defects

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11
Q

what test is done 24-28 wks

A

glucose screening

antibody screen

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12
Q

if glucose screen is abnormal (over 140) then we do an intolerance test and if this is abnormal too then what are they dx with

A

gestational diabetes

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13
Q

what is given to the mother if she is RH negative

A

RHo D immune globulin

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14
Q

what tests are done at 28-40 wks

A
group B strep screening
CBC
RPR/VDRL
HIV
Hep B
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15
Q

what is group B strep

A

normal vaginal flora but is deadly to the baby

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16
Q

if mother is + for group B strep what should be done

A

she needs 2 doses of abx before labor (first dose needs to be given 4 hours before birth)

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17
Q

what screening combines all three chemical markers AFP, hCG, and estriol levels with maternal age to detect some trisomies and neural tube defects

A

triple marker screening

18
Q

what does the quadruple screen for

A

the same chemical markers as the triple marker screen but adds in inhibin- A to increase detection of trisomy 21

19
Q

if you see ____ cardiac activity during an _______ you are 95% sure you will make it to the end of _______

A

fetal; ultrasound;pregnancy

20
Q

if there is too much amniotic fluid indicated during an ultrasound this could mean

A

soemthing is wrong with the baby

21
Q

if there is too little amniotic fluid indicated during an ultrasound this could mean

A

the baby’s kidneys are not working well

22
Q

when will the placenta begin to age and what “grade” is this

A

grade 4 expected at 40 wks

*the placenta will calcify and not help the baby anymore… the baby will be smaller

23
Q

what type of ultrasound is useful in obese pt
done in 1st trimmester
and does not require a full bladder

A

transvaginal ulstrasound

24
Q

what ultrasound requires a full bladder in first half of pregnancy

A

abdominal ultrasound

25
Q

why does the bladder have to be full during ultrasound

A

so it pushes up the uterus above the pubic bone to get a better look

26
Q

what is the advantage of chorionic villi sampling over amniocentesis

A

it can be done earlier

27
Q

what is the disadvantage of chorionic villi sampling

A

higher risk of spontaneous abortion, fetal limb loss, infection and ROM

28
Q

after a CVS what should we instruct the pt to report

A

bleeding, cramping, or leakage of fluid

29
Q

why should pt empty bladder before an amniocentesis

A

reduce risk of bladder puncture

30
Q

what is amniocentesis used for

A

genetic testing

assessment of fetal lung maturity, hemolytic disease in fetus, intrauterine infection

31
Q

post procedure of amneocentesis what should you monitor for

A

monitor v/s, FHR and uterine contractions for 30 min after
*instruct pt to report fever, chills, leakage of fluid, vaginal bleeding, decreased fetal movement, or uterine contractions

32
Q

when is a percutaneous umbilical blood sample done (PUBS)

A

this is done because baby is in grave danger and this is when we do this

33
Q

for a PUBS what is the kleihauer-betke test

A

to insure that fetal blood was obtained

34
Q

when testing fetal status what could indicate is wrong with the baby if it is not moving a lot

A

hypoxic fetus

35
Q

tool that uses auditory stimulation to assess fetal well-being with EFM when NST is nonreactive

A

vibroacoustic stimulation (VAS)

36
Q

VAS is ONLY used when

A

baseline rate is within normal limits

37
Q

what are other interventions you can do instead of using VAS

A

give mom something cold to drink, popsicle, or sugar to wake up baby

38
Q

oligohydramnios

A

not enough amniotic fluid

39
Q

polyhydramnios

A

too much amniotic fluid

40
Q

what are the 5 indicators of a biophysical profile

A
fetal breathing movements
fetal movement
fetal tone
amniotic fluid volume
non stress test