week 1 Flashcards

1
Q

what does folic acid do and how does it help the fetus

A

it helps neural tube development to decrease risk of things like spina bifida, hydrocephalus, etx.

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2
Q

what are some risk factors for a pregnancy

A

smoking, drugs, BMI over 30, bad oral health, alcohol, vaccines (especially live attenuated)

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3
Q

how much folic acid should low risk individuals be taking during pregnancy

A

start with 0.4mg, take throughout pregnancy and while breastfeeding or 4-6 weeks pp

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4
Q

what would folic acid dosing be for moderate risk pregnancies

A

1.0mg once daily or 3 months prior to conception and 12 weeks gestation
decrease to 0.4 mg a day for the rest

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5
Q

what would folic acid dosing be for high risk pregnancies

A

4-5mg a day for 3 months prior to and throughout 12 weeks gestation. continue throughout pregnancy and while chest feeding

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6
Q

what is an example of medium risk pregnancy

A

someone who has family history of pregnancy issues

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7
Q

how long is the first trimester

A

week 1-13

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8
Q

how long is the second trimester

A

wees 14-26

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9
Q

how long is the third trimester

A

weeks 27 through term

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10
Q

what are the main things that affect the conception cycle

A

smoking, drug and alcohol use

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11
Q

why do we want embryo implantation to be high in uterus

A

to prevent spontaneous abortion and placenta preva(low lying placenta prone to bleeding)

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12
Q

draw out the conception process

A
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13
Q

where does the blastocyst come from

A

morula

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14
Q

what are the three layers of blastocyst

A

inner: embryoblast
blastocyst cavity: blastocele
outer cells: trophoblasts

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15
Q

which hormone signals that fetralization has occurred which makes the corpus lute

A

HCG

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16
Q

which hormones do the corpus luteum make a lot of

A

estrogen and progesterone

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17
Q

which layer of the blastocyst turns into the fetus

A

the embryo blast

18
Q

which layer of the blastocyst turns into the placenta

A

the trophoblast

19
Q

when does the corpus luteum die

A

week 12

20
Q

which hormone do pregnancy tests detect
and what level

A

HCG
over the counter tests detect it around 25IU/L

21
Q

when should a patient take a pregnancy test

A

during first void in the morning when levels are the highest concentrtaitno

22
Q

what is a normal IU/L of hCG when not pregnant

A

less than 5

23
Q

what is the chorion

A

lining of placenta

24
Q

how many mLs should the embryonic fluid be at term

A

1000mL

25
Q

which ratio is sampled from the amniotic fluid to determine fetal lung maturity

A

L/S ratio

26
Q

how many arteries and veins are in the umbilical cord

A

2 arteries
1 vein

27
Q

what is Whartons jelly

A

protects and encapsulates arteries and veins

28
Q

where is the ideal place for the umbilical cord to be

A

in the middle of the placenta

29
Q

what is the chorion frondsum

A

fetal side of placenta

30
Q

what is the decidua Basilis

A

maternal side of placenta

31
Q

when is the placenta complete and functional

A

12 weeks

32
Q

go through placental veins and styff

A
33
Q

how does a fetus excrete waste products

A

basically gets excreted into amniotic fluid which then gets excreted by maternal kidneys

34
Q

what is normal amniotic fluid amount

A

700-1000mL

35
Q

what is polyhydramnios

A

too much amniotic fluid

36
Q

what is oligohydraminos

A

too little amniotic fluid

37
Q

what are pulmonary surfactants

A

basically keeps the infants airways open (liquid made by the lungs to keep the alveoli open)
without it fetal lungs would collapse

38
Q

what is higher, fetal hgb or maternal hgb

A

fetal

39
Q

what is the age of viability

A

22-25 weeks

40
Q

what is a congenital disorder

A

birth defect that happens during intrauterine life

41
Q

what are the two infections that are teratogenic

A

rubella and varicella