Week 11 Lecture (Pregnancy) Flashcards

1
Q

Conception

A

Fertilization of egg by sperm

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2
Q

First step of Conception

A

Ovulation: egg released from the ovary, picked up by fimbriae and enters the fallopian tube

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3
Q

How many sperms are lost on the way to fertilize the egg

A

200-400 mil sperm start out, 50% flows back out the vagina, others die from acidity, of sperm that survive that half go through the wrong tube, at that point only 200-300 sperm make it as far as the egg

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4
Q

how big is the window post ovulation to fertilize egg

A

24hrs

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5
Q

how long do sperm live in vagina

A

48 hrs up to 8 days

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6
Q

Sperm work together to dissolve BLANK by secreting BLANK to get through to the egg

A

dissolve the zona pellucida by secreting hyaluronidase to get through to the egg, then the zona thickens again to prevent other sperm

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7
Q

How many sperm makes through to the egg and where does conception occur

A

1 sperm fertilizes the egg in the fallopian tube

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8
Q

Whats a fertilized egg called

A

Zygote

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9
Q

How long it take for zygote to plant in uterus

A

zygote goes from fallopian tube and plants in uterus taking 5 days

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10
Q

Is absence of period a sure way to know pregnant

A

no, could be from stress or smth else, and also spotting/bleeding can happen during implantation

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11
Q

Symptoms of pregnancy

A

tenderness of nipplesm nausea/vomiting, constant peeing and fatigue

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12
Q

What tests are designed to detect pregnancy

A

chemical tests to find HCG (human chorionic gonadotropin) in women pee

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13
Q

What are some pregnancy tests by 3rd of 4th month of pregnancy

A

fetus heartbeat, movement, ultrasound

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14
Q

for ppl 25-34, without prevention, chance of getting pregnant after 1 yr of trying is:

A

85%

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15
Q

Whats Nagele’s Rule

A

To calculate Delivery date use nageles rule:
menstruation start date - 3 months + 7 days + 1 year = estimated due date

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16
Q

Gestation

A

time from conception until birth, usually 280 days (40 weeks)

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17
Q

How many trimesters in pregnancy

A

3 trimesters, 3 months each

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18
Q

whats the Embryonic Stage

A

First 8 weeks of pregnancy from conception, placenta (uterus for pregnancy) develops
- Connects fetus to wall of uterus for oxygen and nutrients
- separates parents circulatory system from fetus
- Placenta takes over secretion of progesterone and estrogen from the corpus leuteum

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19
Q

What 2 thinks happen in the embryonic stage

A

placenta (uterus for pregnancy) develops
- Connects fetus to wall of uterus for oxygen and nutrients
- separates parents circulatory system from fetus
- Placenta takes over secretion of progesterone and estrogen from the corpus leuteum

Amniotic Sac develops (the sac holding water protecting embryo)
- protects emryo from damage and temp

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20
Q

Describe the 3 months of the first trimester for embryo development

A

Month1
- most major organce develop
Month 2
- Umbilical cord develops and attaches embryo to placenta
- further development (face feet major blood vessels)
Month 3
- now the embryo is a fetus
-limbs and hair are now pronounced
- can see gender in ultrasound

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21
Q

First trimester effects on the mother

A

tingling, fullness of breasts, nausea, changes in appetite, frequent peeing, increased vaginal secretion

First trimester starts morning sickness (which can be at any time) associated with lower miscarriage rates

first trimester usually uncomfy

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22
Q

When does embryo become fetus

A

In third month of first trimester

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23
Q

Second trimester effects on fetus

A

fetal movements can be detected,
Fifth month
- heartbeat heard with stethoscope
Sixth Month
- fetus can open its eyes
End of second trimester fetus is sensitive to light and sound

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24
Q

If baby was born in second trimester, would it survive

A

fetus cannot live on own at this point unless tech assistance provided

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25
Baby born around week 23 chance of survival
20%
26
born around week 28 chance of living
90%
27
Second trimester effects on mother
indigestion, constipation (fetus putting pressure on organs) breasts enlarge, stretch marks, second trimester usually better than first and women report feeling good
28
Describe the Third Trimester
Baby: By end of 7th month, brain and nervous system complete, fetus usually head down to prepare for delivery Effects on mother: third trimester is the most uncomfortable, balance, backaches and cramps, shortness of breath Weight gain of 25-35 pounds
29
Some trans men take testosterone to stop
menstruation and ovulation and change secondary sex characteristics, stopping test will mean ovaries uterus will resume menstrual cycle
30
Challenges faced by trans men during pregnancy or post partum
identity problems, and managing other peoples biases
31
Can you have sex during pregnant
yes u can have sex until labour, fetus protected by amniotic sac and mucous plug in cervix
32
ppl with history of miscarriage or cramping issues, when having orgasms can cause
trigger labour
33
Masters and Johnson, regarding pregnancy found
initial decline in sex satisfaction, decline in first, increase in second (cuz more comfy), decrease in third
34
Vasocongestion during pregnancy may
enhance arrousal
35
Are midwives good or bad
midwives are good for labour and better satisfaciton
36
2 delivery options
vaginal birth and Caesarean-Section
37
typically how much does cervix dilate during labour
10cm
38
Does birth need pain management
no, only NEED if C section
39
whats the C seciton pain meds
general or spinal anaesthesia
40
pain management for vaginal birth
may be pharmacological or non-pharmacological like water immersion
41
whats engagement
few weeks before labour, fetus turns so wide part of head is against pelvid bones
42
Whats Effacement
thinning of cervix to prepare for dilation
43
how many people have amniotic sac rupture
12%
44
How many stages of birth
3 stages
45
how long does first time labour last
8.6 hrs, bout half time for subsequent pregos
46
First stage of birth describe
3 phases defined by dilation Early Phase: 4 cm Activity Phase: 8 cm Transition: fully dilates to 10 cm, allows baby to pass through, short but difficult stage
47
How often do contractions have to be for people to go to hosptial
4-5 min apart
48
Describe birth stage 2
Stage 2 begins when cervix fully dilated, head moves into vagina, mom pushes to move baby out lasting 80 min, once baby head visible, blood and mucus cleared from airways, stage 2 ends with birth of baby
49
Birth stage 3
placenta detaches from uterus and expelled with other material called afterbirth, contractions help uterus go back to small
50
What do vhildbirth prep classes encourage
non pharmacological techniques like breathin, soaking in a tub, birthing balls
51
What are some pharmacological anesthetics used
tranquilizers or narcots, epidurals, spinal blocks, anesthesia
52
Reasons for C section
baby too big, pelvis narow, unbilical cord will pass through before baby or baby in wrong position
53
Immediately after baby is born
parent and baby do skin to skin and soon breast feed, antibiotics and vitamin k given to baby so no hemmorage
54
What are the 3 major categories of postpartum conditions and why does it happen
Why; Estrogen and progesterone returning to normal levels Postpartum Blue: resolves in days 80% Postpartum Depression: extreme sadness in first year or years after birth, 10-20% Postpartum Psychosis: rlly bad but rlly rare
55
Do couples wait for sex after birth?
used to say 6 weeksbut now doctors say as soon as couple ready
56
How long should mom do exclusive breast feeding
6 months, then after complimentary should be given
57
What hormone stimulate milk production
prolactin
58
how many days post delivery milk
2-3
59
breasts produce what before milk
Colostrum
60
What hormone causes milk to release
Oxytocin, can also cause orgasms
61
Can breastfeed be a contraceptive
yeah it delays mentrual cycle
62
Miscarriage is
Spontaneous Abortion, most of the time first 20 weeks,
63
how common is miscarriage
10-20%
64
most common reason for miscarriage
defect in embryo or fetus
65
Describe Rh Incompatibiliy
antibodies in moms blood destroys red blood cells in fetus - antibodies form when parents Rh negative blood mixed with child Rh positive When mom has Rh negative blood and Fetus has Rh Positive results in fetal anemia,, disability, death, risk low for first prego but higher for subsequent
66
3 types of pregnancy hypertension (high blood pressure)
1. pregrnancy induced hypertension: associated with prego 2. pre-eclampsia: high blood press, edema and proteinuria 3. Eclampsia: seizure and coma, may be from pre-eclapmpsia and may result dead
67
Causes of Congenital Anomolies
Genetics, Maternal Illness or Infection, Use of Drugs or Alc
68
What can reduce causes of congenital anomolies
Folic Acid Supplements
69
3 Ways to test for Congenital Anomolies
1. testing moms blood for Alpha-fetoprotien (AFP is produced by fetus, if in moms blood, smth wrong with uterine wall) 2. Amniocentesis: chorionic villus sampling, more invasive 3. NIPT Testing: analyzing fetus DNA in moms blood
70
What do doctors do sonographic exams for when moms AFP too high
1. underestimation gestational age 2. multifetal gestation 3. death
71
How early is a preterm baby
before 37 weeks, 60-80% deaths due to preterm, preterm babies are usually underweight
72
when do most babies weight gain
last few weeks
73
Anoxia
umbilical cord compressed as baby passes through, may need to do C section, can lead to major disability or deat
74
Stillbirth
Baby born dead after 28 weeks of gestation and weighs at least 500 pounds, mostly happens in low income countries
75
Maternal Mortality
mom dies, rare, but high in low income countries
76
3 increase risk factors to maternal death
1. living in rural and poor communities 2. young adolescents 3. lack of access to skilled care
77
How to diagnose infertility
after 1 yr unprotected sex if woman is under 35, after 6 months if aboce 35
78
Primare infertility
could never become fertile
79
Secondary Infertility
Could be fertile in past but now cant
80
How many people in canada suffer from infertility
1 in 8 couples, 40% mans faults, 40% woman, 20% bother unknonw
81
How many men have male infertility and whats most common cause
1/10, low sprm count
82
How many women have male infertility and whats most common cause
1/12, irregular ovulation
83
Treatment of infertility
lots of treatments, first step firtility drugs, to make hella eggs release in single cycle, makes twins rlly common
84
what percentage of twins result from fertility treatments
70%
85
Wharts Artificial Insemination
inserting sperm directly into vagine or uterus
86
Vitro Fertilization
if womans reproductive tracked blocked, sperm and egg concepted in lab, and replaced in uterus
87
Gamete Intrafallopian Transfer
egg and sperm collected and put directly into fallopian tubes
88
Zygote Intrafallopian transfer
egg already concepted put into fallopian tubes to cause natural implantation
89
Surrogacy
female outside of couples becomes pregnant from any ART method and delivers baby
90
Is ART associated with hella multi births
yes, 70% of twins, 99% of higher-order multiples are from fertility treatment
91
What % of people who use ART are sexually and gender diverse
30%