Class 2: Preconception, conception, pregnancy Flashcards
where does fertilization occur?
Fallopian tube
how do we test for and confirm pregnancy?
hCG in urine and blood, confirmed through fetal heart rate/US
when is the most sensitive time during early pregnancy for teratogens to cause harm?
3-8 weeks aka the embryonic phase
what happens to BP during pregnancy?
it decreases earlier in pregnancy and can increase in 3rd trimester
what happens to HR during pregnancy?
increases by 10-15 bpm
Define: Gravidity
pregnancy - number of times a person has been pregnant
Define: Gravida
a pregnant person
Provide the correct terms for the following: Someone who has given birth to one full-term baby, and has additionally had 2 miscarriages.
primipara, multigravida
define parity:
number of times a person has given birth to a live or stillborn fetus of at least 20 weeks gestation
what window is considered preterm? at what point is it “late preterm”?
between 20 and 36w6d gestation. at 34 weeks
what is considered “term”?
37w to the end of week 40 plus 6 days
what are some things we want to change perhaps if trying to get pregnant?
drinking, smoking, MEDICATION
what is a teratogen?
environmental substances or exposures that result in functinal or structural disability
we are big sticklers about _______ in pregnancy, and it fluctuates a lot
blood pressure
preconception assessments: (5)
-height, weight, bmi
-bp
-STI screening
-Pap
-other labs including vaccines up to date
what risks can be modified before pregnancy?
nutrition (++folate), exercise, BMI, safer sex, update vaccines, ETOH/smoking, intimate partner violence, oral health, occupation
how much folic acid should a low risk individual take?
0.4mg daily 2-3 months prior to conception until 4-6 weeks PP
how many days is a pregnancy?
280
when is the 2nd trimester?
14-26 weeks
OTC urine pregnancy tests can detect hCG usually when the level is about ______IU/L
25
when is the high sensitive period of pregnancy?
3-8 weeks or the embryonic period
what are the two layers of the membranes? which is the inner one?
amnion and chorion. amnion is inner, surrounding the baby and amniotic fluid
why is amniotic fluid volume important?
shock absorption, allows movement, temperature regulation. should be 700-1000ml at term
what develops/blends into the placenta?
the chorion
which part of the umbilical cord brings oxigenated blood to the fetus?
the vein
what is the maternal side of the placenta called?
decidua basalis
when is the placenta complete and functional?
12 weeks
true or false: there is no mixing of blood between the pregnant person and the fetus via the placenta
true
what happens if the placenta doesn’t implant properly?
spontaneous abortion can happen
what happens if the placenta implants “too well” into the uterus?
no issues at pregnancy but during delivery, when it detaches it can result in serious bleeding
what requires immediate attention during pregnancy as a warning sign?
bleeding