exam 1 different flashcards
what does the VEAL/CHOP acronym describe?
v - variable decels occur because of cord compression
e- early decels occur because of head compression
a - accelerations are ok
l- late decels occurs because of placental perfusion problems
how long after conception is there a fetal heartbeat?
28 days or 6 weeks
when does gender differentiation occur?
at 4-6 weeks, however it is not detectable on U.C. until 16-20 weeks gestation
when are all the organ structures formed?
by 10 weeks gestational age
when does fetal breathing and hearing develop?
16 weeks
what is the youngest preterm survivor?
21 4/7 weeks
what hormone is dominant in the follicular phase?
estrogen
what hormone is dominant in the luteal phase?
progesteron
what days of the cycle is the follicular phase?
1-14, but it is variable
what days of the cycle is the luteal phase? what is it also known as?
15 -28, this is fixed, aka secretory phase
how do you calculate when ovulation would most likely occur?
subtract 14 from the length of the cycle
In a 28 day cycle, when does conception occur?
two weeks after the 1st day of the LMP
what happens in the first trimester? how long does it last?
0-12 6/7 weeks, organogenesis and cellular hyperplasia
what happens in the second trimester? how long does it last?
13 weeks to 27 6/7 weeks,
cellular hyperplasia and hypertrophy
what happens in the third trimester?
cellular hypertrophy, this is from 28 weeks to delivery
how long does the egg survive?
12-24 hours but the fertile period is only 6-12 hrs
how long does the sperm survive?
72 hrs
where do the sperm and the egg meet?
in the ampulla, which is the outer 3rrd of the fallopian tube
how do the different category drugs work?
A is fine, B is no risk in animals, C is unknown risk, D is evidence of risk and X is definite risk
how does fetal circulation work?
there are 2 arteries that carry waste away from the fetus , there is 1 vein that carries oxygenated blood to the fetus
what are fetal circulation adaptations?
1) ductus venosus is the liver bypass
2) ductus arteriosus is the lungs bypass
3) foramen ovale connects the two atria in the fetal heart
what are positive signs of pregnancy?
fetal heartbeat per doppler or fetoscope
fetal movement palpated or visualized by provider
visualization of fetus on U.S.
delivery
what are probable signs of pregnancy?
objective things the provider can observe and measure, such as chadwick signs, positive pregnancy test
what are presumptive signs of pregnancy?
subjective things the woman experiences and reports
