S8. extra cards from quiz

Question 1

what changes are seen in maternal creatinine clearance

Answer 1

inc by 50%

Question 2

what changes are seen in maternal stroke volume?

Answer 2

inc

Question 3

how is maternal blood pressure affected?

Answer 3

average=no change

drops slightly during T1 but stable level overall

SV and CO inc BUT TPR dec due to progesterone so cancels out

Question 4

what cellular layers present a barrier to transfer between maternal and fetal circulations in first trimester?

Answer 4

synctiotrophoblast
cytotrophoblast
fetal capillary endothelium

Question 5

what cellular layers present a barrier to transfer between maternal and fetal circulations in third trimester?

Answer 5

synctiotrophoblast
fetal capillary endothelium

in T3, cytotrophoblast layer has regressed to just an occasional cell

Question 6

what’s placenta accreta

Answer 6

excessive implantation into myometrium

Question 7

what’s placenta percreta

Answer 7

implantation across full width of uterus

Question 8

how soon after fertilisation can hCGbe detected reliably in urine vs serum?

Answer 8

serum= 7 days
urine= 14 days (reliably)