Week 1 maternal and fetal part 4 of 4 Flashcards
name the most common cause of polyhydramnios
esophageal atresia
which nerve is most commonly injured during abdominal hysterectomy
femoral nerve
which nerve may be injured during vaginal hysterectomy
how does this manifest?
common peroneal nerve
leads to foot drop
which nerve is commonly injured during vaginal delivery
lumbosacral nerve
what is the most common cause of anesthesia related maternal mortality
airway complications
fetal development size at 2-3 weeks post fertilization
fetus is microscopic in size.
fetal development
length at 12 weeks
10cm long
fetal development length at 20 wks
25cm long
fetal development 40 wks term length
53cm (21in)
fetal development weight reaches 1 lb at how many months
5.5mo
weight reaches 3 lbs at what month
7mo
weight reaches 4.5lbs at what month
8mo
term fetal weight
7lb
mother typically gains 11kg due to increase in what three things?
increased blood volume
size of fetus
placenta
heart rate close to term
140 bpm
when does fetal heart begin beating?
what is the average bpm at that point?
4 weeks
65bpm
fetal development cardiac output is constant at what Fetal heart rate?
constant from 120-180bpm
between what two weeks does surfactant production begin
23/24 weeks
** exam** how much pressure is needed to open airways
25-40mmhg
fetal development characteristic of liver metabolism
decreased liver metabolism
*** where does the spinal cord end in the fetus
L3
smaller airways leads to
high risk of obstruction
is fetal development lung compliance and FRC increased or decreased
decrease lung compliance
decrease FRC
fetal lungs have ____ closing capacity
increased closing capacity